Lecture - Plant and Family Details List Flashcards

(73 cards)

1
Q

Magnoliaceae

A

Small family

Trees and shrubs. Simple leaves.

Large flowers usually borne singly.

Fruits are aggregates of follicles or samaras.

Distinctive rings around the stem.

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2
Q

Magnolia virginiana

A

Sweetbay
Magnoliaceae

Form: Tree
Height: Medium height
Spread: ½ - 1x height
Spacing: same as spread
Zones: Coastline NJ - deep south
Flowers: white, lemon scented - strong. May – June

Uses: Great small patio tree/Specimen tree. Flowers bloom later than most other Magnolias.

Culture: full sun - full shade. Plant only in the spring. Tolerates wet soils

Limitations: Informal. Low density of flowers

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3
Q

Magnolia virginiana cultivar

A

Magnolia virginiana ‘Henry Hicks’
Henry Hicks sweetbay

Remains evergreen all winter even in cold climates. Denser growth habit

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4
Q

Liriodendron tulipifera

A

tulip tree
Magnoliaceae

Form: Tree
Height: Very tall - canopy topper
Spread: 30’ – 50’
Spacing: ditto
Zones: Maine/Canada to TX & FL
Flowers: yellow and orange hard to see in the canopy May – June
Fall Color: yellow

Uses: Specimen tree, Shade Tree

Culture: Full sun. Typical soil. Easily transplanted. Best planted in spring.

Limitations Too big for most urban or residential locations. Fleshy roots, somewhat shallow. Weak wood; self-pruning. Flowers too high in tree for showy effect

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5
Q

Annonaceae

A

Pretty big

All forms except herbs.

Leaves typically alternate, simple.

Vegetative buds naked, elongate. Twigs tend to dry to a black color. Twigs and young stems often zigzag.

Flowers nearly always pendulous. Petals appear similar to sepals, in 3 sets of 3.

Fruit a berry. Seeds are large.

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6
Q

Asimina triloba

A

paw paw
Annonaceae

Height: Shortish
Spread: Same as height
Spacing: Doesn’t need room
Zones: Canada to TX & FL
Flower Color: maroon-purple, May
Fruit Color: yellowish green, edible, September – October
Fall Color: Yellow

Uses: Naturalizing, Edible Fruits, Street Tree

Culture: Full sun - shade. Needs moist, fertile, well-drained soils. Does best in slightly acid soils. Tends to sucker from the roots – not an ideal plant for small spaces

Limitations: Difficult to transplant when large. Fruits can be a slight maintenance problem but often harvested by raccoons

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7
Q

Lauraceae

A

Big: Few genera, many species

Deciduous trees and shrubs, herbaceous parasites. Aromatic vegetation. Alternate entire leaves, often thick bladed.

Small, inconspicuous flowers with parts in threes. Flowers radially symmetrical, petals and sepals fused only at the base. Petals and sepals similar. Anthers with flaps at the tips.

Fruit a berry or drupe with single, large seed.

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8
Q

Lindera benzoin

A

spicebush
Lauraceae

Form: Shrub
Height: Slightly above head
Spread: About a tall person
Spacing: ditto
Zones: 4 – 9
Flower Color: greenish-yellow (dioecious), fragrant Late March – Early April
Fruit Color: Scarlet (♀)
Fall Color: Yellow

Uses: Specimen Border, Naturalizing, All parts are spicy (leaves and fruits can be made into tea)

Culture: Full sun to full shade, best with some shade. Typical soil. Best in acidic soil (pH 4.5 – 6). Difficult to transplant

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9
Q

Sassafras albidum

A

sassafras
Lauraceae

Form: Tree
Height: Tallish
Spread: About same as height
Spacing: ditto
Zones: Maine to Florida
Flower Color: yellow, small but fragrant Mid – May
Fruit Color: Blue on red stalks August – September
Fall Color: Brilliant orange-scarlet or yellow

Uses: Natively grows in thickets or hedgerows. Makes nice lawn specimen. Seasoning. Food plant for swallowtail butterflies

Culture: Typical, acid soils. Full sun to light shade

Limitations: Few problems. Tap root - difficult to transplant large individuals. Root suckers need controlling. Iron chlorosis in high pH soils

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10
Q

Lardizabalaceae

A

Small family

All vines.

Flowers unisexual; plants monoecious or dioecious.

The medium-sized, three-parted flowers have the petals and stamens opposite each other.

Ovaries are separate from one another and the fruits are more or less fleshy, or sometimes are follicles.

Leaves compound.

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11
Q

Akebia quinata

A

five-leaf akebia
Lardizabalaceae

Form: Vine
Height: pretty high
Spread: Fairly aggressive
Don’t plant
Zones: MA to SC

Fall Color: Deep green (semi-evergreen foliage)

Culture: Full sun or light shade. Tolerant of a wide range of soil conditions – moist or dry. Readily transplanted

Limitations: Invasive tendencies but no legal invasive status in MD (assessment in progress). Grows rapidly and kills the plants it climbs on

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12
Q

Ranunculaceae

A

Big family - few genera, many species

Herbs (mostly) or vines (Clematis)

Sepals often resemble petals

Leaves typically lobed or compound, lacking stipules

Special nectar producing structures called nectaries

Leaves alternate in all genera except Clematis

Flowers typically perfect (having both male and female parts); Clematis has separate male and female flowers

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13
Q

Clematis terniflora

A

sweet autumn clematis
Ranunculaceae

Form: Vine
Height: Moderate
Spread: Not much
Spacing: don’t plant
Zones: MA-SC, FL in shade

Flower Color: White, fragrant, August – October
Fruit Color: Silver – White
Fall Color: Green

Uses: Vine, climbs by twining. Screen

Culture: Full sun to partial shade. Thrives on neglect. Tolerates seashore conditions. Grows in acid or alkaline soil. No significant pests

Limitations: “Vigorous to the point of viciousness” “Engulfs every structure in sight” Difficult to get rid of once established

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14
Q

Berberidaceae

A

14 Genera 701 species

Shrubs or perennial herbs

Leaves simple or odd-pinnately compound

Plants or leaves often spiny-toothed

Flowers bisexual, radially symmetrical

Parts in 4’s to 6’s

Fruit a berry Inner bark and wood commonly yellow

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15
Q

Berberis thunbergii

A

Japanese barberry
Berberidaceae

Form: Shrub
Height: Person-high
Spread: about same
Spacing: cheak-to-cheak
Zones: Maine-NC or Georgia if in shade
Flower Color: Yellow with reddish outside - May
Fruit Color: red - Fall, winter
Fall Color: Scarlet

Uses: Borders, Hedges, Mass plantings, Barrier plant

Culture: Best in full sun, tolerates partial shade. Needs well-drained soils. Exceptionally adaptable. Tolerates drought and heat. Tolerates urban conditions. Transplants easily. Deer resistant! Few pests

Limitations: Straight species MD Tier 2 invasive (6/23/2020)

Plant breeding developments:

Dr. Mark Brand, University of Connecticut produced among others: Berberis thunbergii ‘UCONNBTCP4N’ PP30,095 WorryFree® Crimson Cutie® barberry

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16
Q

Berberis thunbergii cultivars

A

Berberis thunbergii var. atropurpurea

red leaf Japanese barberry:

A naturally-occurring variety that has reddish foliage that tends to fade to green during the summer. Most red foliaged cultivars are derived from this variety. B. t. var. a. ‘Nana’ = synonym to ‘Crimson Pygmy’ - Crimson Pygmy barberry

Berberis thunbergii ‘Rose Glow’

rose glow barberry:

New foliage mottled rose pink with deeper red purple. Fall color lasts longer than in the species.

Berberis thunbergii ‘Aurea’

golden barberry:

Leaves vivid yellow, does not scorch in sun even in southern landscapes; yellow-green in shade. Dense, slow-growing. Does not flower or fruit heavily.

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17
Q

Platanaceae

A

Extremely small family

Large trees. Bark exfoliates in characteristic plates.

Leaves simple, alternate, lobed. Stipules leaf-like and completely surround the stem. Axillary buds enclosed by petiole base.

Flowers and fruits in dense, spherical heads. Male and female flowers separate. Sepals, petals, and anthers in 4’s

Fruit cluster of achenes each with a tuft of hairs.

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18
Q

Platanus occidentalis

A

sycamore
Platanaceae

Height: super tall
Spread: almost as wide
Spacing: ditto
Zones: Maine to FL

Uses: Shade tree, Specimen, Street Tree

Culture: Full Sun, Adaptable but grows best in rich moist soils. Tolerates urban conditions. Easily transplanted. Tolerates high and low pH soils. Leave if you have one – however better options in most landscape settings

Limitations: Shallow root system makes them susceptible to drought. Extremely messy (leaves, fruit, twigs). Anthracnose Powdery mildew. Many other disease problems. Too large for many situations. Roots impact built features such as pavement, pipes, foundations

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19
Q

Sycamore Anthracnose

Apiognomonia veneta (Discula platani)

A

Leaf blight
Thin canopy
Twig lesions
Twig blight

Managing and Controlling:

  • Remove symptomatic tissue in fall and winter
  • Maintain tree vigor through proper watering and fertilizing
  • Treat with fungicide if absolutely necessary
  • At or just before bud break in spring (foliar or injection)
  • If you can see symptoms on leaves it is too late to treat.
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20
Q

Platanus ×acerifolia

A

London plane tree
Platanaceae

Platanus occidentalis × Platanus orientalis

Height: Tallish - good for streets
Spread: same
Spacing: same
Zones: (Maine) Upper NY - Georgia (FL)

Uses: Street tree. Shade tree. Parks, golf courses

Culture: Same as P. occidentalis. Extremely tolerant of many conditions including urban

Limitations: Approaching monoculture plantings in many places. Variable susceptibility to many diseases including powdery mildew and anthracnose

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21
Q

Comparison of sycamore, oriental plane tree, and London plane tree

A
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22
Q

Platanus ×acerifolia cultivars

A

Platanus ×acerifolia ‘Bloodgood’

Bloodgood plane tree

Greater resistance to anthracnose than unselected P. ×acerifolia, But more recently has shown susceptibility. Not ozone tolerant – late summer stippling and leaf drop

Platanus ×acerifolia ‘Liberty’ and Platanus ×acerifolia ‘Columbia’

  • Resulted from controlled crosses of symptomless Platanus orientalis × two susceptible Platanus occidentalis
  • Progeny were exposed to anthracnose and evaluated for susceptibility.
  • Symptom free clones were evaluated for growth form, landscape
    attributes, and tolerance of street conditions.
  • Highly resistant to anthracnose and powdery mildew
  • Resist inward spread of wood decay by compartmentalizing damage
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23
Q

Cercidiphyllaceae

A

Tiny family

Trees.
Male and female flower separate.
Plants dioecious.
Flowers lack petals. Sepals on male
flower minute.
Fruit a follicle.
Leaves opposite to alternate on same
plant.
Leaves simple with primary veins
palmate.
Spur shoots present.

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24
Q

Cercidiphyllum japonicum

katsura tree

Cercidiphyllaceae

A

Form: Tree
Height: 45’ – 55’ (100’)
Spread: 30’ – 40’
Spacing: 30’ – 40’
Zones: 4 – 8
Flower Color: n.s., reddish, March – April
Fruit Color: n.s., tan – brown, persist all winter
Fall Color: yellow to apricot

Uses: Elegant shade tree, Specimen tree, Planted in groves. Plant in large spaces: large lawns, parks, golf courses

Culture: Best fall color in full sun. Best in rich, moist well-drained soil. Needs water in extended drought, especially when young pH adaptable

Limitations: No severe pests. Not easy to transplant. Large size limits planting locations

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25
Iteaceae
2 Genera 18 Species Trees to shrubs Pith chambered Leaves alternate, spirally arranged Leaves evergreen or deciduous Leaf margins serrate, sometimes with glands at the tips of the teeth Stipules small, on leaf base or adjacent stem With superposed axillary buds Inflorescence: spikes, racemes or panicles in leaf axils Flowers small, sepals and petals in fives Sepals and petals fused to form a hypanthium Fruit a capsule
26
*Itea virginica*
Virginia sweetspire Iteaceae Form: Shrub Height: 3’ – 5’ Spread: 5’ – 10’ Spacing: 5’ – 10’ Zones: 5 – 9 Flower Color: White, fragrant June - July Fruit Color: n.s. brown capsule Fall Color: yellow, to orange, to scarlet, to purple Uses: Shrub borders. Foundation plants. Naturalizing in moist areas Culture: Full sun to full shade. Prefers moist, fertile soils. Tolerates wet or dry soils. Prefers acidic to neutral soils. Very easy to propagate from cuttings Limitations: No serious pests or diseases. Not tolerant of extensive drought until it is well established. Can spread beyond intended area if soils are very moist.
27
*Itea virginica* ‘Henry’s Garnet’ Henry’s Garnet sweetspire
Fall Color: deep red purple, lasts longer than for species Flowers showier More cold tolerant (to Zone 3)
28
Hamamelidaceae
27 Genera 82 species Trees and shrubs. Stellate or tufted hairs. Leaves mostly alternate, simple. Leaves often with entire margins at the base, toothed above. Strongly stipulate leaves. Smallish flowers often in dense clusters. Petals often strap shaped. Ovary at least partly inferior. Fruit a capsule or aggregate of capsules. Seeds often with ballistic dispersal.
29
*Liquidambar styraciflua*
sweetgum Hamamelidaceae (now Altingiaceae) Form: Tree Height: 50’ – 70’ (100+) Spread: 25’ – 40’ Spacing: 25’ – 40’ Zones: 5 – 9 Flower Color: n.s April - May Fruit Color: green in summer, brown in fall Fall Color: Scarlet, yellow, orange Uses: Shade tree, Avenue tree, Specimen Windbreaks Culture: Full sun to partial shade. Soils ≤ pH 7. Prefers moist soils but widely adaptable to a variety of conditions once established. Moderately drought resistant Limitations: Fruits drop endlessly with high viability. Aggressive, shallow root system lifts sidewalks and curbs. Extremely sensitive to construction activities. No serious pests or diseases. Difficult to transplant when large
30
*Liquidambar styraciflua* cultivars
*Liquidambar styraciflua* ‘Burgundy’ burgundy sweetgum Wine-red color in fall and on new leaves. Leaves may persist into winter *Liquidambar styraciflua* ‘Festival’ festival sweetgum More conical, narrow and upright than the species. Less cold hardy (7 – 9). *Liquidambar styraciflua* ‘Rotundiloba’ rotund sweetgum Rounded lobe tips. Fruitless. Yellow to orange fall color some years, burgundy others; narrow pyramidal form. Not reliably hardy in Zone 5. Original tree discovered in the wild in North Carolina in 1930
31
*Fothergilla gardenii*
dwarf fothergilla Hamamelidaceae Form: Shrub Height: 3’ – 5’ Spread: 6’ Spacing: 4’ – 5’ Zones: (4)5 – 8(9) Flower Color: White, fragrant; stamens showy Late March – early April Fruit Color: n.s. Fall Color: Yellow to Orange to Red Uses: Shrub border, Foundation plants, Mass plantings, Naturalized settings Culture: Grows in full sun to shade. Needs full sun to develop fall color. Prefers moist soils but will not tolerate standing water. Does best in acidic soils Limitations: Relatively trouble free. Drought stress in hot dry situations, avoid windy sites
32
*Hamamelis virginiana*
common witchhazel Hamamelidaceae Form: Small Tree Height: 7’ – 10’ Spread: 15’ – 20’ (30’) Spacing: 8’ – 15’ Zones: 3b – 8(9) Flower Color: Yellow, fragrant, Oct. – Dec. Fruit Color: n.s. Fall Color: light yellow Uses: Patio Tree, Screen, Border Culture: Performs well in shade. Full sun for best fall color and bloom. Great variation in adaptability. Not very tolerant of high pH Limitations: No serious pest or diseases. Does not tolerate extremely dry conditions
33
Vitaceae
14 genera, 850 species Mostly vines. Leaves alternate. Leaves with palmately compound, lobed, or veined blades. Leaves with stipules that fall early. Commonly with tendrils or inflorescences opposite the leaves. Stems often with lots of lenticels. Inflorescence a cyme and small flowers. Fruit a berry.
34
*Ampelopsis brevipedunculata*
porcelain berry Vitaceae Form: Vine Height: 25’+ Spread: 25’+ Spacing: 0 Zones: 4 – 8 Flowers: n.s., greenish-white Fruit Color: yellow to lilac to bright blue Fall Color: n.s. Uses: None recommended. In the past used for showy berries. Climbing over trellises and fences Culture: Best in full sun to partial shade. Transplants readily. Needs support. Extremely fast growing. Tolerates dry soils Limitations Invasive habits but no legal invasive status in MD. Covers other species
35
*Ampelopsis brevipedunculata* ‘Elegans’
Variegated leaves when grown in the sun. More deeply lobed leaves. More compact growth habit. Slightly less aggressive than the species.
36
*Parthenocissus quinquefolia*
Virginia creeper Vitaceae Form: Vine Height: 30’ – 50’ Spread: 30’ – 50’ Spacing: 30’ – 50’ Zones: 4 – 9 Flowers: n.s., greenish-white Fruit Color: Purple violet, Sept. – Oct. Fall Color: Brilliant red Uses: Climbing over walls, fences and trellises Culture: Grows in full sun to full shade. Tolerant of the most trying conditions. Will grow at the seashore Limitations: Not strong enough for use on buildings. Can easily get away from you and considered a weed by many. Susceptible to leaf spot. Susceptible to canker
37
*Parthenocissus tricuspidata*
Boston ivy Vitaceae Form: Vine Height: 40’ – 60’+ Spread: 30’+ Spacing: 10’ – 30’ Zones: 4 – 8 Flowers: n.s. Fruit Color: Bluish black berries in fall Fall Color: Dark red Uses: Wall covering - holds well on buildings Climate control in buildings Culture: Grows in full sun to full shade. Tolerant of trying conditions. Tolerant of salt Liabilities: Can become invasive. Susceptible to Japanese beetle. Tendrils and adhesive discs hard to remove from buildings. Not good on trellises or fences
38
Lythraceae
31 genera, 620 species Corolla is often crumpled in bud – petals are “crinkly”. Petals “clawed”. Often 10+ stamens of unequal length. Calyx is thick and ribbed. Fruit a dry capsule. Opposite to sub-opposite leaves. Often with exfoliating bark.
39
*Lagerstroemia fauriei*
Fauriei crapemyrtle Lythraceae Form: Shrub to Tree Height: 20’ – 25’ Spread: 15’ – 20’ Spacing: 15’ Zone: (6)7 – 9 Flower Color: white (not exceptional) - Summer Fruit Color: n.s. Fall Color: Red Uses: Specimen, Accent, Patio tree. Spectacular exfoliating bark Culture: Best in full sun. Prefers well drained soils. Resistant to powdery mildew Limitations: Flowers not exceptional. Non-recurrent flowering
40
*Lagerstroemia indica*
crapemyrtle Lythraceae Form: Shrub to Tree Height: 15’ – 20’ Spread: 15’ – 20’ Spacing: 10’ – 20’ Zone: 7 – 9 Flower Color: profuse bloom; white, pink, red - August - frost Fruit Color: n.s. Fall Color: Yellow – orange – red Bark: Tan Uses: Specimen, Accent, Patio tree. Recurrent flowering: profuse and prolonged summer bloom Culture: Full sun. Prefers acidic soil. Best in loamy, moist well-drained soils. Blooms on new growth. No insect problems. Transplant in spring Limitations: Susceptible to powdery mildew. Can be cold damaged in Zone 6
41
Pruning *Lagerstroemia*
Remove flowering stalks after bloom to encourage second blooming Prune vegetative stalks in spring or summer (before August) to ensure winter hardiness Remove all but 3-4 main stems
42
*Lagerstroemia* Cultivar Selections
Breeding began at the National Arboretum in 1962 to increase disease resistance within *Lagerstroemia indica*. A few examples…. Lagerstroemia indica 'Catawba' Lagerstroemia indica 'Cherokee' Lagerstroemia indica 'Conestoga' Lagerstroemia indica 'Powhatan' Lagerstroemia indica 'Potomac' Lagerstroemia indica 'Seminole'
43
*Lagerstroemia* hybrids
Lagerstroemia indica * Pro: Recurrent blooming * Con: Powdery mildew Lagerstroemia fauriei * Pro: No powdery mildew * Con: No recurrent bloom Hybrids: * Resistant to powdery mildew * Different size groups * New bark colors * Recurrent bloom * Potentially increased hardiness
44
Lagerstroemia cultivars - hybrids
Lagerstroemia fauriei arrived in the U.S. in the 1950s. Lagerstroemia indica × Lagerstroemia fauriei Lagerstroemia × ‘Acoma’ Lagerstroemia × ‘Lipan’ Lagerstroemia × ‘Sioux’ Lagerstroemia × ‘Tonto’ Lagerstroemia × ‘Yuma’ Lagerstroemia × ‘Chickasaw’ Lagerstroemia × ‘Pocomoke’ Five original plants and their progeny intercrossed for five generations. The first cross was made in 1967 Final cross was made in 1989 'Chickasaw‘ was released 1997 ‘Pocomoke’ was released in 1998
45
*Lagerstroemia* × ‘Natchez’
Natchez crapemyrtle Lythraceae Form: Shrub to Tree Height: to 21’ Spread: 21’ – 30’ Spacing: 10’ – 20’ Zone: (6)7 – 9 Flower Color: White July - Frost Fruit Color: n.s. Fall Color: Orange – bronze Bark: Cinnamon brown Differences from L. indica: * Spectacular exfoliating bark * Resistant to powdery mildew Differences from L. fauriei: * Recurrent blooming
46
Bignoniaceae
110 genera, 800 species All are woody. Stems with lenticels. Most have opposite leaves. Leaves may be simple or compound. Flowers are bilaterally symmetrical and often large. Petals fused into a tube. Fruit a capsule with many seeds. Seeds are usually flattened and winged.
47
*Campsis radicans*
trumpetcreeper / trumpet vine Bignoniaceae Form: Vine Height: 30’ – 40’ Spread: 15’ – 30’ Spacing: 10’ – 15’ Zones: 4 – 9 Flower Color: Orange to scarlet. Fruit Color: n.s. Green, 3” – 5” long Fall Color: n.s. Uses: Climbing on walls and trellises. Can form nice boundaries. Accent. Specimen. Espalier Culture: Grows in full sun to partial shade. Tolerates trying conditions. Tolerates seashore conditions. Liabilities: Can spread VERY rapidly. Very hard to get rid of once established. Not a strong climber – holds on by aerial rootlets
48
*Campsis radicans* cultivars
Campsis ×tagliabuana ‘Madame Galen’ hybrid trumpet creeper Campsis radicans × Campsis grandiflora * Larger flowers and more flowers than C. radicans * Not as cold hardy as C. radicans (Zones 5 – 9)
49
*Catalpa bignonioides*
Southern Catalpa Bignoniaceae Form: Tree Height: 45’ Spread: 45’ - 55’ Spacing: 45’ – 55’ Zones: 5 – 9 Flower Color: White with yellow and purple spots Fruit Color: Green to brown, straight slender pod. Fall Color: n.s. * Similar to Catalpa speciosa * Smaller * Flowers ~ 2 weeks later
50
*Catalpa bignonioides* cultivar
Catalpa bignonioides ‘Nana’
51
*Catalpa speciosa*
northern catalpa Bignoniaceae Form: Tree Height: 50’ – 60’ (90’) Spread: 25’ – 35’ (40’ – 50’) Spacing: 25’ – 35’ (40’ – 50’) Zones: 4 – 8 Flower Color: White with yellow and purple spots Fruit Color: Green to brown pod. Pod slightly curved. Fall Color: Yellow, not spectacular. Uses: Specimen tree. Shade tree. Great flowers Culture: Full sun to partial shade. Drought tolerant. Tolerant of many soil conditions Limitations: Needs large area for best effect. Fruits can be maintenance problem. Can be weedy. Susceptible to powdery mildew
52
Paulowniaceae
1 Genus 6 Species Trees. Leaves opposite. Inflorescences terminal. Flowers large, bilaterally symmetrical. Calyx lobes fused to one another, corolla lobes fused. The calyx is densely brown tomentose. Fruit a capsule. Seeds winged.
53
*Paulownia tomentosa*
empress tree Paulowniaceae Form: Tree Height: 45’ – 60’ Spread: 30’ – 40’ Spacing: 30’ – 40’ Zones: (5)6 – 9 Flower Color: Pale violet, fragrant - Mid-May Fruit Color: n.s. brown capsules Fall Color: n.s. Uses: Not recommended. Shade tree in the past Culture: Full sun to partial shade. Extremely rapidly growing. Prefers moist, well drained soils but tolerates a range of conditions. Tolerates pollution. Tolerates seashore conditions. Needs protection from wind. Limitations: Messy, leaves drop over long period. Fruits look unkempt. Coarse. Dense canopy excludes other plants. Invasive habits (2000+ seeds per capsule; MD assess in progress)
54
Verbenaceae
34 genera, 1175 species Vines, trees, shrubs, or herbs. Stems often square. Leaves opposite and simple or palmately compound. All parts strongly scented. Flowers bilaterally symmetrical. Petals fused. Typically with 4 stamens. Ovary with four ovules.
55
*Caryopteris ×clandonensis*
bluebeard Verbenaceae Caryopteris incana × Caryopteris mongholica Form: Shrub Height: 3’ – 5’ Spread: 2’ – 3’ Spacing: 2’ – 3’ Zone: 6 – 9 Flower Color: Blue July – Sept. Fruit Color: n.s. Fall Color: n.s. Uses: Massing. Low border. Flowers late in summer. Leaves stems and flowers fragrant Culture: Tolerates heat and drought. Full sun. Tolerates seashore conditions (sandy and salty soils). Can be cut to the ground, flowers on new wood. Best in well drained soil. Transplants easily Limitations: Needs to be pruned hard or it can be leggy and unattractive. Weedy, may seed into areas if not deadheaded
56
*Callicarpa japonica*
Japanese beautyberry Verbenaceae Form: Shrub Height: 4’– 8’ Spread: 4’– 6’ Spacing: 3’– 6’ Zones: 5–8 Flower Color: n.s. pink, white or lavender. - July - August Fruit Color: Violet to metallic purple. Fall Fall Color: Yellow Uses: Same uses as C. dichotoma but C. japonica may benefit from cross pollination for fruit production Culture: same. Transplants easily. Well-drained soil. Full sun to light shade Limitations: Irregular fruiting in C. japonica. Can look ratty with age – rejuvenates well
57
Callicarpa japonica cultivar
Callicarpa japonica ‘Leucocarpa’ white-fruited Japanese beautyberry Callicarpa dichotoma ‘Early Amethyst’ early amethyst purple beautyberry Callicarpa dichotoma ‘Duet’
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*Vitex agnus-castus*
chaste tree Verbenaceae Form: Shrub to Tree Height: 10’ – 12’ Spread: 16’ Spacing: 5’ – 15’ Zone: (6)7 – 8(9) Flower Color: Lilac – purple, fragrant. June – Aug. Fruit Color: n.s. Fall Color: n.s Uses: Specimen. Massing. Screen. Border. Aromatic foliage Culture: Tolerates heat and drought. Easily transplanted. No severe insect or disease problems Limitations: Exotic looking but difficult to combine with other shrubs. Not hardy north of New York City. Can be invasive
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*Vitex negundo* var. *heterophylla*
cutleaf chaste tree Verbenaceae Form: Shrub to Tree Height: 10’ – 15’ Spread: 15’ – 20’ Spacing: 10’ – 20’ Zone: 6 – 8 Flower Color: Lavender June – Sept. Fruit Color: n.s. Fall Color: n.s. Uses: Specimen or border. More delicate texture and better form than V. agnus-castus. Hardier than V. agnus-castus. Aromatic foliage Culture: Tolerates heat and drought. Easily transplanted. No severe insect or disease problems. Needs full sun Limitations: Flowers not as showy as V. agnuscastus but leaves add interest
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Oleaceae
24 Genera 615 species Trees and shrubs. Opposite leaves. Simple or odd-pinnately compound leaves. No stipules. Stem somewhat enlarged and flattened at the nodes, but no line across the node. Lenticels obvious, often raised. Flowers with 4 sepals and 4 fused petals (or none), 2 anthers. Flowers unisexual or perfect.
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Chionanthus retusus
*Chinese fringe tree* Oleaceae Form: Shrub to Tree Height: 20’ – 30’ Spread: 20’ – 30’ Spacing: 20’ – 30’ Zones: (5)6 – 8 Flower Color: White, fragrant - June Fruit Color: Blue-black on ♀ plants Fall Color: Soft yellow, not consistent Uses: Specimen plant, especially in small sites. Can plant spring flowering species underneath it Culture: One of the last plants to leaf out in spring. Tolerates partial shade, best in full sun. Best in moist well drained, organic soil but adaptable. Air pollution tolerant. Drought tolerant. Flowers on current season’s growth Limitations: None significant. Not as cold hardy as Chionanthus virginicus
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*Chionanthus virginicus*
fringe tree Oleaceae Form: Shrub to Tree Height: 10’ – 15’ Spread: 10’ – 15’ Spacing: 10’ – 15’ Zones: 4 – 9 Flower Color: White, fragrant; ♂ flowers larger, more effective - May - June Fruit Color: Blue-black on ♀ Fall Color: Yellow Uses: Large shrub to small tree. Specimen plant, especially in small sites. Can plant spring flowering species underneath it Culture: One of the last plants to leaf out in spring. Tolerates partial shade, best in full sun. Best in moist well drained, organic soil but adaptable. Prefers acidic soils. Air pollution tolerant. Flowers on previous season’s growth Limitations: None significant. Male plant needed to set fruits. Slightly less showy than C. retusus as flowers are held below leaves v. terminal
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*Fraxinus americana*
white ash Oleaceae Form: Tree Height: 40’ – 50’ (100’) Spread: 30’ – 50’ Spacing: 30’ – 50’ Zones: 4 – 9 Flower Color: n.s. - April Fruit Color: n.s. green samara, on ♀ plants Fall Color: yellow to purple or maroon Uses: Shade tree. Avenue tree. Grows more slowly than green ash but ultimately is larger with better structure Culture: Widely adaptable to various soils and climates. Tolerates moderately poor, dry soil. Prefers full sun Limitations: Not as adaptable as green ash. Weak branch angles. Many diseases and insect pests: * Ash yellows * Banded ash clearwing moth borers * Emerald ash borer
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Fraxinus americana cultivars
Fraxinus americana ‘Junginger’ Autumn Purple® Male, therefore seedless Reddish-purple fall color
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*Fraxinus excelsior*
European ash Oleaceae Form: Tree Height: 30’ – 40’ Spread: 25’ – 35’ (–90’) Spacing: 25’ – 35’ (–90’) Zones: 5 – 7 Flower Color: n.s. - April Fruit Color: n.s. Fall Color: clear yellow Uses: Specimen tree Culture: Prefers rich, loamy soil. Full sun to half sun. Tolerates high pH soils Limitations: Borers. Large Size
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*Fraxinus pennsylvanica*
green ash Oleaceae Form: Tree Height: 50 – 60’ (80’) Spread: 30’ – 40’ Spacing: 30’ – 40’ Zones: (2b)3 – 9 Flower Color: n.s. April Fruit Color: n.s. green then brown on ♀ trees Fall Color: yellow Uses: Shade tree. Street tree. Specimen tree Culture: Full sun to partial shade. Tolerates poor soils. Tolerates high pH. Tolerates urban conditions: road salt, compacted soils. Grows quickly (2’ – 3’/year). More upright and irregular in growth than white ash Limitations: Fertile and abundant seed. Emerald ash borer. Banded ash clearwing moth. Scale. Ash yellows
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Fraxinus pennsylvanica cultivar
Fraxinus pennsylvanica ‘Patmore’ Patmore green ash Selected from seedlings from Alberta, Canada Male clone = fruitless Very cold hardy to -40 degrees Leaves persist longer into fall Straight trunk and uniform symmetrical branching
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*Ligustrum obtusifolium* var. *regelianum*
Regel privet Oleaceae Form: Shrub Height: 4’ – 5’ Spread: 6’ – 10’ Spacing: 6’ – 10’ Zones: 4 – 7 Flower Color: n.s., white, unpleasantly scented - Late May –early June Fruit Color: blue-black Fall Color: n.s. Uses: Informal hedge. Border. Screen. Considered to have the best form of the Ligustrums Culture: Full sun to partial shade. Tolerates salt from roads. Extremely tolerant of poor, dry soils. Branches grow horizontally Limitations: Tier 2 MD Invasive plant. Does not do well to the south of us. Foul smelling flowers
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*Ligustrum ovalifolium*
California privet Oleaceae Form: Shrub Height: 10’ – 15’ Spread: 8’ – 12’ Spacing: 3’ – 10’ Zones: 5 – 7(8) Flower Color: white - Late May Fruit Color: globose, black, minimally produced Fall Color: green (semievergreen here) Uses: Shrub. Outstanding formal hedge. Border Culture: Sun to partial shade. Tolerates salt from roads. Branches grow vertically Limitations: Not reliably hardy north of New York City. Foul smelling flowers
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*Ligustrum ×vicaryi*
golden vicary privet Oleaceae Ligustrum ovalifolium ‘Aureum’ × Ligustrum vulgare Height: 12’ Spread: 10’ Spacing: 2’ – 10’ Zones: 5 – 8 Flower Color: White Fruit Color: Blue black Fall Color: Golden yellow Uses: Same as other privets. Yellow foliage Culture: Needs full sun to develop good color. Best heavily pruned. Plant with dark colored plants for best effect Limitations: Not effective planted by itself. Shaded leaves turn sickly green
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*Syringa reticulata*
Japanese tree lilac Oleaceae Form: Tree Height: 20’ – 30’ Spread: 15’ – 25’ Spacing: 15’ – 20’ Zones: 3 – 7 Flower Color: white, foul smelling (privet-like) Early – to mid–June Fruit Color: n.s., green capsules Fall Color: n.s. Uses: Most trouble free lilac. Specimen tree. Street tree. Mass plantings Culture: Full sun for good flowering. pH adaptable. Easily transplanted. Prefers cool summers. Prune after flowering Limitations: Fewer problems than other lilacs. Powdery mildew. Leaf blight. Borers. Frost injury to young leaves. Foul smelling flowers
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Loganiaceae
14 genera 420 species Annual herbs to shrubs or vines. Leaves opposite, joined by line. Flowers with parts in 4’s- or 5’s. Flowers somewhat bilaterally symmetrical. Petals fused together into a tube. Sepals fused. Seeds without wings.
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*Buddleia davidii* butterfly bush Loganiaceae
Form: Shrub Height: 6’ – 8’ (15’) Spread: 6’ – 10’ Spacing: 6’ – 10’ Zone: 5 – 9 Flower Color: white, pink, purple, red Fruit Color: n.s. Fall Color: n.s. Uses: Shrub. border. Massing. Flowers profusely in late summer and fall. Flowers attract butterflies Culture: Full sun. Tolerates moderate ocean front conditions. Heavy pruning yields fewer, larger flowers. Well drained soil best. pH adaptable. Blooms in one year from seed Limitations: Too coarse to be used in most situations, although small and more refined selections have been made. Can be invasive if not deadheaded or sterile cultivar