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Rhs Level 2 Horticulture > Water Garden Plants > Flashcards

Flashcards in Water Garden Plants Deck (14)
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1

Give the proper name for plants' adaptations to watery conditions.

Hydrophytic adaptations.

2

How do leaves adapt to cope with being submerged? (2 answers)

They adapt to photosynthesise in low light
They are finely divided to increase surface area

3

How do floating leaves arrange their stomata

On the upper surface to avoid being drowned

4

How could plants which can't root adapt themselves?

Become a free floater - these don't need to root.

5

Seeds of water plants have what important characteristic for survival?

High reserves of energy so that emerging plants make it to the surface.

6

What are the 3 main types of water plant?

Oxygenators, Deep Water Aquatics and Free Floaters.

7

For which elements do oxygenators compete with algae?

Minerals and CO2

8

Give 2 examples of oxygenating plants.

Ceratophyllum demersum (hornwort)

Myriophyllum spicatum (milfoil)

9

Give 2 examples of the advantages and needs of deep water aquatics.

Depth of water 30-90 cm
Decorative
Give shade providing shelter for fish and frogs, reducing algae

10

Give 2 examples of deep-water aquatics.

Nymphaea spp.

Nymphoides peltata (water fringe)

11

Give 2 examples of free floaters.

Hydrocharis morsus ranea (frogbit)

Trapa natans (water chestnut)

12

Which 2 types of plant could be considered shallow aquatics?

Marginals, bog plants

13

Give 2 examples of marginal plants.

Caltha palustris (marsh marigold)

Iris laevigata (water iris)

Zantedeschia aethiopica (arum lily)

14

Give 2 examples of bog plants.

Gunnera manicata

Ligularia dentata

Mimulus cupreus (monkey flower)