Poaceae Flashcards
downy brome
leaves are densely covered with soft hair
short ligule, no auricle
dense and drooping infloresence
large crabgrass
pointed ligule
leaves are flat with long stiff hairs
infloresence is 3-11 finger like spikes, like crows feet
barnyardgrass
no auricle or ligule
flat smooth leaves, sheath is open (barn door’s open!)
crowded red to purple spikelets
quackgrass
only perennial in the group
spikelets have no awns
thick wide leaves, may be constricted at tip
rhizomes
Italian ryegrass
aka annual ryegrass
shiny flat leaves with prominant veins
spikelets are ALTERNATE
clasping auricles
witchgrass
extremely hairy leaves
hairy ligule
open branched panicle with single seed at tip
annual bluegrass
leaves are bright green
prow or canoe like tip
pyramid shaped infloresences
stem is somewhat flattened
rattail fescue
leaves are folded and less than 1/16” wide
looks like bull rush but not all basal leaves
blades are hairless
narrow awned panicles, up to 8” long
Cyperaceae
sedges have edges
feel the stem
Juncaceae
Rush family
leaf blades are flat
rounded leaves compared to grasses
Liliaceae
wild garlic
looks like grasses or onions, also round
Pigweed family
Amaranthaceae
pigweed
parsely family
Apiaceae
poison hemlock, wild carrot, cow parsnip
sunflower family
Asteraceae
mayweed chamomile, yellow starthistle, canada thistle, bull thistle, horseweed, prickly lettuce
pineapple weed, tansy ragwort, common groundsel, spiny sowthistle
mustard family
Brassicaceae
shepherd’s purse
little bittercress
hoary cress
perennial pepperweed
wild radish
