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Plant
longevity
annual or biennial
perennial
Graminoid Traits
cespitose (i.e., tufted)
cespitose
not cespitose
stem consistency
solid
hollow except at nodes
leaf sheath
open (split on side)
closed (not split)
ligules
eciliate membrane
ciliate membrane
fringe of hairs
blade margin
entire
serrulate
ciliate
auricles
absent
present
spikelet disarticulation
breaking up at maturity (above glumes)
falling entire (below glumes)
spikelet arrangement
spike
raceme
panicle
symmetry
equilateral
unilateral
spikelets (fertile)
sessile
pedicelled
spikelet compression
laterally compressed
dorsally compressed
subterete
awns - present/absent
awns present
awns absent
Grass Traits
fertile florets per spikelet
1
2 or more
inflorescence form (open vs contracted)
open
contracted
glume similarity
similar in length
unequal in length
glume apex
apex entire
apex 2-fid
lemma
glabrous
pubescent
apex 2-fid or more
distinctly keeled
Highlands Center for Natural History - Common Grasses
Sue Smith
Species Count: 18
Poaceae
Bouteloua curtipendula
Bouteloua gracilis
Bromus anomalus
Bromus inermis
Bromus tectorum
Eragrostis cilianensis
Eragrostis curvula
Eragrostis mexicana
Lycurus setosus
Muhlenbergia emersleyi
Muhlenbergia fragilis
Muhlenbergia minutissima
Muhlenbergia rigens
Muhlenbergia sinuosa
Panicum capillare
Poa fendleriana
Poa pratensis
Sporobolus cryptandrus