gramineae ect spot id Flashcards
Juncaceae
ugly lilies: Juncus sp., Luzula sp.
Juncus sp.
rush
- solid round stem, only basal bracts, many seeded ovary, crowded cyme/corymb
Luzula sp.
wood rush
- solid round stem, 3 ovules, flat leaves
Cyperaceae
sedges: Eriophorum polystachion, Scirpus sp., Eleocharis acicularis, Carex sp.
Eriophorum polystachion
Cyperaceae, cotton grass
- lots of white hair, solid round stems, spreading rhizomes
Scirpus sp.
Cyperaceae, Bulrush
- solid round/triangular stems, few bristles, flowers look like fuzzy buds
Eleocharis acicularis
Cyperaceae, needle spikerush
- one spike per shoot, three stigmas, leaves = bladeless sheathes, standing water
Carex sp.
Sedge
- ovary covered by perigynium, imperfect floret with 2-3 stigma, grows in tufts
Gramineae/Poaceae
Agropyron pectiniforme, Agrostis scabra, Beckmannia syzigachne, Bouteloua gracilis, Bromus inermis, Calamagrostis canadensis, elymus innovatus, Hordeum jubatum, Poa pratensis
Agropyron pectiniforme
Gramineae, crested wheatgrass
- awn (hair) on lemma and glume, open sheath with auricles, double-sided comb spike
Agrostis scabra
Gramineae, ticklegrass
- hair-like leaves with inrolled margins, open sheath, no palea, serrated glume, very open panicle
Beckmannia syzigachne
Gramineae, slough grass
- circular spikelet, NOT comb-like inflorescence, one floret/spikelet
Bouteloua gracilis
Gramineae, blue grama grass
-single-sided comb-like inflorescence, small hairs on ligules, one perfect floret/spikelet
Bromus inermis
Gramineae, smooth brome
- glumes shorter than floret, no awns, more than two florets/spikelet (stacked)
Calamagrostis canadensis
Gramineae, marsh reedgrass
- one floret/spikelet, drooping panicle, long ligule, long hairs within floret
