Key to Anthoxanthum
View taxon page for Anthoxanthum
(For a list of species in Anthoxanthum, use the above link.)
Jepson Manual glossary definitions can be seen by moving your cursor over words underlined with dots.
1. Glumes unequal, lower
glumes 1-veined, ± 1/2 upper glumes; 2 lower
floret awns 1. Bristle-like appendage or elongation, generally terminal. 2. Stiff, needle-like pappus element in Asteraceae.
3–10 mm
2. Annual; lower
sterile lemma In Poaceae, the lower, generally larger of two sheathing bracts subtending a flower, generally ensheathing the palea (in a sterile lemma, the associated flower and sometimes palea are rudimentary or absent); with the palea and flower, comprising the floret.
awn 1. Bristle-like appendage or elongation, generally terminal. 2. Stiff, needle-like pappus element in Asteraceae.
bent
..... A. aristatum subsp. aristatum 1' Glumes ± equal, generally 3-veined; 2 lower floret awn 0
3. Upper
leaf Organ arising from a stem, generally composed of a stalk (petiole) and a flat, expanded, green, photosynthetic area (blade); distinguished from a leaflet by the presence in its axil of a bud, branch, thorn, or flower; sometimes with lateral, basal appendages (stipules); either simple (toothed, lobed, or dissected but not divided into leaflets) or compound (divided into leaflets).
blades ±
spreading Oriented more or less perpendicularly to the axis of attachment; often, more or less horizontal.
; lower lemma hairy, often
papillate Pertaining to a surface (e.g., of a leaf, stigma, fruit) bearing small, rounded or conic protuberances (papillae).
..... A. nitens subsp. nitens 3' Upper leaf blades generally stiffly
erect Upright; vertically oriented.
; lemma mostly
glabrous ..... A. occidentale
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