Key to Danthonia

View taxon page for Danthonia

(For a list of species in Danthonia, use the above link.)

Jepson Manual glossary definitions can be seen by moving your cursor over words underlined with dots.

1. Lemma awnless ..... [D. decumbens]

1' Lemma awned

2. 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 abruptly 

spreading 

Oriented more or less perpendicularly to the axis of attachment; often, more or less horizontal.

to 

reflexed 

Abruptly bent or curved downward or backward.

; lower inflorescence branches flexible, ± divergent to reflexed ..... D. californica

2' Upper leaf blades 

ascending 

Curving or angling upward from base, or about 30-60 degrees less than vertical or away from axis of attachment.

; lower inflorescence branches or stalks stiff, 

erect 

Upright; vertically oriented.

3. Spikelets generally 5–10 per inflorescence; 

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.

(except awns) 3–6 mm; leaves generally glabrous, not 

papillate 

Pertaining to a surface (e.g., of a leaf, stigma, fruit) bearing small, rounded or conic protuberances (papillae).

..... D. intermedia subsp. intermedia

3' Spikelets 1(2–3) per inflorescence; lemma (except awns) 5.5–11 mm; leaves generally densely hairy, hairs papillate at base or leaf surface papillate only ..... D. unispicata

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