Jepson eFlora
Key to families | Table of families and genera

Key to Avena

View taxon page for Avena

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

1. Callus glabrous; florets remaining attached at maturity; lemma glabrous or nearly so, awn of lower floret generally 0(15) mm ..... A. sativa

1' Callus bearded; florets falling singly or as a unit at maturity; lemma densely strigose or soft hairy, especially below, awned

2. Lemma bristle-tipped, teeth 2–6 mm ..... A. barbata

2' Lemma tip ragged or 2-forked, teeth <= 1.5 mm

3. Florets falling separately from glumes; awn of lowest floret 25–40 mm; leaf margin glabrous ..... A. fatua

3' Florets falling from glumes as a unit; awn of lowest floret 35–90 mm; leaf margin sparsely hairy ..... A. sterilis

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Citation for the whole project: Jepson Flora Project (eds.) [year] Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html [accessed on month, day, year]
Citation for an individual treatment: [Author of taxon treatment] [year]. [Taxon name] in Jepson Flora Project (eds.) Jepson eFlora, [URL for treatment]. Accessed on [month, day, year].
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