Jepson eFlora: Key page
Vascular Plants of California
Key to families | Table of families and genera

Key to Avena

View taxon page for Avena

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

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

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

1' Callus bearded; florets falling singly or as a unit at maturity; lemma densely  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;  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



Citation for the whole project: Jepson Flora Project (eds.) . Jepson eFlora, [accessed on ]

Citation for an individual treatment: [Author of taxon treatment] [year]. [Taxon name] in Jepson Flora Project (eds.) Jepson eFlora, [URL for treatment]. Accessed on .

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