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Key to families | Table of families and genera
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
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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