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Key to families | Table of families and genera

Specimen numbers are hyperlinked to records in the Consortium of California Herbaria data view where possible. Taxa are hyperlinked to entries in the Jepson Interchange via the "[Online Interchange]" link.

 

APERA

Dieter H. Wilken


Annual. Stem: erect, 1 to tufted, generally glabrous. Leaf: basal and cauline; ligule membranous, acute to toothed at tip; blade flat to rolled, generally ridged. Inflorescence: panicle-like; branches spike-like, minutely scabrous. Spikelet: glumes subequal, > floret, membranous, lower 1-veined, upper 3-veined; floret 1, vestigial florets occasionally present, bisexual, breaking above glumes; lemma rounded on back, membranous, short bristly at base, minutely scabrous and awned near tip, obscurely 3–5-veined, awn straight, flexible; palea ± = lemma.
3 species: temperate Europe, Asia. Cult for revegetation. (Greek: not maimed, alluding to occasional presence of vestigial florets) [Allred 2007 FNANM 25:788–789]

Key to Apera

1. Inflorescence branches ascending, spikelet-bearing to near base; anthers 0.3–0.5 mm ..... A. interrupta

1' Inflorescence branches spreading, naked near base; anthers 1–2 mm ..... A. spica-venti

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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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