|University of California, Berkeley|
|Jepson eFlora: Taxon page
Key to families | Table of families and genera
Index to accepted names and synonyms:
| A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z |
|Family: Poaceae (Gramineae)||View Description||Dichotomous Key|
|Genus:||View Description||Dichotomous Key|
|Species:||View Description||Dichotomous Key|
Habit: Annual. Stem: tufted, glabrous to puberulent. Leaf: +- basal; collar glabrous to puberulent; ligule < 1 mm, membranous; blade 0.3--14 cm, 0.3--2.5 mm wide, flat to rolled, upper generally much reduced. Inflorescence: panicle-like, open to dense. Spikelet: bisexual, laterally compressed, 1.5--4 mm; glumes > lower floret, translucent, keel scabrous; callus short-bristly; axis breaking above glumes and between florets; florets 2, fertile; lemma faintly 5-veined, generally glabrous, tip with 2 slender teeth, slightly scabrous, awned at or below middle, awn bent once or straight, exserted (occasionally reduced or 0 in lower floret) or straight; palea slightly < lemma; anthers 3.
Species In Genus: 8 species: southern Europe, Mediterranean, Africa, western Asia. Etymology: (Greek: a weedy grass, perhaps a Lolium) Note: Aira cupaniana Guss. [Aira caryophyllea var. cupaniana (Guss.) Fiori] was collected in Contra Costa Co. in 1995, but does not appear to have persisted.
eFlora Treatment Author: James P. Smith, Jr. & Dieter H. Wilken
Jepson Online Interchange
Key to AiraPrevious taxon: Agrostis variabilis
Next taxon: Aira caryophyllea
Citation for this treatment: James P. Smith, Jr. & Dieter H. Wilken 2016. Aira, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=10112, accessed on October 23, 2016.
Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on October 23, 2016.