Difference between revisions of "Aristida californica"
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name=Aristida californica | name=Aristida californica | ||
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|authority=Thurb. | |authority=Thurb. | ||
|rank=species | |rank=species | ||
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|basionyms= | |basionyms= | ||
|family=Poaceae | |family=Poaceae | ||
+ | |illustrator=Linda A. Vorobik;Andy Sudkamp | ||
+ | |illustration copyright=Utah State University | ||
|distribution=Calif.;Ariz. | |distribution=Calif.;Ariz. | ||
|reference=None | |reference=None | ||
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|publication year= | |publication year= | ||
|special status= | |special status= | ||
− | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/200273ad09963decb8fc72550212de541d86569d/coarse_grained_fna_xml/V25/V25_986.xml |
|subfamily=Poaceae subfam. Aristidoideae | |subfamily=Poaceae subfam. Aristidoideae | ||
|tribe=Poaceae tribe Aristideae | |tribe=Poaceae tribe Aristideae |
Latest revision as of 17:59, 11 May 2021
Plants perennial; sometimes flowering the first year. Culms 10-40 cm, highly branched above the base in age; internodes glabrous or pubescent, sometimes nearly lanose. Leaves cauline; sheaths shorter than the internodes, glabrous or puberulent; collars glabrous or pubescent at the sides; ligules 0.5-1 mm; blades usually less than 6 cm long, 0.5-1 mm wide, pale green, involute, glabrous or puberulent abaxially. Inflorescences paniculate or racemose, 5-10 cm long, 1-2 cm wide, with few spikelets; rachis nodes glabrous or with straight hairs; primary branches 1-2 cm, appressed, without axillary pulvini. Spikelets appressed. Glumes unequal, 1-2-veined; lower glumes 4-10 mm; upper glumes 7-15 mm; calluses about 1 mm; lemmas 5-7 mm, purple or mottled, junction of the lemma and awns evident; awns twisted together basally into a 4-26 mm column, free portions 12-50 mm, those of the central and lateral awns similar in length, curved to arcuate basally, straight and divergent distally, disarticulating at the base of the column at maturity; anthers 3, about 2 mm long. 2n = 22.
Distribution
Calif., Ariz.
Discussion
The range of both varieties of Aristida californica extends from the southwestern United States into northwestern Mexico.
Selected References
None.
Key
1 | Cauline internodes puberulent to nearly lanose | Aristida californica var. californica |
1 | Cauline internodes glabrous | Aristida californica var. glabrata |