|University of California, Berkeley|
|Jepson eFlora: Taxon page
Key to families | Table of families and genera
Index to accepted names and synonyms:
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|Family: Poaceae (Gramineae)||View Description||Dichotomous Key|
|Genus: Tridens||View Description||Dichotomous Key|
|Species:||View Description||Dichotomous Key|
Tridens muticus (Torr.) Nash var. muticus
Habit: Plant tufted, shortly rhizomatous. Stem: generally 20--50 cm. Leaf: sheath hairy, especially near collar; ligule short-hairy; blade 3--25 cm, 1--4 mm wide, generally inrolled, +- fine scabrous, sometimes sparsely hairy. Inflorescence: 4--20 cm, 3--8 mm wide, narrow; branches short, appressed; spikelets subsessile to short-stalked. Spikelet: 8--13 mm, +- cylindric; glumes 3--10 mm, lower 1--3-veined, upper glume 1-veined; florets 5--11, strongly overlapping, pale to light purple; callus densely hairy; lemma 3--7 mm, generally purple-tinged, veins densely hairy below middle, tip entire to minutely notched; palea margins hairy, < lemma. Chromosomes: 2n=40.
Ecology: Dry, rocky, generally limestone soils, creosote-bush scrub, pinyon/juniper woodland; Elevation: < 2000 m. Bioregional Distribution: ne PR, D; Distribution Outside California: southwestern and south-central United States, northern Mexico. Flowering Time: Apr--May, Oct--Nov
eFlora Treatment Author: James P. Smith, Jr.
Jepson Online Interchange
Previous taxon: Tridens
Next taxon: Trisetum
Citation for this treatment: James P. Smith, Jr. 2016. Tridens muticus var. muticus, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=67245, accessed on May 05, 2016.
Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on May 05, 2016.