|University of California, Berkeley|
|Directory News Site Map Home|
Key to families | Table of families and genera
This text currently parallels The Jepson Manual: Vascular Plants of California, Second Edition that is now available at the University of California Press.
Text appearing in blue on this page will not appear in the printed book; it will be displayed only on the Web. 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.
Perennial from rhizomes.
Stem: decumbent to erect, sometimes rooting at nodes.
Leaf: basal and cauline; sheath open ± to base; ligule thinly membranous, acute to obtuse, sometimes toothed.
Inflorescence: panicle-like; lower branches reflexed to erect.
Spikelet: bisexual; glumes < lowest floret, lower glume generally 1-veined, upper generally 3-veined; florets 2–8; lemma firm, back rounded, scabrous, margin near tip entire to scabrous-serrate at 10×, prominently (5)7–9-veined, veins not converging at tip; awn 0; palea ± = lemma.
± 5 species: temperate North America, e Asia. (J. Torrey, Am botanist, 1796–1873) Plants generally occurring in freshwater wet habitats.
Unabridged references: [Davis 2007 FNANM 24:607–609, 1991 Phytologia 70:361–365]
1. Infl linear to narrowly elliptic in outline, length 5–19 × width, < 1 cm wide; leaf blade 3.4–7 mm wide ..... T. erecta
1' Infl ovate to elliptic or obovate in outline, length 1–6(7.5) × width, (1)2–14 cm wide; leaf blade 3.6–18 mm wide ..... T. pallida var. pauciflora
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].
We encourage links to these pages, but the content may not be downloaded for reposting, repackaging, redistributing, or sale in any form, without written permission from The Jepson Herbarium.