|University of California, Berkeley|
|Directory News Site Map Home|
|Jepson eFlora: Taxon page
Key to families | Table of families and genera
Indexes to all 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 |
Perennial herb from corm, outer coat fibrous [membranous]. Leaf: basal, 1–10, linear to narrow-lanceolate. Inflorescence: scapose, generally umbel-like; scape erect, generally 1(2), cylindric, generally rigid, occasionally wavy to twining; flower bracts 2–4, not enclosing flower buds. Flower: perianth parts 6 in 2 petal-like whorls, free or ± fused below into tube; staminodes 0 or 3; stamens 3 or 6, free or fused to perianth, occasionally appendaged; ovary superior, chambers 3, ovules 2–several per chamber. Fruit: capsule, loculicidal.
10–11 genera, 60–70 species: western North America. [Pires & Sytsma 2002 Amer J Bot 89:1342–1359] —Scientific Editors: Dale W. McNeal, Thomas J. Rosatti.
Key to Themidaceae
Corm spheric. Leaf: basal, linear, channeled. Inflorescence: scape straight; bracts 3, lanceolate; pedicels not jointed, erect. Flower: perianth parts 6 in 2 petal-like whorls, tube funnel-shaped, lobes narrow-oblong; stamens 6, filaments fused into nectar tube with erect toothed appendages forming crown between anthers, anthers attached near base; style persistent, stigma small, 3-lobed. Fruit: ± spheric, obtuse-3-angled. Seed: several per chamber, flat, black-crusted.
3 species: western United States, northern Mexico. (Greek: stamen crown, for appendages of fused filaments)
Previous taxon: Themidaceae
Next taxon: Androstephium breviflorum
Citation for the whole project: Jepson Flora Project (eds.) 2013. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on Jul 28 2015
Citation for this treatment: [Author of taxon treatment] 2013. Androstephium, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=9893, accessed on Jul 28 2015
Copyright © 2014 Regents of the University of California
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.
| Markers link to CCH specimen records. If the markers are obscured, reload the page [or change window size and reload]. Yellow markers indicate records that may provide evidence for eFlora range revision or may have georeferencing or identification issues.
READ ABOUT YELLOW FLAGS
View elevation by latitude chart
| Data provided by the participants of the Consortium of California Herbaria.
View all CCH records