|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
Daughter corms generally sessile. Leaf: 2–5, generally keeled, entire, glabrous, occasionally withered by flowering. Inflorescence: raceme- or umbel-like, generally dense; scape generally curved, twisted, or twining, cylindric; bracts ± papery; pedicels generally < flowers. Flower: perianth tube cylindric to bell-shaped, appendages at junction of tube, lobes forming crown; staminodes 0 (3, stamen-like); stamens 3, equal, or 6, unequal, 3 smaller, filaments fused to perianth tube, forming crown-like tube outside anthers, anthers attached at base; style 1, stigma weakly 3-lobed. Fruit: generally sessile, generally ovoid, 3-angled. Seed: sharp-angled, black-crusted.Key to Dichelostemma
5 species: western United States, especially northern California, northern Mexico. (Greek: toothed crown, from perianth appendages) [Keator 1992 Four Seasons 9:24–39]
Leaf: 3–4, 4–35 cm, ± glaucous, keeled. Inflorescence: raceme-like, dense; scape 30–90 cm, ± scabrous; bracts wide-lanceolate, pale purple to green; pedicels 1–6 mm; flowers 6–15. Flower: perianth blue-purple, tube 8–10 mm, narrow-ovoid, ± narrowed above ovary, lobes ascending, 8–10 mm, crown erect, leaning away from anthers, 5–6 mm, narrow-lanceolate, deep-notched, ± purple; stamens 3, anthers 4–5 mm; ovary sessile 4–6 mm, style 5–6 mm.
n=9,18. Open woodland, grassland; < 2000 m. Northwestern California, Cascade Range, n Sierra Nevada, San Francisco Bay Area; to British Columbia. Apr–Jun [Online Interchange]
Previous taxon: Dichelostemma capitatum subsp. pauciflorum
Next taxon: Dichelostemma ida-maia
Citation for the whole project: Jepson Flora Project (eds.) 2013. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on Dec 13 2013
Citation for this treatment: [Author of taxon treatment] 2012. Dichelostemma, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=22850, accessed on Dec 13 2013
Copyright © 2013 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.
See CalPhotos for additional images
© 2008 Keir Morse
|Bioregions in which Dichelostemma congestum occurs||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.|
Chart based on elevation range in eFlora and elevations and coordinates of CCH records.
Data provided by the participants of the Consortium of California Herbaria.
Note: About half of the CCH records include both elevation and coordinates.
| Data provided by the participants of the Consortium of California Herbaria.
View all CCH records
CCH collections by month