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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, 30–85 cm, glaucous, unkeeled. Inflorescence: umbel-like, dense; scape 20–90 cm, scabrous; bracts 7–12 mm, ovate, acuminate, streaked purple; pedicels 3–15 mm; flowers 6–35, erect. Flower: perianth pink- to blue-purple, tube 8–10 mm, ± cylindric, narrowed above ovary, tough, persistent in fruit, lobes spreading, 8–10 mm, crown erect, arching inward toward anthers, outward at tip, 5–6 mm, truncate to rounded, entire to minute-dentate, inrolled, white or pale purple; stamens 3, anthers 4–5 mm; ovary sessile, 4–6 mm, spheric, style 5–8 mm.
n=9,18,27; 2n=45. Foothill grassland, open woodland, scrub; < 2000 m. Northwestern California, n&c Sierra Nevada, Sacramento Valley, San Francisco Bay Area (uncommon), Modoc Plateau; southwestern Oregon. May–Jun [Online Interchange]
Previous taxon: Dichelostemma ida-maia
Next taxon: Dichelostemma volubile
Citation for the whole project: Jepson Flora Project (eds.) 2013. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on Dec 8 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=22853, accessed on Dec 8 2013
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© 2002 Christina Raving
|Bioregions in which Dichelostemma multiflorum 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.
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