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Vascular Plants of California
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Dichelostemma ida-maia

Higher Taxonomy
Family: ThemidaceaeView DescriptionDichotomous Key
Habit: Perennial herb from corm, outer coat fibrous [membranous]; daughter corms formed at stem base above corm of previous year, cormlets formed at base of corms or on short stolons. 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[10], 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.
Genera In Family: 13 genera, 70--80 species: western North America.
eFlora Treatment Author: J. Chris Pires & Robert E. Preston, except as noted
Scientific Editor: Dale W. McNeal, Thomas J. Rosatti, Bruce G. Baldwin.
Genus: DichelostemmaView DescriptionDichotomous Key

Habit: Cormlets 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 on outer lobes at junction of tube, forming crown; staminodes 0 (3, stamen-like); stamens 3, equal, anthers attached at base; style 1, stigma weakly 3-lobed. Fruit: generally sessile, generally ovoid, 3-angled. Seed: sharp-angled, black-crusted.
Etymology: (Greek: toothed crown, from perianth appendages)
eFlora Treatment Author: J. Chris Pires, Glenn Keator & Robert E. Preston
Reference: Keator 1992 Four Seasons 9:24--39; Mabberley 2015 Madroño 62:137--138
Dichelostemma ida-maia (Alph. Wood) Greene
Leaf: 3--5, 30--50 cm, glaucous, keeled. Inflorescence: umbel-like, open; scape 30--100 cm; bracts lanceolate, +- red; pedicels 1--5 cm; flowers 6--20 (nodding in flower, erect in fruit). Flower: perianth tube 20--27 mm, cylindric, red, with 6 sac-like swellings on lower 1/3, lobes recurved, erect in fruit, 7--9 mm, yellow-green, crown erect, 3--4 mm, entire, rounded, inrolled, +- white; stamens 3, anthers 6--8 mm; ovary 7--12 mm, narrow-ovoid, stalk 3--6 mm, style 7--20 mm. Chromosomes: n=24.
Ecology: Forest edges, grassland; Elevation: < 2000 m. Bioregional Distribution: NW; Distribution Outside California: southwestern Oregon. Flowering Time: May--Jul Note: Hybrids with D. multiflorum have been called D. venustum (Greene) Hoover.
Synonyms: Brevoortia ida-maia Alph. Wood; Brevoortia coccinea (A. Gray) S. Watson; Brodiaea coccinea A. Gray; Brodiaea ida-maia (Alph. Wood) Greene; Rhytidea bicolor Lindl.
Jepson eFlora Author: J. Chris Pires, Glenn Keator & Robert E. Preston
Reference: Keator 1992 Four Seasons 9:24--39; Mabberley 2015 Madroño 62:137--138
Index of California Plant Names (ICPN; linked via the Jepson Online Interchange)

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Citation for this treatment: J. Chris Pires, Glenn Keator & Robert E. Preston 2019, Dichelostemma ida-maia, in Jepson Flora Project (eds.) Jepson eFlora, Revision 7,, accessed on April 16, 2024.

Citation for the whole project: Jepson Flora Project (eds.) 2024, Jepson eFlora,, accessed on April 16, 2024.

Dichelostemma ida-maia
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©2014 California Academy of Sciences
Dichelostemma ida-maia
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©2008 Neal Kramer
Dichelostemma ida-maia
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©2009 Gary A. Monroe
Dichelostemma ida-maia
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©2008 Steve Matson
Dichelostemma ida-maia
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©2015 Julie Kierstead Nelson

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Geographic subdivisions for Dichelostemma ida-maia:
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map of distribution 1
(Note: any qualifiers in the taxon distribution description, such as 'northern', 'southern', 'adjacent' etc., are not reflected in the map above, and in some cases indication of a taxon in a subdivision is based on a single collection or author-verified occurence).


Data provided by the participants of the  Consortium of California Herbaria.
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All markers link to CCH specimen records. The original determination is shown in the popup window.
Blue markers indicate specimens that map to one of the expected Jepson geographic subdivisions (see left map). Purple markers indicate specimens collected from a garden, greenhouse, or other non-wild location.
Yellow markers indicate records that may provide evidence for eFlora range revision or may have georeferencing or identification issues.

CCH collections by month

Duplicates counted once; synonyms included.
Species do not include records of infraspecific taxa, if there are more than 1 infraspecific taxon in CA.
Blue line denotes eFlora flowering time (fruiting time in some monocot genera).