Jepson eFlora: Taxon page
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]. 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: 10--11 genera, 60--70 species: western North America.
eFlora Treatment Author: J. Chris Pires, except as noted
Scientific Editor: Dale W. McNeal, Thomas J. Rosatti, Bruce G. Baldwin.
Genus: DichelostemmaView DescriptionDichotomous Key

Habit: 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.
Species In Genus: 5 species: western United States, especially northern California, northern Mexico. Etymology: (Greek: toothed crown, from perianth appendages)
eFlora Treatment Author: J. Chris Pires & Glenn Keator
Reference: Keator 1992 Four Seasons 9:24--39
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
Synonyms: Brevoortia ida-maia Alph. Wood; Brevoortia coccinea (A. Gray) S. Watson; Brodiaea coccinea A. Gray; Brodiaea ida-maia (Alph. Wood) Greene
Jepson eFlora Author: J. Chris Pires & Glenn Keator
Reference: Keator 1992 Four Seasons 9:24--39
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Botanical illustration including Dichelostemma ida-maia

botanical illustration including Dichelostemma ida-maia


Citation for this treatment: J. Chris Pires & Glenn Keator 2012, Dichelostemma ida-maia, in Jepson Flora Project (eds.) Jepson eFlora,, accessed on November 19, 2019.

Citation for the whole project: Jepson Flora Project (eds.) 2019, Jepson eFlora,, accessed on November 19, 2019.

Dichelostemma ida-maia
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© 2008 Steve Matson
Dichelostemma ida-maia
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© 2015 Julie Kierstead Nelson
Dichelostemma ida-maia
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© 2014 California Academy of Sciences
Dichelostemma ida-maia
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© 2015 Larry Blakely
Dichelostemma ida-maia
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© 2018 Julie Kierstead Nelson
Dichelostemma ida-maia
click for enlargement
© 2008 Steve Matson

More photos of Dichelostemma ida-maia in CalPhotos

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).


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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.