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Dichelostemma capitatum subsp. capitatum

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
Species: Dichelostemma capitatumView Description 

Common Name: BLUE DICKS
Leaf: 2--3, 10--70 cm, +- keeled. Inflorescence: umbel-like, dense; scape 5--70 cm; bracts wide-lanceolate. Flower: perianth blue, blue-purple, pink-purple, or white, tube 3--12 mm, narrow-cylindric to short-bell-shaped, lobes generally ascending, 7--12 mm, crown erect, leaning toward anthers, outward at tip, 4--6 mm, lanceolate, deep-notched, white; stamens 6, smaller 3 on outer perianth parts, outer filaments wider than inner at base, outer anthers 2--3 mm, inner anthers 3--4 mm; ovary sessile 4--8 mm, style 4--8 mm.

Dichelostemma capitatum (Benth.) Alph. Wood subsp. capitatum
Inflorescence: bracts generally dark purple (paler, striped dark purple); pedicels 1--15 mm, generally < bracts; flowers 6--15. Flower: perianth lobes generally ascending. Chromosomes: n=9,18,27,36,45.
Ecology: Open woodland, scrub, desert, grassland; Elevation: < 2300 m. Bioregional Distribution: CA; Distribution Outside California: to Oregon, northern Mexico. Flowering Time: Mar--Jun
Synonyms: Brodiaea capitata Benth. var. insularis (Greene) J.F. Macbr.; Brodiaea insularis Greene; Dichelostemma insulare (Greene) Burnham; Dichelostemma lacuna-vernalis L.W. Lenz; Dipterostemon insularis (Greene) Rydb.; Dichelostemma capitatum subsp. lacuna-vernalis (L.W. Lenz) D.W. Taylor;
eFlora Treatment Author: J. Chris Pires & Glenn Keator
Reference: Keator 1992 Four Seasons 9:24--39
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botanical illustration including Dichelostemma capitatum subsp. capitatum


Citation for this treatment: J. Chris Pires & Glenn Keator 2012, Dichelostemma capitatum subsp. capitatum, in Jepson Flora Project (eds.) Jepson eFlora,, accessed on October 22, 2018.

Citation for the whole project: Jepson Flora Project (eds.) 2018, Jepson eFlora,, accessed on October 22, 2018.

Dichelostemma capitatum subsp. capitatum
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© 2018 Barry Breckling
Dichelostemma capitatum subsp. capitatum
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© 2016 Steve Matson
Dichelostemma capitatum subsp. capitatum
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© 2008 Neal Kramer
Dichelostemma capitatum subsp. capitatum
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© 2014 Neal Kramer
Dichelostemma capitatum subsp. capitatum
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© 2010 Thomas Stoughton
Dichelostemma capitatum subsp. capitatum
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© 2008 Keir Morse

More photos of Dichelostemma capitatum subsp. capitatum in CalPhotos

Geographic subdivisions for Dichelostemma capitatum subsp. capitatum:
Markers link to CCH specimen records. Yellow markers indicate records that may provide evidence for eFlora range revision or may have georeferencing or identification issues. Purple markers indicate specimens collected from a garden, greenhouse, or other non-wild location.
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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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.