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Thelypodium crispum

Higher Taxonomy
Family: Brassicaceae (Cruciferae)View DescriptionDichotomous Key

Habit: Annual to shrub; sap pungent, watery. Leaf: generally simple, alternate; generally both basal, cauline; stipules 0. Inflorescence: generally raceme, generally not bracted. Flower: bisexual, generally radial; sepals 4, generally free; petals (0)4, forming a cross, generally white or yellow to purple; stamens generally 6 (2 or 4), 4 long, 2 short (3 pairs of unequal length); ovary 1, superior, generally 2-chambered with septum connecting 2 parietal placentas; style 1, stigma entire or 2-lobed. Fruit: capsule, generally 2-valved, "silique" (length >= 3 × width) or "silicle" (length < 3 × width), dehiscent by 2 valves or indehiscent, cylindric or flat parallel or perpendicular to septum, segmented or not. Seed: 1--many, in 1 or 2 rows per chamber, winged or wingless; embryo strongly curved.
Genera In Family: +- 330 genera, 3780 species: worldwide, especially temperate. Note: Highest diversity in Mediterranean area, mountains of southwestern Asia, adjacent central Asia, western North America; some Brassica species are oil or vegetable crops; Arabidopsis thaliana used in experimental molecular biology; many species are ornamentals, weeds. Aurinia saxatilis (L.) Desvaux in cultivation only. Aubrieta occasional waif in central NCoR, Carrichtera annua (L.) DC. in SCo, Iberis sempervirens L., Iberis umbellata L. in PR, Teesdalia coronopifolia (Bergeret) Thell., Teesdalia nudicaulis (L.) W.T. Aiton in southern NCoRO, CCo. Cardaria, Coronopus moved to Lepidium; Caulostramina to Hesperidanthus; Guillenia to Caulanthus; Heterodraba to Athysanus; California taxa of Lesquerella to Physaria; Malcolmia africana to Strigosella.
eFlora Treatment Author: Ihsan A. Al-Shehbaz, except as noted
Scientific Editor: Douglas H. Goldman, Bruce G. Baldwin.
Genus: ThelypodiumView DescriptionDichotomous Key

Habit: Annual to perennial herb; hairs 0 or simple. Leaf: basal rosetted, petioled, entire to pinnately lobed; mid-cauline petioled or sessile, base lobed to sagittate or wedge-shaped. Flower: sepals erect to reflexed, bases sac-like or not; petals linear to oblanceolate, spoon-shaped, or obovate, clawed or not, white to lavender or purple; stamens free (+- fused). Fruit: silique, dehiscent, linear, unsegmented, +- narrowed between seeds, cylindric or +- flat parallel to septum, stalked above receptacle; stigma entire. Seed: 1 row per chamber, +- flat; wing generally 0.
Species In Genus: 16 species: western North America. Etymology: (Greek: female foot, from fruit stalk above receptacle)

Thelypodium crispum Greene ex Payson
Habit: Biennial, generally glaucous. Stem: 1--7(12) dm; hairs 0 or toward base. Leaf: basal blade 2--15(25) cm, dentate to pinnately lobed (entire), withered by fruit time, petiole ciliate; mid-cauline sessile, base lobed or sagittate, entire or dentate. Inflorescence: dense. Flower: petals 6--11(14.5) mm, 0.5--0.7(1) mm wide, linear to narrowly oblanceolate, white to pale lavender, crinkled. Fruit: 1--2.5(4) cm, 0.7--1(1.8) mm wide, cylindric, narrowed between seeds; stalk above receptacle 0.5--1.5(3.5) mm, slender; style 0.5--1.5(2.5) mm; pedicel erect to erect-ascending, partly or fully appressed, 2--5(10) mm, slender. Seed: 22--50, 1--1.5 mm, plump. Chromosomes: 2n=26.
Ecology: Alkaline or sandy soils, lake margins, scrub; Elevation: 1200--3000 m. Bioregional Distribution: SNH, GB; Distribution Outside California: Nevada. Flowering Time: Jun--Aug
eFlora Treatment Author: Ihsan A. Al-Shehbaz
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botanical illustration including Thelypodium crispum


Citation for this treatment: Ihsan A. Al-Shehbaz 2017. Thelypodium crispum, in Jepson Flora Project (eds.) Jepson eFlora,, accessed on February 25, 2017.

Citation for the whole project: Jepson Flora Project (eds.) 2017. Jepson eFlora,, accessed on February 25, 2017.

Thelypodium crispum
click for enlargement
© 2007 Steve Matson
Thelypodium crispum
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© 2001 Larry Blakely
Thelypodium crispum
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© 2010 Neal Kramer
Thelypodium crispum
click for enlargement
© 2001 Larry Blakely
Thelypodium crispum
click for enlargement
© 2010 Neal Kramer
Thelypodium crispum
click for enlargement
© 2010 Steve Matson

More photos of Thelypodium crispum in CalPhotos

Geographic subdivisions for Thelypodium crispum:
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.
Blue line denotes eFlora flowering time.