Jepson Flora Project: Jepson Interchange    

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Jepson Interchange (more information)
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Reed C. Rollins, except as specified

Annual to subshrub
Leaves generally basal and cauline, alternate, generally simple; stipules 0
Inflorescence: generally raceme
Flower bisexual; sepals 4, free; petals (0)4, free, generally white or yellow, often clawed; stamens generally (2,4)6, generally 4 long, 2 short; ovary 1, superior, chambers generally 2, septum membranous, connecting 2 parietal placentas, style 1, stigma simple or 2-lobed
Fruit: generally capsule ("silique") with 2 deciduous valves, sometimes breaking transversely or indehiscent
Seeds 1–many per chamber
Genera in family: 300+ genera, 3000+ species: worldwide, especially cool regions; some cultivated for food (especially Brassica, Raphanus ) and ornamental
Recent taxonomic note: Recently treated to include Capparaceae [Rodman et al. 1993 Ann Missouri Bot Gard 80:686–699; Rollins 1993 Cruciferae of Continental North America. Stanford Univ Press]
Family description, key to genera by Robert A. Price.


Annual; hairs 0 or sparse, minute, branched
Inflorescence open; bracts 0
Flower: petals white
Fruit ± elliptic, ± flat perpendicular to septum; wing 0; notch 0
Seeds several per chamber; wing 0; embryonic root at back of 1 cotyledon
Species in genus: 3 species: Eur, 1 apparently native in North America as well
Etymology: (E. Hutchins, Irish botanist, 1785–1815)


H. procumbens (L.) Desv.

Stem ± decumbent to ± erect, (3)5–10(15) cm, many-branched
Leaves: basal and lower cauline petioled, 5–20 mm, obovate, entire to lobed; upper leaves fewer, sessile, reduced
Flower: sepals ± 1 mm; petals ± 1 mm, obovate or narrower
Fruit 2.5–3.5 mm, elliptic to ± obovate; valve veins prominent, netted; style < 0.2 mm
Chromosomes: 2n=12
Ecology: Alkali flats, saline seeps, shaded sites, sagebrush, juniper woodland
Elevation: < 2600 m.
Bioregional distribution: California (except Klamath Ranges, High Sierra Nevada)
Distribution outside California: to British Columbia, Labrador, Baja California, also Europe
Flowering time: Mar–Jul

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bioregional map for HUTCHINSIA%20procumbens being generated
YOU CAN HELP US make sure that our distributional information is correct and current. If you know that a plant occurs in a wild, reproducing state in a Jepson bioregion NOT highlighted on the map, please contact us with that information. Please realize that we cannot incorporate range extensions without access to a voucher specimen, which should (ultimately) be deposited in an herbarium. You can send the pressed, dried collection (with complete locality information indicated) to us (e-mail us for details) or refer us to an accessioned herbarium specimen. Non-occurrence of a plant in an indicated area is difficult to document, but we will especially value your input on those types of possible errors (see automatic conversion of distribution data to maps).

Retrieve Jepson Interchange Index to Plant Names entry for Hutchinsia procumbens
Retrieve dichotomous key for Hutchinsia
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