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BRASSICACEAE (Cruciferae) MUSTARD FAMILY

Ihsan A. Al-Shehbaz, except as noted

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.
± 330 genera, 3780 species: worldwide, especially temperate. [Al-Shehbaz et al. 2006 Plant Syst Evol 259:89–120] 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 North Coast Ranges, Carrichtera annua (L.) DC. in South Coast, Iberis sempervirens L., Iberis umbellata L. in Peninsular Ranges, Teesdalia coronopifolia (Bergeret) Thell., Teesdalia nudicaulis (L.) W.T. Aiton in southern Outer North Coast Ranges, Central Coast. Cardaria, Coronopus moved to Lepidium; Caulostramina to Hesperidanthus; Guillenia to Caulanthus; Heterodraba to Athysanus; California taxa of Lesquerella to Physaria; Malcolmia africana to Strigosella. —Scientific Editors: Douglas H. Goldman, Bruce G. Baldwin.

Key to Brassicaceae

ERUCASTRUM
Annual (subshrub); hairs simple. Leaf: basal petioled, rosetted or not, pinnately lobed; cauline petioled or sessile, not basally lobed. Inflorescence: bracted throughout or only basally. Flower: sepals erect, linear to oblong, bases not sac-like; petals yellow or white. Fruit: silique, linear, cylindric or ± 4-sided, dehiscent, segmented, generally narrowed between seeds; terminal segment seedless; stigma entire or 2-lobed. Seed: in 1 row, oblong to ovoid, plump; wing 0.
19 species: Mediterranean, Eurasia, Africa. (Latin: resembling Eruca)

E. gallicum (Willd.) O.E. Schulz
WAIF
Annual, biennial; hairs stiff, recurved. Stem: simple to many-branched, 0.9–6.5(8) dm. Leaf: basal, proximal cauline deeply pinnately lobed, 3–28 cm, lobe margins crenate, dentate or lobed; cauline similar, distal reduced. Inflorescence: open; bracted, proximal bracts leaf-like. Flower: sepals 3–5 mm; petals 4–8 mm, white or yellow. Fruit: 1–4.5 cm, 1–2(2.5) mm wide; terminal segment 1.5–4 mm; style 1–3 mm; pedicel ascending to spreading, (3)5–10(20) mm. Seed: 1.1–1.5 mm, oblong.
2n=30. Disturbed areas, fields; < 2000 m. s San Francisco Bay Area (Santa Clara Valley); North America; native to Europe. Mar–Sep [Online Interchange]

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Citation for the whole project: Jepson Flora Project (eds.) 2013. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on Apr 17 2014
Citation for this treatment: [Author of taxon treatment] 2012. Erucastrum, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=25059, accessed on Apr 17 2014

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Bioregions in which Erucastrum gallicum occurs Markers link to CCH specimen records. If the markers are obscured, reload the page [or change window size and reload]. Yellow markers indicate records that may provide evidence for eFlora range revision or may have georeferencing or identification issues.
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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.