Common Name: MUSTARD FAMILY 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.
Common Name: PEPPERGRASS, PEPPERCRESS Habit: Annual to perennial herb (shrub); hairs 0 or simple. Leaf: basal rosetted or not, petioled, entire, dentate, to 1--3-pinnately lobed; cauline short-petioled to sessile, base occasionally lobed to clasping. Inflorescence: elongated or congested. Flower: sepals erect or spreading, oblong to ovate, base not sac-like; petals linear to obovate, white or yellow (pink or purple), occasionally reduced or 0; stamens 2, 4, or 6. Fruit: silicle, generally dehiscent, oblong to ovate, obcordate, or round (spectacle-shaped), flat perpendicular to septum (inflated), unsegmented. Seed: 2(4), gelatinous when wet; wing narrow or 0. Etymology: (Greek: little scale, from fruit) eFlora Treatment Author: Ihsan A. Al-Shehbaz Reference: Al-Shehbaz et al. 2002 Novon 12:5--11 Unabridged Reference: Hitchcock 1936 Madroño 3:265--300
Lepidium latipes Hook.
NATIVE Habit: Annual, puberulent or stiff-hairy. Stem: erect decumbent, 1 or several from base, 0.2--1.5(3.8) dm, simple or branched. Leaf: basal not rosetted, early-deciduous, 2--10 cm, linear, entire, dentate, or pinnately divided into 2--10 lobe pairs; mid-cauline similar, smaller, entire, base tapered, not lobed. Inflorescence: compact, cylindric to head-like, elongated or not; rachis puberulent, hairs cylindric. Flower: sepals 1.1--1.4 mm, ovate; petals 1.9--3 mm, 0.8--1.3 mm wide, obovate-oblong, +- green, hairy abaxially, margin fringed; stamens 4. Fruit: 5--7 mm, 2.8--4 mm wide, oblong-ovate, tip winged, notch 1.4--2.8 mm; valve walls thick, with a mixture of long, much shorter hairs, strongly net-veined; style 0; pedicel 2.5--5 mm, strongly flattened, appressed, erect to +- ascending, puberulent throughout (only adaxially). Seed: 2--2.4 mm, oblong. Ecology: Alkaline soils, vernal pool margins, salt marsh edges, pastures; Elevation: < 700 m. Bioregional Distribution: NCo, NCoR, GV, CCo, SnFrB, SCoRI, SCo; Distribution Outside California: Baja California. Flowering Time: Mar--Jun Synonyms: Lepidium latipes var. heckardii Rollins Listed in CNPS Inventory; Lepidium latipes var. latipes Unabridged Note:Lepidium latipes var. heckardii differs from Lepidium latipes var. latipes solely on having stems elongated, simple at base (vs short and branched basally), but these 2 forms grow mixed in most populations. Jepson eFlora Author: Ihsan A. Al-Shehbaz Reference: Al-Shehbaz et al. 2002 Novon 12:5--11 Index of California Plant Names (ICPN; linked via the Jepson Online Interchange) Previous taxon: Lepidium latifolium Next taxon: Lepidium montanum
Citation for this treatment: Ihsan A. Al-Shehbaz 2012, Lepidium latipes, in Jepson Flora Project (eds.) Jepson eFlora, https://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=30545, accessed on April 18, 2024.
Citation for the whole project: Jepson Flora Project (eds.) 2024, Jepson eFlora, https://ucjeps.berkeley.edu/eflora/, accessed on April 18, 2024.
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