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: PERENNIAL, SHORTPOD, or SUMMER MUSTARD
Etymology: (C.C.L. Hirschfeldt, Austrian horticulturist, 1742--1792) Note: Generic status uncertain, possibly best included in Erucastrum or expanded Brassica. eFlora Treatment Author: Ihsan A. Al-Shehbaz
Hirschfeldia incana (L.) Lagr.-Fossat
NATURALIZED Habit: Annual to perennial herb; hairs simple. Stem: (2)4--15(20) dm, hairs reflexed. Leaf: basal rosetted, pinnately lobed, (3)5--25(40) cm, obovate to lanceolate; lateral lobes 1--6(9) pairs; cauline dentate to pinnately lobed, petioled or sessile, base not lobed. Inflorescence: much elongated. Flower: sepals spreading to reflexed, base not sac-like; petals obovate, yellow, clawed. Fruit: silique, dehiscent, erect, appressed, 0.7--1.5(1.7) cm, 1--1.7 mm wide, cylindric, segmented, glabrous (sparsely hairy); valves obscurely 3(7)-veined; terminal segment 3--6 mm, 1--2-seeded; pedicel erect, 2--4(5) mm, stout. Seed: 10--22, in 1 row, 0.9--1.5 mm, ovoid; wing 0. Chromosomes: 2n=14. Ecology: Disturbed areas; Elevation: < 2000 m. Bioregional Distribution: NCo, KR, NCoRI, CaR, SNF, GV, CW, SCo, PR, DMoj; Distribution Outside California: Oregon, Nevada; native to Mediterranean. Flowering Time: Apr--Oct Unabridged Synonyms: Brassica geniculata (Desf.) Benth. Jepson eFlora Author: Ihsan A. Al-Shehbaz Index of California Plant Names (ICPN; linked via the Jepson Online Interchange) View the CDFA Pest Rating page for Hirschfeldia incana Weed listed by Cal-IPC Previous taxon: Hirschfeldia Next taxon: Hornungia
Botanical illustration including Hirschfeldia incana
Citation for this treatment: Ihsan A. Al-Shehbaz 2012, Hirschfeldia incana, in Jepson Flora Project (eds.) Jepson eFlora, https://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=28295, accessed on October 06, 2024.
Citation for the whole project: Jepson Flora Project (eds.) 2024, Jepson eFlora, https://ucjeps.berkeley.edu/eflora/, accessed on October 06, 2024.
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Duplicates counted once; synonyms included.
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