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: JEWELFLOWER
Habit: Annual to perennial herb, generally +- glaucous; hairs simple or 0. Leaf: basal rosetted or not, petioled, entire or dentate to pinnately lobed or divided; cauline sessile, occasionally petioled, base generally lobed or clasping. Inflorescence: elongated. Flower: radial or bilateral; calyx urn- or occasionally bell-shaped, sepals erect, base +- sac-like, keeled or not; petal blade narrower to wider than proximal 1/2, generally channeled, margins +- crinkled or not; stamens in 3 pairs of unequal length, or 4 long and 2 short, longest filaments fused or free. Fruit: silique, dehiscent, linear, flat parallel to septum, unsegmented; stigma entire or 2-lobed. Seed: 10--120, in 1 row, generally winged.
Species In Genus: 35 species: southwestern United States, northern Mexico. Etymology: (Greek: twisted flower, from wavy-margined petals)
Habit: Perennial herb, caudex simple or branched, glaucous, generally glabrous. Stem: (1)3--9(11) dm, simple or few-branched. Leaf: basal rosetted, spoon-shaped to narrowly oblanceolate; petiole ciliate, broadly winged; mid-cauline sessile, 2--9 cm, 0.7--4.5(6) cm wide, broadly oblong to ovate or +- round to lanceolate, entire or few-toothed, base lobed to clasping; distal reduced. Inflorescence: open; terminal sterile flower cluster 0. Flower: calyx bell-shaped, sepals 5--12 mm, broadly oblong, not keeled, +- green-brown to purple, tips hairy or not; petals 9--15 mm, 0.7--1 mm wide, not crinkled, purple to +- brown; filaments free, in 3 pairs of unequal length, longest pair 7.5--10 mm; anthers all fertile, 2.5--5 mm. Fruit: ascending to +- spreading, 5--10.5(14.5) cm, (2.5)3--6(7) mm wide, straight, not constricted between seeds; valves glabrous, midvein distinct; stigma +- unlobed to 2-lobed; pedicels spreading-ascending, 3--11(14) mm. Seed: 20--38(46), 2.5--5 mm, broadly oblong to +- round; wing 0.1--0.9 mm wide, continuous.