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: LACEPOD, FRINGEPOD
Habit: Annual; hairs 0 or simple. Leaf: simple, sessile, entire, dentate, or pinnately lobed; middle, distal cauline clasping, lobed or not. Inflorescence: open (dense). Flower: sepals ascending, base not sac-like; petals +- >= sepals, white or +- purple-tinged, not clawed; fertile anthers yellow or generally purple (flowers occasionally with whitish or yellowish infertile anthers). Fruit: indehiscent, pendent, elliptic to ovate or round, unsegmented, over-seed (i.e., excluding wing) generally plano-convex; septum 0; wing generally not incurved toward over-seed flat side, entire, wavy-margined, crenate, perforated, or divided into spoon-shaped lobes, rays (radiating veins) present or not, generally +- indistinct; stigma entire. Seed: 1, elliptic to round, wingless.
Species In Genus: 6 species: western North America. Etymology: (Greek: fringe fruit)
eFlora Treatment Author: Ihsan A. Al-Shehbaz & Thomas J. Rosatti
Habit: Plant hairy at least proximally (glabrous). Stem: 1--6(8) dm. Leaf: basal 1--6(13) cm, oblanceolate to obovate, subentire to wavy-dentate; cauline lanceolate, bases lobed, clasping. Inflorescence: raceme open. Flower: fertile anthers purple, rarely some flowers with whitish or yellowish infertile anthers. Fruit: 3--6(9) mm wide, obovate to +- round, hairs 0 or 0.2--0.4 mm, club-shaped; wing flat or +- incurved toward over-seed convex side, entire, crenate, with spoon-shaped lobes, or perforated, rays 0.2--0.5 mm wide (0); proximal pedicels recurved in a continuous arc, 3--7(12) mm. Chromosomes: 2n=28.
Note: Intermediates between subspecies common.