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FNA | Family List | FNA Vol. 7 | Brassicaceae | Physaria

49. Physaria lindheimeri (A. Gray) O’Kane & Al-Shehbaz, Novon. 12: 325. 2002.

Lindheimer’s bladderpod Lindheimer’s bladderpod

Vesicaria lindheimeri A. Gray, Boston J. Nat. Hist. 6: 145. 1850; Alyssum lindheimeri (A. Gray) Kuntze; Lesquerella gracilis (Hooker) S. Watson var. pilosa Lundell; L. lindheimeri (A. Gray) S. Watson

Annuals or biennials; with a fine taproot; densely pubescent, trichomes (sessile or short-stalked), 4-7-rayed, rays usually furcate at base, sometimes bifurcate, (rough-tuberculate throughout). Stems several from base, erect or outer decumbent, (often several-branched, branches slender and flexuous), to 8 dm. Basal leaves: blade pinnatisect to repand, 3-9(-14) cm, margins entire. Cauline leaves (sometimes secund, proximal usually petiolate, distal sessile); blade elliptic, 1-6 cm, (distal with cuneate base), margins entire or deeply dentate. Racemes dense. Fruiting pedicels (horizontal or recurved and ascending at tip, sometimes loosely sigmoid), (5-) 10-20 mm. Flowers: sepals elliptic to oblong, 3-5.5 mm, (median pair slightly thickened apically, cucullate); petals (sometimes drying slightly purplish), suborbicular or broadly ovate, 4.5-7(-9) mm, (narrowing gradually to short claw). Fruits globose or broadly ellipsoid, not or slightly inflated, (4-)5-8 mm, (smooth); valves (not retaining seeds after dehiscence), glabrous; replum as wide as or wider than fruit; ovules (8-)12-16(-20) per ovary; style (1.5-)2-3(-4) mm. Seeds flattened. 2n = 12.

Flowering Dec-Apr. Heavy, black, claylike soils, or lighter, sandy soils, thickets, field-margins, roadsides, coastal prairies; 20-800 m; Tex.; Mexico (Tamaulipas).


 

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