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Physaria engelmannii (A. Gray) O'Kane & Al-Shehbaz  

No occurrences found

Family: Brassicaceae
Engelmann's bladderpod
[Lesquerella engelmannii (A. Gray) S. Watson]
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  • FNA
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Steve L. O´Kane Jr. in Flora of North America (vol. 7)
Perennials; caudex simple or branched, (woody, aerial); densely pubescent, trichomes (sessile or short-stalked), several-rayed, rays simple or furcate, distinct or fused at base, (asymmetrical with deep notch on one side, often with a U-shaped gap between 2 of the rays, umbonate, strongly tuberculate). Stems few to several from base, erect, (usually unbranched), (1.5-)2.5-4(-6) dm. Basal leaves: blade elliptic to obovate, 2-6.5 cm, margins entire, sinuate, or remotely toothed, (surfaces occasionally sparsely pubescent). Cauline leaves: (proximal often petiolate, distal sessile or subsessile); blade oblanceolate to linear, 1-4 cm, margins entire. Racemes dense, (subumbellate). Fruiting pedicels (ascending), relatively short. Flowers: sepals ovate or elliptic, 5.5-10 mm, (median pair thickened apically, cucullate); petals (bright yellow), obovate to elliptic, 8-14 mm, (sometimes with distinct claw, often retuse). Fruits (shortly stipitate), ± globose or ellipsoid, not or slightly inflated, 5-8 mm; valves (not retaining seeds after dehiscence), glabrous throughout; replum as wide as or wider than fruit; ovules (8-)12-20 per ovary; style 3.5-5 mm. Seeds flattened. 2n = 12, 24, 36. Flowering Apr-May. Limestone prairies, rocky ridges, pebbly shores, thin caliche soils, limestone outcrops; 150-400 m; Okla., Tex.
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