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Physaria bellii G.A. Mulligan  

No occurrences found

Family: Brassicaceae
Front Range twinpod
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Steve L. O´Kane Jr. in Flora of North America (vol. 7)
Perennials; caudex simple, (relatively large); densely (silvery) pubescent, trichomes (sessile, appressed), rays furcate, fused at base. Stems simple from base, decumbent to nearly prostrate, 0.5-1.3 dm. Basal leaves (strongly rosulate; shortly petiolate); blade broadly obovate, 1.5-7.5 (width 7.5-26 mm, base gradually tapering to petiole), margins shallowly dentate, (apex obtuse). Cauline leaves: blade oblanceolate to broadly obovate, 1-2.5 cm, margins entire. Racemes dense. Fruiting pedicels (divaricate-ascending to widely spreading, slightly sigmoid to curved), 7-12 mm. Flowers: sepals (pale yellow or yellow-green), narrowly lanceolate to narrowly deltate, 4-8 mm; petals yellow, broadly spatulate to obovate, 9-13 mm, (not clawed). Fruits didymous, slightly flattened (contrary to replum) to uncompressed, 4-9 × 2-8 mm, (strongly coriaceous, apical and basal sinuses narrow, deep); valves (retaining seeds after dehiscence), pubescent, trichomes appressed; replum narrowly oblanceolate to narrowly linear-oblong, as wide as or wider than fruit, apex obtuse; ovules 4 per ovary; style more than 3 mm. Seeds compressed. 2n = 8. Flowering Mar-Jun(-Jul). Dark shale, road cuts, ridge crests, washes; of conservation concern; 1500-1800 m; Colo. Physaria bellii is often found in shale and limestone soils of the Fountain/Ingleside, Lykins, Niobrara, and Pierre formations. It is in the Center for Plant Conservation´s National Collection of Endangered Plants.

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