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

9. Physaria aurea (Wooton) O’Kane & Al-Shehbaz, Novon. 12: 322. 2002.

Golden bladderpod Golden bladderpod

Lesquerella aurea Wooton, Bull. Torrey Bot. Club 25: 260. 1898

Biennials or perennials; (short-lived); caudex branched; densely pubescent, trichomes (sessile or short-stalked, simple or not), 5-9-rayed, rays furcate, (fine, smooth or finely tuberculate). Stems several from base, erect or outer ones decumbent or procumbent, (sometimes much-branched distally), to 6 dm. Basal leaves: blade obovate or rhombic, to ca. 2.5 cm, margins usually shallowly dentate, sometimes lyrate-pinnatifid. Cauline leaves: (proximal shortly petiolate, distal sessile); blade obovate to rhombic or oblanceolate, 2-4(-6) cm, margins entire or shallowly and remotely dentate. Racemes usually dense, (several-flowered). Fruiting pedicels (strongly recurved), to 20 mm. Flowers: sepals ovate or oblong (tapering at base), 3.6-4.8(-5.3) mm, (lateral pair subsaccate, median pair thickened apically, cucullate); petals obovate to spatulate, 4.5-7.5 mm, (blade narrowed to broad claw, margins sinuate). Fruits (± pendent), ovoid, obcompressed, or globose, compressed, 4-6(-8) mm; valves (not retaining seeds after dehiscence), sparsely pubescent or glabrous, sparsely pubescent inside; replum as wide as or wider than fruit; ovules usually 4, rarely 6, per ovary; style 2.5-3.6 mm. Seeds flattened. 2n = 14.

Flowering Jun-Aug. Open sites and bare areas in rocky limestone soil in mountains, roadbanks, open woods; of conservation concern; 2000-2800 m; N.Mex.

Physaria aurea (known from the Jicarilla and Sacramento mountains) is similar to 35. P. gooddingii, which is found farther west in the mountains of Catron and Sierra counties, New Mexico, and Greenlee County, Arizona.


 

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