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

No occurrences found

(redirected from: Lesquerella purpurea (A. Gray) S. Watson)
Family: Brassicaceae
rose bladderpod
[Lesquerella purpurea (A. Gray) S. Watson]
Physaria purpurea image
Ries Lindley
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Steve L. O´Kane Jr. in Flora of North America (vol. 7)
Perennials; caudex simple, (usually woody); densely pubescent, trichomes (sessile or short-stalked), several-rayed, rays simple or furcate, (smooth or tuberculate). Stems simple from base, erect, (unbranched, sparsely leaved), to 7 dm. Basal leaves: blade elliptic or obovate to oblong, 4-15 cm, margins entire, dentate, or lyrate-pinnatifid. Cauline leaves: (proximal often narrowed to short petiole, distal sessile); blade broadly elliptic to obovate or rhombic, 0.5-3(-5) cm, margins entire. Racemes dense or slightly elongated. Fruiting pedicels (spreading or recurved, loosely sigmoid), 5-25 mm. Flowers: sepals elliptic to ovate, 3.5-6(-7) mm, (median pair usually thickened apically, cucullate); petals (white, often purple-veined, fading purplish), suborbicular to obovate, obdeltate, or cuneate, 4.5-10(-12) mm, (often narrowed to broad claw, apex emarginate, less frequently claw undifferentiated from blade). Fruits (pendent or horizontal, sessile or substipitate), subglobose to broadly ellipsoid, not or slightly inflated, (4-)5-8 mm; valves (not retaining seeds after dehiscence), glabrous throughout; replum as wide as or wider than fruit; ovules 4-8(-12) per ovary; style 1-3(-4) mm. Seeds flattened. 2n = 18, 36. Flowering Mar-Oct. Rocky draws, canyons, stony hills, ridges, rock crevices on limestone ledges, lava cliffs, sand and gravel of dry stream beds, rocky slopes, talus, shade of bushes or cactus clumps; 400-2400 m; Ariz., N.Mex., Tex.; Mexico (Chihuahua, Coahuila, Sonora).
Wiggins 1964, Kearney and Peebles 1969
Duration: Perennial Nativity: Native Lifeform: Forb/Herb General: Decumbent to partially erect perennial with silvery-stellate herbage and stems 10-40 cm long. Leaves: Basal leaves oval to oblanceolate, 2-12 cm long, repand to lyrately pinnatifid, gradually narrowed toward base to a slender petiole one-half as long as blade or less, obtuse to rounded at apex; cauline leaves oblanceolate, 7-25 mm long, remote, acute to obtuse at apex, entire. Flowers: Inflorescence elongated in fruit, erect or ascending; petals 7-9 mm long, distinctly clawed, blade white, pink, or purplish. Fruits: Fruiting pedicels slender, horizontal to recurved to recurved, 5-15 mm long, styles 1.5-2 mm long; silicle globose, 4-6 mm in diameter, horizontal to pendent, glabrous. Ecology: Found on slopes, outwash slopes, and in partial shade of bushes; 1,500-5,000 ft (457-1524 m); flowers January-May. Distribution: se AZ, s NM, sw TX; south to c MEX. Notes: Physaria species (classified as Lesquerella in many treatments) have gray-green leaves, often with stellate hairs, white or yellow flowers, and round, globe-shaped fruits with a persistent style. This species distinguished by being an often decumbent perennial with most of the leaves constricted to the basal rosette, which persists during non-flowering periods; the stems are not branched from the base and quite long and wiry for the genus; white-purplish flowers, firm fruits and the fact the valves (center wall) of fruits are left behind after dehiscence all are characteristic of this plant. Ethnobotany: Unknown, but other species in the genus have many uses. Etymology: Physaria is from Greek phusa or physa or bellows, while purpurea means purple. Synonyms: Lesquerella purpurea, Lesquerella purpurea subsp. foliosa Editor: SBuckley 2010, FSCoburn 2015
Physaria purpurea
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Physaria purpurea image
Ries Lindley
Physaria purpurea image
Ries Lindley
Physaria purpurea image
Ries Lindley
Physaria purpurea image
Ries Lindley
Physaria purpurea image
Patrick Alexander
Physaria purpurea image
Patrick Alexander
Physaria purpurea image
Patrick Alexander
Physaria purpurea image
Fred Fisher
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