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Stanleya pinnata (Pursh) Britt.
Family: Brassicaceae
desert princesplume,  more...
Stanleya pinnata image
Max Licher  
Perennials, subshrubs, or shrubs; (sometimes suffrutes-cent); (glaucous or not), mostly glabrous. Stems erect, unbranched or branched (few) proximally and distally, (1.2-) 3-12(-15.3) dm. Basal leaves (withered by flowering); similar to cauline. Cauline leaves: petiole 0.7-6.2 cm; blade (fleshy), oblanceolate to broadly lanceolate or ovate in outline, or (distally) lobed or linear to narrowly lanceolate, 3-15 cm (smaller distally), margins lyrate-pinnatifid or runcinate, or (distal) pinnately lobed or entire. Racemes somewhat dense. Fruiting pedicels horizontal to divaricate, 3-11 mm. Flowers: sepals oblong-linear, 8-16 mm; petals yellow, oblanceolate to oblong, 8-20 × 2-3 mm, claw 4-10 mm, wider at base, densely pubescent inside; filaments 11-28 mm, pilose at base; anthers 3-5 mm; gynophore 7-28 mm. Fruits usually spreading to divaricate, rarely ascending, often strongly curved downward, not tortuous, (smooth), terete, 3-9 cm × 1.5-3 mm; ovules 10-38 per ovary; style 0.2-0.6 mm. Seeds (sometimes black), oblong, 2.5-4.5 × 1.2-2 mm.
Al-Shebaz 2014 (Jepson Online)
Duration: Perennial Nativity: Native Lifeform: Subshrub General: Habit: Perennial herb to subshrub. Stem: (1.2)3--12(15.3) dm, glaucous, hairs 0 or sparse; base branched, woody. Leaves: Leaf: basal, proximal cauline 3--15 cm, 2--5 cm wide, oblanceolate to wide-lanceolate or ovate, pinnately lobed; distal cauline entire or few-lobed, base not lobed. Flowers: Inflorescence: 1--3 dm, dense; buds +- yellow. Flower: sepals 8--16 mm; petals 8--20 mm, 2--3 mm wide, yellow, claw 4--10 mm, densely hairy inside; filament base hairy. Fruits: Fruit: 3--9 cm, 1.5--3 mm; stalk above receptacle 7--28 mm; pedicel spreading, 3--11 mm, hairs 0 or few. Seed: (10)28--38, 2.5--4.5 mm, oblong. Ecology: Found in chaparral, open sites, slopes, canyons, desert scrub, woodland, dunes, below 9,500 ft (2896 m); flowers April to September. Distribution: Oregon to Montana and Kansas; south to New Mexico, Arizona, California. Notes: This large showy perennial herb is an indicator of selenium-rich soils. Stanleya pinnata var. integrifolia is found in Wyoming, Colorado, Nevada, Utah; Stanleya pinnata var. texana, with entire proximal leaves, is found in Texas. Synonyms: None Editor: Hazelton pasted straight from Jepson, no editing
Stanleya pinnata image
Max Licher  
Stanleya pinnata image
Susan Holiday  
Stanleya pinnata image
Susan Holiday  
Stanleya pinnata image
Patrick Alexander  
Stanleya pinnata image
Patrick Alexander  
Stanleya pinnata image
Patrick Alexander  
Stanleya pinnata image
Patrick Alexander  
Stanleya pinnata image
Patrick Alexander  
Stanleya pinnata image
Patrick Alexander  
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