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Streptanthus carinatus C. Wright ex A. Gray Search in The Plant ListSearch in IPNISearch in Australian Plant Name IndexSearch in NYBG Virtual HerbariumSearch in Muséum national d'Histoire naturelleSearch in Type Specimen Register of the U.S. National HerbariumSearch in Virtual Herbaria AustriaSearch in JSTOR Plant ScienceSearch in SEINetSearch in African Plants Database at Geneva Botanical Garden Decrease font Increase font Restore font
 

Published In: Smithsonian Contributions to Knowledge 5(6): 11. 1853. (Smithsonian Contr. Knowl.) Name publication detailView in Biodiversity Heritage Library
 

Project Name Data (Last Modified On 7/24/2009)
 

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10. Streptanthus carinatus C. Wright ex A. Gray, Pl. Wright. 2: 11. 1853.

     Herbs, annual or perhaps biennial, glabrous throughout, glaucous. Stems (2.1–)3–6.5(–7.5) dm, branched above base and/or upward. Basal leaves rosulate, pinnatifid, oblanceolate, 3.5–15(–30) cm, runcinate-pinnatifid, dentate, or entire; middle cauline leaves ovate to lanceolate, 2.5–14 x 0.4–5.5 cm, sessile, auriculate to amplexicaul; upper leaves similar, reduced. Racemes ebracteate, lax, without a terminal cluster of sterile flowers; fruiting pedicels divaricate-ascending, straight or curved upwards, 0.7–2.2(–3.5) cm. Flowers: sepals forming urceolate or campanulate calyx, deep purple or yellowish to nearly white, keeled, 8–11 mm; petals creamy white with purple veins or purple with white margins, recurved, 14–18 mm; blade 5–8 x 1–1.5 mm, crisped; claw 9–12 mm, about as wide as blade; filaments in 3 pairs of unequal length, free; adaxial pair exserted, 9–12 mm; abaxial pair 6–10 mm; lateral pair 4–7 mm; anthers of all stamens fertile, 4–5 mm. Fruits 3–8 cm x 4.5–6 mm, ascending, strongly flattened, straight, not torulose; valves glabrous, with obscure midvein; gynophore 0.5–2 mm; replum straight; style 0.5–2 mm; stigmas strongly 2-lobed; ovules and seeds 26–54 per fruit. Seeds orbicular, 3–5 mm diam.; wings continuous, 0.6–1.1 mm wide. 2n = 28.

Flowering: Feb–Apr.

Habitat: well-drained sandy or rocky soils, gravelly slopes, canyons, gravelly roadsides, desert scrub, sandy grasslands, cliff bases, talus, limestone, gravelly slopes, brushy areas, canyons and isolated in washes.

Elevation: 600–1700 m.

Distribution: Mexico (Baja California, Chihuahua, Coahuila), United Sates (Arizona, New Mexico, Texas).

     Two subspecies.

 

 

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                                   Key to the subspecies of Streptanthus carinatus

1. Sepals ochroleucous or yellowish; petals white with purplish veins; lowest leaves entire to

     runcinate-pinnatifid                             ............................................................................... 10a. subsp. arizonicus

1. Sepals purple; petals purple with white margin; lowest leaves runcinate-pinnatifid ................. 10b. subsp. carinatus

 
 


 

 
 
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