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Astragalus consobrinus

Astragalus consobrinus (Barneby) S.L. Welsh

Bicknell's Milkvetch

Fabaceae (Pea family)

Synonym(s): Astragalus castaneiformis var. consobrinus

USDA Symbol: ASCO16

USDA Native Status: L48 (N)

"Perennial, sometimes flowering the first year, acaulescent, 1-5 cm tall, the caudex branches obscured by persistent leaf bases and stipules; herbage malpighian; stems essentially lacking." (reslit: 2894).

"The Bicknell milkvetch has been compared with and treated within an expanded A. castaneifornis, with which it is similar in some salient morphological features. The similarity appears to be at least in part coincidental, and the true relationship of the Bicknell plants might lie with A. cymboides with which it is apparently allied. In any event, it seems best to treat A. consobrinus at specific level." (reslit: 2894).

 

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Plant Characteristics

Duration: Perennial
Habit: Herb
Leaf Arrangement: Alternate
Fruit Type: Legume
Size Notes: "Acaulescent, 1-5 cm tall." (reslit: 2894).
Leaf: "Stipules 3-7 mm long, all distinct; leaves 1-5 cm long; leaflets 3-11, 2-8 mm long, 1.5-4.2 mm wide, obovate to oblanceolate or orbicular, rounded to obtuse or acute, strigose on both surfaces." (reslit: 2894).
Flower: "Peduncles 0.5-3 cm long; racemes 2- to 10-flowered, the flowers ascending at anthesis, the axis to 1 cm long in fruit; bracts 1.5-3.5 mm long; pedicels 1-2 mm long; bracteoles 0; calyx 5.5-8.9 mm long, the tube 4.1-6.8 mm long, cylindric, strigose, the teeth 1.4-1.7 mm long, subulate; flowers 10-15.5 mm long, ochroleucous suffused with purple." (reslit: 2894).
Fruit: "Pods ascending, sessile, obliquely ovoid or lanceovoid, 11-19 mm long, 3-8 mm thick, strigose, unilocular; ovules 18-33." (reslit: 2894).

Bloom Information

Bloom Color: Yellow , Purple
Bloom Time: May , Jun
Bloom Notes: "Flowers... ochroleucous suffused with purple." (reslit: 2894).

Distribution

USA: UT
Native Distribution: Utah. "In Emery, Garfield, Piute, Sevier, and Wayne counties; endemic." (reslit: 2894).
Native Habitat: "Sagebrush grasslands and pinyon-juniper communities at 1830 to 2200 m." (reslit: 2894).

Web Reference

Webref 23 - Southwest Environmental Information Network (2009) SEINet - Arizona Chapter

Research Literature

Reslit 2894 - UTAH FLORA: FABACEAE (LEGUMINOSAE) (1977) Welsh, Stanley L., James L. Reveal

This information was provided by the Florida WIldflower Foundation.
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Additional resources

USDA: Find Astragalus consobrinus in USDA Plants
FNA: Find Astragalus consobrinus in the Flora of North America (if available)
Google: Search Google for Astragalus consobrinus

Metadata

Record Modified: 2023-01-04
Research By: Joseph A. Marcus

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