dcsimg

Comprehensive Description

provided by North American Flora
Homalobus gibbsii (Kellogg) Rydb. Bull. Torrey Club 51: 15. 1924.
Astragalus Gibbsii Kellogg. Proc. Calif. Acad. 2: 161. 1862.
Astragalus cyrtoides A. Gray, Proc. Am. Acad. 6: 525. 1865. Not A. cyrtoides A. Gray. 1864.
Tragacantha Gibbsii Kuntze, Rev. Gen. 945. 1891.
A perennial, with a cespitose rootstock; stems flexuose, branched, 2-4 dm. high, terete, villous with spreading hairs; leaves 5-8 cm. long; stipules ovate to lanceolate, distinct, 2-4 mm. long; leaflets obovate or obcordate, 8-15 mm. long, 4—8 mm. wide, rounded, retuse, or emarginate at the apex, villous on both sides; peduncles 5-S mm. long; racemes 2-S mm. long; bracts lanceolate, 2 mm. long, nearly as long as the pedicels; calyx villous, 5 mm. long, 3 mm. broad, gibbous below on the upper side; corolla ochroleucous; banner obovate, 14 mm. long; wings about as long, the blade obliquely obovate, acutish at the apex, hastately auricled at the base, shorter than the claw; keel-petals 12 mm. long, the blade broadly lunate, rounded at the apex, a little more than half as long as the claw; pod villous, stipitate, the stipe about 1 cm. long, the body 2.5-3 cm. long, 4-5 mm. wide, curved in a semicircle or less.
Type locality: Headwaters of the Carson River. Nevada. Distribution: Eastern California and western Nevada.
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bibliographic citation
Per Axel Rydberg. 1919. (ROSALES); FABACEAE; PSORALEAE. North American flora. vol 24(1). New York Botanical Garden, New York, NY
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Comprehensive Description

provided by North American Flora
Homalobus plummerae Rydb. Bull. Torrey Club 51 : 16. 1924
Astragalus cyrtoides M. E. Jones, Zoe 4: 31. 1893. Not ^4. cyrtoides A. Gray. 1864.
A perennial, with a cespitose woody caudex; stems terete, striate, and villous with spreading hairs, 2-3 dm. high; stipules triangular, striate, distinct, 2-3 mm. long; leaves 4—7 cm. long; leaflets 7-13 obcordate, 8-15 mm. long, 5-10 mm. wide, villous on both sides; peduncles 5-8 cm. long; raceme short and dense, in flower 2-3 cm. long, in fruit 5-7 cm. long; bracts lanceolate, 2-3 cm. long, longer than the pedicels; calyx pilosevillous, the tube 8 mm. long, gibbous below on the upper side, the upper two teeth triangular, the lower three lanceolate, 1 mm. long; corolla ochroleucous, about 14 mm. long, similar to that of H. Gibbsii; pod short villous, stipitate, the stipe about S mm. long, the body lunate, gradually tapering at each end, 2-2.5 cm. long, 7-8 mm. wide, reticulate; seeds reniform, 2.5 mm. long.
Type locality: Sierra County, California. Distribution: Northeastern California.
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bibliographic citation
Per Axel Rydberg. 1919. (ROSALES); FABACEAE; PSORALEAE. North American flora. vol 24(1). New York Botanical Garden, New York, NY
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Physical Description

provided by USDA PLANTS text
Perennial, Herbs, Stems woody below, or from woody crown or caudex, Plants with rhizomes or suckers, Taproot present, Nodules present, Stems or branches arching, spreading or decumbent, Stems less than 1 m tall, Stems solid, Stems or young twigs sparsely to densely hairy, Stem hairs hispid to villous, Stems hairs pilose or spreading, Leaves alternate, Leaves petiolate, Stipules conspicuous, Stipules membranous or chartaceous, Stipules persistent, Stipules free, Stipules connate to each other, forming a tuber or sheath, Leaves compound, Leaves odd pinnate, Leaf or leaflet margins entire, Leaflets opposite, Leaflets 10-many, Leaves hairy on one or both surfaces, Inflorescences racemes, Inflorescence axillary, Bracts very small, absent or caducous, Flowers zygomorphic, Calyx 5-lobed, Calyx gibbous, inflated, or spurred, Calyx glabrous, Petals separate, Corolla papilionaceous, Petals clawed, Petals orange or yellow, Banner petal narrow or oblanceolate, Wing petals narrow, oblanceolate to oblong, Wing tips obtuse or rounded, Keel petals auriculate, spurred, or gibbous, Keel tips obtuse or rounded, not beaked, Stamens 9-10, Stamens diadelphous, 9 united, 1 free, Filaments glabrous, Style terete, Style persistent in fruit, Fruit a legume, Fruit stipitate, Fruit unilocular, Fruit tardily or weakly dehiscent, Fruit oblong or ellipsoidal, Fruit strongly curved, falcate, bent, or lunate, Fruit or valves persistent on stem, Fruit fleshy, Fruit coriaceous or becoming woody, Fruit exserted from calyx, Fruit beaked, Fruit hairy, Fruit 11-many seeded, Seeds cordiform, mit-shaped, notched at one end, Seed surface smooth, Seeds olive, brown, or black.
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Dr. David Bogler
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Missouri Botanical Garden
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USDA NRCS NPDC
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Astragalus gibbsii

provided by wikipedia EN

Astragalus gibbsii is a species of milkvetch known by the common name Gibbs's milkvetch. It is native to eastern California, the north-central Sierra Nevada, and western Nevada, where it grows in the pine forest habitat of the mountains and the sagebrush of the plateaus.

Description

Astragalus gibbsii is low-lying perennial herb forming clumps of hairy, gray-green stems up to 35 centimeters long. Leaves are up to about 9 centimeters long and are made up of several pairs of oval to oblong leaflets. The large inflorescence bears up to 30 yellowish or cream-colored pouched, podlike flowers, each between 1 and 2 centimeters long.

The fruit is a hanging legume pod 2 to 3 centimeters long. It is fleshy when new and dries to a hairy, leathery texture.

References

  1. ^ "NatureServe Explorer - Astragalus gibbsii". NatureServe Explorer Astragalus gibbsii. NatureServe. 2022-05-30. Retrieved 30 May 2022.

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Astragalus gibbsii: Brief Summary

provided by wikipedia EN

Astragalus gibbsii is a species of milkvetch known by the common name Gibbs's milkvetch. It is native to eastern California, the north-central Sierra Nevada, and western Nevada, where it grows in the pine forest habitat of the mountains and the sagebrush of the plateaus.

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