Plant Database

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Plant Characteristics

Duration: Perennial
Habit: Herb
Leaf Arrangement: Alternate
Fruit Type: Legume
Size Notes: "Stems 3-5.5 dm. long." (bibref: 1813).
Leaf: "Stipules 3-6 mm. long, the lowest papery-membranous or early becoming so, ovate, decurrent around more or less half the stem's circumference, the median and upper ones narrower, deltoid or triangular-acuminate, green but thin-textured, commonly reflexed, the margins ciliate and often beset with a few minute, tack-shaped processes, leaves widely ascending or some refracted, (3) 5-12 cm. long, the uppermost subsessile, with (15) 19-27 lance-oblong, oblong, or oblong-elliptic, nearly always emarginate or retuse, flat leaflets 6-22 mm. long, glabrous or often thinly pubescent above." (bibref: 1813).
Flower: "Peduncles 7-15 cm. long, mostly a little longer than the leaf, incurved-ascending at anthesis, commonly weighed down by the heavy fruits, racemes 7-15- flowered, the axis a little elongating, 1.5-7.5 cm. long in fruit; bracts membranous, triangular-lanceolate, 1.5-3.3 mm. long; pedicels 1.5-3.3 mm. long, at anthesis ascending, straight or nearly so, in fruit scarcely or no longer, a little thickened, arched outward; bracteoles usually 2, often conspicuous, rarely 0, calyx 6-9.4 mm. long, villosulous with black, fuscous, or sometimes largely white hairs, the somewhat oblique disc 1.3-2 mm. deep, the tube 4.2-5.5 mm. long, 3 4.5 mm. in diameter, the broadly subulate teeth 1.7-4 mm. long, the ventral pair commonly broadest and shortest, the orifice oblique, the whole becoming papery, marcescent unruptured; petals whitish, drying ochroleucous or yellowish; banner broadly rhombic or rhombic-obovate, notched, 13.8-19.3 mm. long, 7.6-9.5 mm. wide; wings 12.1-15.8 mm. long, the claws 4.5-5.8 mm., the linear-oblong or oblanceolate, obtuse but erose or subemarginate, gently incurved blades 8.3-11.9 mm. long, 2.3-3.5 wide; keel 9.5-12.3 mm. long, the claws 4.6-5.7 mm., the lunately half- obovate or obliquely triangular blades 5.2-7.4 mm. long, 2.5-3.4 mm. wide, incurved through 85-100 degrees to the bluntly deltoid apex; anthers (0.4) 0.45-0.7 mm. long." (bibref: 1813).
Fruit: "Pod loosely pendulous (often humistrate and hence variably oriented), glabrous, stipitate, the slender stipe 5-8 mm. long, the body plumply oblong-ovoid or half- ovoid, 1-1.6 cm. long, (4) 4.5-7 mm. in diameter, abruptly contracted at both ends, beaked with a sharp, subulate, subpungent cusp, subterete and solid when first formed, becoming a little compressed laterally and bicarinate by the cordlike ventral and narrower, undulate dorsal sutures, the smooth, green, fleshy valves becoming stiffly leathery or woody, brownish-stramineous, coarsely rugulose-reticulate, inflexed as a complete septum nearly as broad as the pod's diameter; seeds (seldom seen) brown, sometimes purple-dotted, smooth or sparsely pitted, dull, 2.6-3.5 mm. long, the fruits deciduous and remaining long unopened on the ground." (bibref: 1813). pod glabrous, the rather stout stipe 6-12 mm. long.

Bloom Information

Bloom Color: White , Yellow
Bloom Time: Apr , May , Jun , Jul
Bloom Notes: "Petals whitish, drying ochroleucous or yellowish." (bibref: 1813).

Distribution

USA: CA , OR
Native Distribution: "Locally plentiful but somewhat scattered, common in the upper Rogue River Valley in Jackson and immediately adjoining Josephine Counties, Oregon, north just into southeastern Douglas County (Jackson Creek, upper Umpqua River), and south along the Klamath River in northcentral Siskiyou County, California, thence rarely and interruptedly southward to the upper Trinity River in Trinity County (Weaverville) and to the Cascade foothills in Tehama and Butte Counties." (bibref: 1813).
Native Habitat: "Grassy and brushy hillsides, open woods, and oak thickets, on either volcanic or granitic bedrock, 700-4000 feet." (bibref: 1813).

Bibliography

Bibref 1813 - Atlas of North American Astragalus (1964) Barneby, Rupert C.

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Additional resources

USDA: Find Astragalus accidens var. hendersonii in USDA Plants
FNA: Find Astragalus accidens var. hendersonii in the Flora of North America (if available)
Google: Search Google for Astragalus accidens var. hendersonii