Burke: Astragalus succumbens vs. Astragalus sinuatus

	Astragalus succumbens	Astragalus sinuatus
	crouching milk-vetch, sprawling milk-vetch	Whited's milk-vetch
Habit		Robust perennial from a woody taproot and crown, the stems decumbent, 2-4.5 dm. tall, grayish-woolly throughout with curly hairs.
Leaves		Robust perennial from a woody taproot and crown, the stems decumbent, 2-4.5 dm. tall, grayish-woolly throughout with curly hairs.
Flowers		Robust perennial from a woody taproot and crown, the stems decumbent, 2-4.5 dm. tall, grayish-woolly throughout with curly hairs.
Fruits		pendulous, with a stipe 5-7 mm. long, the body ellipsoid, curved, wedge-shaped at both ends, 24-27 mm. long and 4-5 mm. thick, 1-celled, the fleshy valves becoming leathery.

	Astragalus succumbens	Astragalus sinuatus
Flowering time	April-June	May
Habitat	Sagebrush deserts, sandy barrens and lower foothills.	Among sagebrush on rocky hillsides.
Distribution	Occurring east of the Cascades crest in Washington from Kittitas and Grant counties south; Washington to Umatilla and Gilliam Counties, Oregon. [WildflowerSearch map] [BONAP county map]	Endemic to Chelan County in Washington. [WildflowerSearch map] [BONAP county map]
Origin	Native	Native
Conservation status	Not of concern	Endangered in Washington (WANHP)
Sibling taxa	A. agrestis, A. alpinus, A. arrectus, A. arthuri, A. arthurii, A. asotinensis, A. australis, A. beckwithii, A. canadensis, A. caricinus, A. cicer, A. collinus, A. columbianus, A. conjunctus, A. cusickii, A. diaphanus, A. eucosmus, A. falcatus, A. filipes, A. geyeri, A. hoodianus, A. howellii, A. inflexus, A. kentrophyta, A. laxmannii, A. leibergii, A. lentiginosus, A. lyallii, A. microcystis, A. misellus, A. miser, A. pulsiferae, A. purshii, A. reventiformis, A. reventus, A. riparius, A. robbinsii, A. sclerocarpus, A. sheldonii, A. sinuatus, A. spaldingii, A. speirocarpus, A. tenellus, A. tweedyi, A. whitneyi	A. agrestis, A. alpinus, A. arrectus, A. arthuri, A. arthurii, A. asotinensis, A. australis, A. beckwithii, A. canadensis, A. caricinus, A. cicer, A. collinus, A. columbianus, A. conjunctus, A. cusickii, A. diaphanus, A. eucosmus, A. falcatus, A. filipes, A. geyeri, A. hoodianus, A. howellii, A. inflexus, A. kentrophyta, A. laxmannii, A. leibergii, A. lentiginosus, A. lyallii, A. microcystis, A. misellus, A. miser, A. pulsiferae, A. purshii, A. reventiformis, A. reventus, A. riparius, A. robbinsii, A. sclerocarpus, A. sheldonii, A. spaldingii, A. speirocarpus, A. succumbens, A. tenellus, A. tweedyi, A. whitneyi
Web links	Local floras: OR, WA Local Web sites: Flora NW, PNW Herbaria, Turner Photog. WildflowerSearch iNaturalist (observations) USDA Plants Database LBJ Wildflower Center SEINet Plants of the World Online Encyclopedia of Life Wikipedia Google Image Search	Local floras: WA Local Web sites: Flora NW, PNW Herbaria WildflowerSearch iNaturalist (observations) USDA Plants Database LBJ Wildflower Center SEINet Plants of the World Online Encyclopedia of Life Wikipedia Google Image Search

Astragalus succumbens

Astragalus sinuatus

crouching milk-vetch, sprawling milk-vetch

Whited's milk-vetch

Habit

Robust perennial from a woody taproot and crown, the stems decumbent, 2-4.5 dm. tall, grayish-woolly throughout with curly hairs.

Leaves

Robust perennial from a woody taproot and crown, the stems decumbent, 2-4.5 dm. tall, grayish-woolly throughout with curly hairs.

Flowers

Robust perennial from a woody taproot and crown, the stems decumbent, 2-4.5 dm. tall, grayish-woolly throughout with curly hairs.

Fruits

pendulous, with a stipe 5-7 mm. long, the body ellipsoid, curved, wedge-shaped at both ends, 24-27 mm. long and 4-5 mm. thick, 1-celled, the fleshy valves becoming leathery.