Rock Garden Plants
Astragalus siskiyouensis (Rydb.) J.W.Thomps. trib. Galegeae 
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FamilyFABACEAE
Genus speciesAstragalus siskiyouensis (Rydb.) J.W.Thomps. trib. Galegeae
BibliographyLeafl. W. Bot. 1: 212 (1936)
Native Ranges. Oregon to n. California
Primary BiomeTemperate
Habitatrocky slopes
Altitude750-2750m
Descriptiongrey-green, appresed hirsute, leaves 3-9cm, leaflets remote, 5-10 pairs, oblong or obovate, flowers patent in raceme, pod glabrous, 2-6cm, papery
Size5-15cm
Colorwhitish
Bloomsummer
Ca
Typeperennial
Cultivationsunny rock crevices, protection against winter wet
alpine house, poor, drained soil, sun
Propagationscarified seed in spring, germ. 1-3 months, 10-13°C
cuttings in late summer
SynonymsAstragalus hookerianus var. siskiyouensis (Rydb.) M.Peck
Astragalus whitneyi var. siskiyouensis (Rydb.) Barneby
Astragalus whitneyi ssp. siskiyouensis (Rydb.) Abrams
Phaca siskiyouensis Rydb.
Territory7 Northern America
     73 Northwestern U.S.A. (ORE Oregon)
     76 Southwestern U.S.A. (CAL California)
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(c) 1990-2025 RNDr. Pavel Slabý