Eriogonum sphaerocephalum Douglas ex Benth.


Family	POLYGONACEAE
Genus species	Eriogonum sphaerocephalum Douglas ex Benth. sect. Oligogonum
Synonyms	Eriogonum geniculatum Nutt.
Habitat	sagebrush wilding
Altitude	100-2300m
Description	leaves numerous in whorls at apex of branchlets, spathulate to oblanceolate, abaxially grey tomentose, adaxially glabrous, flowers in umbellate inflorescence
Size	5-40cm
Color	white, yellow, ochre
Bloom	late spring, summer
Ca
Type	subshrub
Cultivation	sunny site with a poor, sandy soil alpine house, sandy soil, sun
Propagation	seed in spring, germ. 1-3 months, 13-18°C cuttings in late summer
Territory	Northern America Northwestern U.S.A. (Idaho , Oregon , Washington ) Southwestern U.S.A. (California , Nevada)
Bibliography	Plants of the World online powo.science.kew.org International Plant Names Index www.ipni.org

Comments	POLYGONACEAE Eriogonum sphaerocephalum Douglas ex Benth., Trans. Linn. Soc. London 17(3): 407 (1836) ============================================================================ sphaerocephalum typicum S.Stokes, Eriogonum 104 (1936( Synonyms: Eriogonum ellipticum megacephalum Nutt. Eriogonum geniculatum Nutt. Eriogonum sphaerocephalum brevifolium S.Stokes Eriogonum sphaerocephalum geniculatum (Nutt.) S.Stokes Eriogonum sphaerocephalum megacephalum (Nutt.) S.Stokes ex M.E.Jones w. USA 73 IDA ORE WAS 76 CAL NEV 300-2300m sphaerocephalum fasciculifolium (A.Nelson) S.Stokes, Eriogonum 104 (1936) Basionym: Eriogonum fasciculifolium A.Nelson, Bot. Gaz. 54: 407 (1912) sw. Idaho 73 IDA 600-2200m sphaerocephalum halimioides (Gand.) S.Stokes, Eriogonum 104 (1936) Basionym: Eriogonum halimioides Gand., Bull. Soc. Roy. Bot. Belgique, 42: 197 (1906) Synonyms: Eriogonum fruticulosum S.Stokes w. USA 73 IDA ORE WAS 76 CAL NEV 300-2300m sphaerocephalum sublineare (S.Stokes) Reveal, Harvard Pap. Bot. 9(1): 197 (2004) Basionym: Eriogonum caespitosum sublineare S.Stokes, Leafl. W. Bot. 2: 72 (1938) Synonyms: Eriogonum douglasii sublineare (S.Stokes) Reveal Eriogonum douglasii tenue (Small) C.L.Hitchc. Eriogonum sphaerocephalum tenue (Small) Piper Eriogonum strictum tenue (Small) K.C.Davis Eriogonum tenue Small Oregon, Washington 73 ORE WAS 100-1300m