Eriogonum microtheca Nutt.


Family	POLYGONACEAE
Genus species	Eriogonum microtheca Nutt. sect. Eucycla
Synonyms	Eriogonum idahoense Rydb.
Habitat	rocky slopes
Altitude	500-3300m
Description	stem leaves linear to elliptic, abaxially tomentose, adaxially subglabrous, inflorescence cymose, rather compact, involucres single, turbinate, flowers glabrous
Size	2-50cm
Color	white, yellow, rose
Bloom	summer
Ca
Type	shrub
Cultivation	sunny, dry, rock crevices, protection against winter wet alpine house, poor, drained soil, sun
Propagation	seed in spring, germ. 1-3 months, 13-18°C cuttings in late summer
Territory	Northern America Northwestern U.S.A. (Colorado , Idaho , Montana , Oregon , Washington , Wyoming ) Southwestern U.S.A. (Arizona , California , Nevada , Utah ) South-Central U.S.A. (New Mexico)
Bibliography	Plants of the World online powo.science.kew.org International Plant Names Index www.ipni.org

Comments	POLYGONACEAE Eriogonum microtheca Nutt., Proc. Acad. Nat. Sci. Philadelphia 4: 15 (1848) w. & s. USA 73 COL IDA MNT ORE WAS WYO 76 ARI CAL NEV UTA 77 NWM 500-3300m microtheca typicum S.Stokes, Eriogonum: 74 (1936) Synonyms: Eriogonum idahoense Rydb. Eriogonum microtheca friscanum S.Stokes Eriogonum microtheca idahoense (Rydb.) S.Stokes Eriogonum microtheca intricatum Gand. Eriogonum microtheca rigidum Eastw. Eriogonum microtheca spathulare Gand. Idaho, Oregon 73 IDA ORE 600-1100m microtheca alpinum Reveal , Brigham Young Univ. Sci. Bull., Biol. Ser. 13(1): 31 (1971) c. California 76 CAL 2500-3300m microtheca ambiguum (M.E.Jones) Reveal, Suppl. Calif. Fl. [Munz] 61(1968) Basionym: Eriogonum aureum ambiguum M.E.Jones, Proc. Calif. Acad. Sci., ser. 2. 5: 719 (1895) Synonyms: Eriogonum fruticosum ambiguu (M.E.Jones) A.Nelson Eriogonum microtheca expansum S.Stokes w. USA 73 IDA ORE 76 CAL NEV 1100-3300m microtheca arceuthinum Reveal, Phytologia 86(3): 135 (2004) Nevada 76 NEV 1900-2100m microtheca corymbosoides Reveal, Brigham Young Univ. Sci. Bull., Biol. Ser. 13(1): 25 (1971) sw. California 76 CAL 1500-2900m microtheca johnstonii Reveal, ibid. sw. California 76 CAL 2600-2900m microtheca lacusursi Reveal & A.Sanders, Phytologia 86(3): 137 (2004) California 76 CAL 2000-2100m microtheca lapidicola Reveal, ibid. sw. USA 76 CAL NEV UTA 2600-3100m microtheca laxiflorum Hook., Hooker‘s J. Bot. Kew Gard. Misc. 5: 264 (1853) Synonyms: Eriogonum confertiflorum Benth. Eriogonum confertiflorum stansburyi Benth. Eriogonum laxiflorum (Hook.) Nutt. ex Benth. Eriogonum microtheca confertiflorum (Benth.) Torr. & A.Gray Eriogonum microtheca laxiflorum (Hook.) S.Stokes w. USA 73 COL IDA MNT ORE WAS WYO 76 ARI CAL NEV UTA 400-3200m microtheca panamintense S.Stokes, Eriogonum 74 (1936) California 76 CAL 1900-2800m microtheca phoeniceum (L.M.Schulz) Reveal, Harvard Pap. Bot. 9(1): 183 (2004) Basionym: Eriogonum phoeniceum L.M.Schulz, Harvard Pap. Bot., 3: 49 (1998) w. Utah 76 UTA 1600-2100m microtheca schoolcraftii Reveal, Phytologia 86(3): 138 (2004) California, Nevada 76 CAL NEV 1400-2200m microtheca simpsonii (Benth.) Reveal, Taxon 32(2): 293 (1983) Basionym: Eriogonum simpsonii Benth., Prodr., [A.P.de Candolle] 14: 18 (1856) Synonyms: Eriogonum effusum foliosum Torr. & A.Gray Eriogonum effusum nelsonii (L.O.Williams) Eriogonum effusum simpsonii (Benth.) S.Stokes Eriogonum friscanum M.E.Jones Eriogonum microtheca foliosum (Torr. & A.Gray) Reveal Eriogonum microtheca intermedium S.Stokes Eriogonum microtheca macdougalii (Gand.) S.Stokes Eriogonum nelsonii L.O.Williams Eriogonum simpsonii Benth. Eriogonum simpsonii floccosolanatum Benth. nw. & s. USA 73 COL IDA MNT WYO 76 ARI CAL NEV UTA 77 NWM 1400-2300m microtheca tegetiforme S.L.Welsh & N.D.Atwood, Utah Fl., [S.L.Welsh] ed. 4: 585 (2008) Utah 76 UTA