Rock Garden Plants
Mentzelia laevicaulis (Douglas) Torr. & A.Gray  
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FamilyLOASACEAE
Genus speciesMentzelia laevicaulis (Douglas) Torr. & A.Gray 
SynonymsBartonia laevicaulis Douglas
 Mentzelia acuminata (Rydb.) Tidestr.
Habitatsagebrush wilding
Descriptionleaves alternate, lower leaves oblanceolate, deeply remote-dentate, petiolate, to 15cm long, flowers terminal, petals 25-80mm long, oblong, anthers numerous
Size30-100cm
Colorlemmon yellow
Bloomlate summer
Ca
Typetuft
Cultivationsunny site with a poor, sandy soil
alpine house, sandy soil, sun
Propagationseed in spring, barely covered, germ. 1-3 months, 13-18°C
cuttings in late spring and in summer
Territory Northern America
     Western Canada
     Northwestern U.S.A. (Colorado , Idaho , Montana , Oregon , Washington , Wyoming )
     Southwestern U.S.A. (Arizona , California , Nevada , Utah)
BibliographyPlants of the World online powo.science.kew.org
International Plant Names Index www.ipni.org
Comments

LOASACEAE

Mentzelia laevicaulis (Douglas) Torr. & A.Gray, Fl. N. Amer. [Torrey & A.Gray] 1(3): 535 (1840)

Basionym:
Bartonia laevicaulis Douglas, Fl. Bor.-Amer. [Hooker] 1(5): 221 (1832)

Synonyms
Hesperaster laevicaulis (Douglas ex Hook.) Cockerell
Nuttallia laevicaulis (Douglas ex Hook.) Greene
Touterea laevicaulis (Douglas ex Hook.) Rydb.
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laevicaulis typica ined.

Synonyms:
Mentzelia acuminata (Rydb.) Tidestr.
Mentzelia laevicaulis acuminata (Rydb.) A.Nelson & J.F.Macbr.
Nuttallia acuminata Rydb.

w. USA
73 COL IDA MNT ORE WAS WYO 76 ARI CAL NEV UTA

laevicaulis parvilflora (Douglas) C.L.Hitchc., Vasc. Pl. Pacif. N.W. [C.L. Hitchcock & al.] 3: 455 (1961)

Basionym:
Bartonia parviflora Douglas, Fl. Bor.-Amer. [Hooker] 1(5): 221 (1832)

Synonyms:
Acrolasia parviflora (Douglas ex Hook.) A.Heller
Mentzelia parviflora (Douglas ex Hook.) J.F.Macbr.
Nuttallia parviflora (Douglas ex Hook.) Greene
Touterea parviflora (Douglas ex Hook.) Rydb.

Mentzelia brandegei S.Watson
Mentzelia douglasii St.John
Nuttallia brandegei (S.Watson) Greene
Touterea brandegei (S.Watson) Rydb.

British Columbia, Idaho, Washington
71 BRC 73 IDA WAS

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