Rock Garden Plants
Oenothera  macrocarpa Nutt.   
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FamilyONAGRACEAE
Genus species var.Oenothera  macrocarpa Nutt. 
SynonymsMegapterium macrocarpum (Nutt.) R.R.Gates
 Oenothera missouriensis Sims
Territory Northwestern U.S.A.North-Central U.S.A.Northeastern U.S.A.South-Central U.S.A.Southeastern U.S.A.
american prairie
Description subglabrous, stems ramose, leaves lanceolate, petiolate, sparsely glandular-denticulate, flowers solitary, to 8cm across, petals obcordate, capsules ellipsoid, 4-winged
Size5-10cm
Colorpale yellow
Bloomsummer
Ca
Typetuft
Cultivationsunny site with a deep, drained soil
alpine house, rich, drained soil, sun
Propagationseed in spring, barely covered, germ. 1-3 months, 18-21°C
division in fall; cuttings in late summer
BibliographySmall, J.K. (1933) Manual of the Southeastern Flora
USDA Plants Database plants.usda.gov
Picture
Version 8.0
(c) 1990-2016 RNDr. Pavel Slabý