Rock Garden Plants
Potentilla howellii Greene  
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FamilyROSACEAE
Genus speciesPotentilla howellii Greene 
SynonymsHorkelia howellii (Greene) Rydb.
Habitatthickets and steppes
Altitude60-1200m
Descriptionbasal leaves subcylindrical, pinnate, segments overlaping, elliptic to flabellate, 4-10mm, inflorescence open, flowers solitary, 1cm across, petals narrowly obcordate
Size10-50cm
Colorwhite, rose
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 early spring; cuttings in late summer and fall
Territory Northern America
     Northwestern U.S.A. (Oregon )
     Southwestern U.S.A. (California)
BibliographyPlants of the World online powo.science.kew.org
International Plant Names Index www.ipni.org
Comments

ROSACEAE

Potentilla howellii Greene, Pittonia 1(3): 104 (1887)

Synonyms:
Horkelia howellii (Greene) Rydb.

Oregon, California
73 ORE 76 CAL

60-1200m

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(c) 1990-2021 RNDr. Pavel Slabý