Rock Garden Plants
Heuchera cylindrica Douglas  
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FamilySAXIFRAGACEAE
Genus speciesHeuchera cylindrica Douglas 
SynonymsHeuchera glabella Torr. & A.Gray
 Heuchera saxicola E.E.Nelson
 Heuchera suksdorfii Rydb.
Habitatrocks and scree
Altitude500-3400m
Descriptionleaves petiolate, ovate to orbiculate, deeply 5-7-lobate, dentate, subglabrous, inflorescence dense, hypanthium white or yellow, petals often absent
Size15-90cm
Colorwhite
Bloomspring, summer
Ca
Typetuft
Cultivationrock crevices with favourable water regime, eastern slopes
alpine house, poor, drained soil, shading in summer
Propagationseed in spring, barely covered, germ. 1-3 months, 16-21°C
division in spring
Territory Northern America
     Western Canada (Alberta , British Columbia )
     Northwestern U.S.A. (Idaho , Montana , Oregon , Washington , Wyoming )
     Southwestern U.S.A. (California , Nevada)
BibliographyPlants of the World online powo.science.kew.org
International Plant Names Index www.ipni.org
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Comments

SAXIFRAGACEAE

Heuchera cylindrica Douglas, Fl. Bor.-Amer. [Hooker] 1(5): 236 (1832)

Synonyms:
Yamala cylndrica (Douglas) Raf.

Heuchera alpina (S.Watson) Blank.
Heuchera cylindrica alpina S.Watson
Heuchera cylindrica glabella (Torr. & A.Gray) Wheelock
Heuchera cylindrica orbicularis (Rosend. & al.) Calder & Saville
Heuchera cylindrica ovalifolia (Nutt.) Wheelock
Heuchera cylindrica septentrionalis Rosend.
Heuchera cylindrica suksdorfii (Rydb.) Dorn
Heuchera cylindrica typica Rosend. & al.
Heuchera cylindrica valida Rosend. & al.
Heuchera glabella Torr. & A.Gray
Heuchera glabella suksdorfii (Rydb.) Rosend.
Heuchera ovalifolia alpina (S.Watson) Rosend.
Heuchera ovalifolia orbicularis Rosend. & al.
Heuchera ovalifolia thompsonii Rosend. & al.
Heuchera ovalifolia typica Rosend. & al.
Heuchera saxicola E.E.Nelson
Heuchera suksdorfii Rydb.
Heuchera suksdorfii ribesoides Rosend. & al.
Heuchera suksdorfii sandbergii Rosend. & al.
Heuchera suksdorfii typica Rosend. & al.

w. Canada, w. USA
71 ABT BRC 73 IDA MNT ORE WAS WYO 76 CAL NEV

500-3400m

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(c) 1990-2021 RNDr. Pavel Slabý