Rock Garden Plants
Romanzoffia tracyi Jeps.  
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FamilyBORAGINACEAE
Genus speciesRomanzoffia tracyi Jeps. 
BibliographyFl. Calif. 3: 296 (1943)
Native Rangesw. Canada to n. California
Primary BiomeTemperate
Habitatrocks
Altitude0-30m
Descriptionbulbs hirsute, stems lanate, leaves thinly pubescent, reniform, lobate, flowers in terminal, compact raceme, calyx lobes lanceolate, corolla 5-8mm long
Size2-12cm
Colorwhite
Bloomspring
Ca-
Typetuberous perennial
Cultivationsunny rock crevices, protection against winter wet
alpine house, poor, drained soil, sun
Propagationseed in spring, barely covered, germ. 1-3 months, 10-16°C
division of resting tubers
Territory7 Northern America
     71 Western Canada (BRC British Columbia)
     73 Northwestern U.S.A. (ORE Oregon, WAS Washington)
     76 Southwestern U.S.A. (CAL California)
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(c) 1990-2025 RNDr. Pavel Slabý