Rock Garden Plants
Delphinium decorum Fisch. & C.A.Mey.  
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FamilyRANUNCULACEAE
Genus speciesDelphinium decorum Fisch. & C.A.Mey. 
Habitatdry, stony grassland
Altitude0-2300m
Descriptionleaves trifoliolate, 3-4cm wide, middle segment entire or trifid, lateral leaflets 1-2-fid, stem leaves reduced, villose, sepals 12-16mm, upper petals with lateral lobes
Size5-25cm
Colorbluish purple
Bloomsummer
Ca
Typetuft
Cultivationsunny site with a deep, drained soil
alpine house, rich, drained soil, sun
Propagationseed in winter, barely covered, germ. 1-3 months, 10-13°C
division in spring just as young growth commences
Territory Northern America
     Northwestern U.S.A.
     Southwestern U.S.A. (California)
BibliographyPlants of the World online powo.science.kew.org
International Plant Names Index www.ipni.org
Comments

RANUNCULACEAE

Delphinium decorum Fisch. & C.A.Mey., Index Seminum (LE, Petropolitanus) 3: 33 (1837)
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decorum typicum ined.

Synonyms:
Delphinium decorum genuinum Huth
Delphinium decorum racemosum Eastw.
Delphinium decorum sonomensis Eastw.

California
76 CAL

0-2300m

decorum tracyi Ewan, Univ. Colorado Stud., Ser. D, Phys. Sci. 2: 100 (1945)

Oregon, nw. California
73 ORE 76 CAL

700-2300m

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