Rock Garden Plants
Hackelia diffusa (Lehm.) I.M.Johnst.  
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FamilyBORAGINACEAE
Genus speciesHackelia diffusa (Lehm.) I.M.Johnst. 
SynonymsEchinospermum diffusum Lehm.
 Lappula saxatilis Piper
 Lappula subdecumbens A.Nelson
Habitatgrassland and thickets
Altitude200-500m
Descriptionbasal leaves elliptic, long petiolate, hirsute, stem leaves sessile, elliptic to linear-lanceolate, flowers in dense panicle, corolla with yellow throat, 10-15mm across
Size5-10cm
Colorblue, white
Bloomsummer
Ca
Typetuft
Cultivationmesic, slightly humous, semi-shady site
alpine house, moist, rich, drained soil, semi-shade
Propagationseed in spring, germ. 1-3 months, 13-18°C
cuttings in late summer
Territory Northern America
     Western Canada (British Columbia )
     Northwestern U.S.A. (Oregon , Washington)
BibliographyPlants of the World online powo.science.kew.org
International Plant Names Index www.ipni.org
Comments

BORAGINACEAE

Hackelia diffusa (Lehm.) I.M.Johnst., Contr. Gray Herb. 68: 48 (1923)

Basionym:
Echinospermum diffusum Lehm., Nov. Stirp. Pug. [Lehmann] 2: 23 (1830)

Synonyms:
Cynoglossospermum diffusum (Lehm.) Kuntze
Lappula diffusa (Lehm.) Greene
Myosotis diffusa Douglas ex Lehm

200-500m
=============================================================================
diffusa typica ined.

Synonyms:
Hackelia saxatilis (Piper) Brand
Lappula saxatilis Piper
Lappula subdecumbens A.Nelson

British Columbia, Oregon, Washington
71 BRC 73 ORE WAS

diffusa arida (Piper) R.L.Carr, Mem. New York Bot. Gard. 26(1): 190 (1976)

Basionym:
Lappula arida Piper, Bull. Torrey Bot. Club 28: 44 (1901)

Synonyms:
Echinospermum aridum (Piper) K.Schum.
Hackelia arida (Piper) I.M.Johnst.

Washington
73 WAS

diffusa cottonii (Piper) R.L.Carr, ibid.

Basionym:
Lappula cottonii Piper, Bull. Torrey Bot. Club 29: 549 (1902)

Synonyms:
Hackelia cottonii (Piper) Brand

Oregon, Washington
73 ORE WAS

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