Rock Garden Plants
Phlox richardsonii Hook. Microphlox, Sibiricae 
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FamilyPOLEMONIACEAE
Genus speciesPhlox richardsonii Hook. Microphlox, Sibiricae
Habitattundra
Altitudearctic-subarctic
Descriptionstems numerous, densely leafy, leaves broadly subulate, 5-6mm, erect, mucronate-acerose, white lanate, flowers sessile, calyx lanate, lobes of corolla ovate-orbiculate
Size3-5cm
Colorlilac
Bloomsummer
Ca
Typecarpet
Cultivationhumous, moist, but in winter drier, semi-shady site
alpine house, moist, humous soil, shading in summer
Propagationseed in spring, barely covered, germ. 1-3 months, 16-18°C
division in spring; cuttings in spring and in late summer
Territory Asia-Temperate
     Russian Far East
Northern America
     Subarctic America (Alaska , Nunavut , Northwest Territories , Yukon)
BibliographyPlants of the World online powo.science.kew.org
International Plant Names Index www.ipni.org
Comments

POLEMONIACEAE

Phlox richardsonii Hook., Fl. Bor.-Amer. [Hooker] 2(8): 73 (1837)

Synonyms:
Phlox sibirica richardsonii (Hook.) Hultén

arctic-subarctic
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richardsonii typicus ined.

Subarctic America
70 ASK NUN NWT YUK

richardsonii alaskensis (Jordal) Wherry, Baileya 4: 98 (1956)

Basionym:
Phlox alaskensis Jordal, Rhodora 54: 38 (1952)

Synonyms:
Phlox sibirica alaskensis (Jordal) B.Boivin

Russian Far East, Subarctic America
31 MAG 70 ASK NWT YUK

richardsonii borealis (Wherry) Locklear, J. Bot. Res. Inst. Texas 3(2): 647 (2009)

Basionym:
Phlox borealis Wherry, Morris Arbor. Monogr. 3: 126 (1955)

Synonyms:
Phlox sibirica borealis (Wherry) B.Boivin

Alaska
70 ASK

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