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Compilation
Douglasia montana

12 Images see all

Vitaliana montana unrecorded [family PRIMULACEAE]
Vitaliana montana unrecorded [family PRIMULACEAE]
Type? of Douglasia gormanii Constance [family PRIMULACEAE]
Vitaliana montana unrecorded [family PRIMULACEAE]
Vitaliana montana unrecorded [family PRIMULACEAE]
Type of Douglasia biflora A.Nelson [family PRIMULACEAE]
Isotype of Douglasia biflora A. Nelson [family PRIMULACEAE]
Filed as Douglasia gormanii Lindl. [family PRIMULACEAE]
Holotype of Douglasia biflora A. Nelson [family PRIMULACEAE]
Type of Douglasia montana A. Gray [family PRIMULACEAE]
Vitaliana montana unrecorded [family PRIMULACEAE]
Vitaliana montana unrecorded var. biflora [family PRIMULACEAE]
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Name

Identification
Douglasia biflora A.Nelson [family PRIMULACEAE ] Verified by Not on sheet, Douglasia montana A.Gray [family PRIMULACEAE ] (stored under name); Verified by Not on sheet,
Related name
  • Douglasia arctica
  • Douglasia biflora
  • Douglasia gormanii
  • Vitaliana montana
  • Douglasia montana
Common name
  • Rocky Mountain dwarf primrose, Flora of North America Vol. 8

Flora

Entry for Douglasia montana A. Gray [family PRIMULACEAE]
Herbarium
Flora of North America (FNA)
Collection
Flora of North America
Resource Type
Reference Sources
Entry From
Flora of North America, Vol 8,
Names
Douglasia montana A. Gray [family PRIMULACEAE], Proc. Amer. Acad. Arts, 7: 371. 1868 ,
Douglasia biflora A. Nelson [family PRIMULACEAE]
Douglasia montana var. biflora (A. Nelson) R. Knuth [family PRIMULACEAE]
Treatment Author(s)
Sylvia Kelso
Information
Plants loosely cespitose cushions with branched caudex. Stems prostrate to ascending with marcescent, imbricate, gray to light brown leaves. Leaves spreading to erect, thin; blade linear-subulate, 4–10 × 0.5 mm, margins entire, ciliolate, hairs simple, apex acute, surfaces glabrous. Scapes 5–20 mm, elongating little in fruit, densely hairy, hairs branched and stellate. Inflorescences 1–2-flowered, ebracteate or bracteate; bracts 1–3, subulate, 2–3 × 0.5 mm, hairy, hairs simple or forked. Pedicels present, 0.5–10 mm. Flowers: calyx 4–8 × 3–5 mm, glabrous or slightly hairy, hairs branched and stellate; corolla rose-pink, limb 6–10 mm diam., lobes 3–5 × 1–2 mm, margins erose or entire.
Phenology
Flowering early–mid summer
Altitude range
1000–3500 m
Distribution
USA IdahoUSA Mont.USA Wyo.Canada Alta.
Discussion
Specimens of Douglasia montana from Wyoming tend to have two flowers per inflorescence (once recognized as var. biflora); those from the northern part of the range tend to have only one. Because both one- and two-flowered inflorescences occur together on individual plants throughout the range, and no other morphological differences separate the forms, the varietal distinction is not recognized here.
In Alberta, Douglasia montana is known only from Waterton Lakes National Park near the Montana border.

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