Balsamorhiza rosea |
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rosy balsamroot |
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Habit | Plants 6–10(–30) cm. |
Basal leaves | blades gray-green, oblong to lance-ovate, 3–10(–20) × 2–5 cm (rarely pinnately lobed), bases weakly cordate or truncate, margins crenate to serrate, apices rounded to acute, faces finely strigose to moderately scabrous (usually gland-dotted as well). |
Involucres | hemispheric, 18–20 mm diam. |
Ray laminae | (becoming brick-red, often drying to pink or rose, and chartaceous) (8–)15(–25) mm (hispidulous abaxially; cypselae strigose). |
Outer phyllaries | deltate or ovate to lanceolate, 8–12 mm, not surpassing inner. |
Heads | usually borne singly. |
2n | = 38. |
Balsamorhiza rosea |
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Phenology | Flowering Apr–May. |
Habitat | Dry hills |
Elevation | 300–400 m (1000–1300 ft) |
Distribution |
OR; WA
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Discussion | In a hybrid swarm involving Balsamorhiza rosea and B. careyana, B. rosea remains relatively uncontaminated; the dominance among the hybrids appears to lie with B. careyana. A record of a hybrid between B. rosea and B. careyana from the Spokane area is doubtful. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 21, p. 96. |
Parent taxa | |
Sibling taxa | |
Synonyms | B. hookeri var. rosea |
Name authority | A. Nelson & J. F. Macbride: Bot. Gaz. 56: 478. (1913) |
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