Flora of North America species comparison

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Balsamorhiza rosea
Balsamorhiza rosea

rosy balsamroot
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
Phenology Flowering Apr–May.
Habitat Dry hills
Elevation 300–400 m [1000–1300 ft]
Distribution
map from FNA
OR; WA
[WildflowerSearch map]
[BONAP county map]
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.)
Parent taxa Asteraceae > tribe Heliantheae > subtribe Ecliptinae > Balsamorhiza > subg. Balsamorhiza
Sibling taxa
B. careyana, B. deltoidea, B. hispidula, B. hookeri, B. incana, B. lanata, B. macrolepis, B. macrophylla, B. sagittata, B. sericea, B. serrata
Synonyms B. hookeri var. rosea
Name authority A. Nelson & J. F. Macbride: Bot. Gaz. 56: 478. (1913)
Source FNA vol. 21, p. 96. Treatment author: William A. Weber.
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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