Balsamorhiza serrata
Balsamorhiza hispidula
serrate balsam root, serrated balsamroot, serrrate balsamroot, tooth balsamroot
hairy balsamroot, hispid balsamroot
blades bright green, narrowly lance-elliptic to lanceolate, (6–)15–25(–40) × (3–)5–9+ cm (1–2-pinnatifid, primary lobes lanceolate to oblanceolate, 10–45 × 2–15 mm, secondary lobes usually divergent, antrorse), bases ± cuneate, ultimate margins usually entire (± revolute and/or thickened, often ciliate), apices acute to attenuate, faces ± hispidulous to hirtellous (gland-dotted as well; veins ± scabrous).
blades pale green to gray-green, lanceolate or lance-ovate, 5–15(–20+) × 2–5(–10) cm (earliest sometimes, later seldom, pinnately lobed, mostly toward tips), bases usually cuneate to subtruncate, sometimes cordate, margins usually dentate to serrate, apices acute, faces hirsutulous to scabrous.
campanulate, 15–25 mm diam.
campanulate to hemispheric 10–25 mm diam.
(20–)30–40.
15–40 mm (abaxially glabrous).
lanceolate to lance-triangular, 10–22 mm, shorter than inner, apices acute to attenuate (margins ciliate).
lanceolate to linear, 12–20 mm, not surpassing inner, apices acute to attenuate (margins often ciliate).
usually borne singly.
borne singly.
= 38.
Balsamorhiza serrata
Balsamorhiza hispidula
Balsamorhiza serrata hybridizes with B. careyana. Leaves of the hybrids tend to be prostrate rather than erect. Most of the hybrids display the larger size of B. careyana and lack the pubescence of the heads; serrata-like plants never develop more than a single head nor do they have the pubescence of the cypselae.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Distribution of Balsamorhiza hispidula is highly disrupted in the southern part of its range.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
CA
OR
WA
Flora NW
PNW Herbaria
WildflowerSearch
iNaturalist
USDA Plants Database
