Balsamorhiza serrata
Balsamorhiza deltoidea
serrate balsam root, serrated balsamroot, serrrate balsamroot, tooth balsamroot
deltoid balsam root, Puget balsamroot
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.
blades green, deltate or rounded-deltate to triangular-deltate, 10–25+ × 7–15(–20) cm, bases cordate to sagittate, margins usually crenate to dentate (at least near bases), sometimes entire, apices acute, faces usually sparsely hirtellous to hispidulous, sometimes glabrous (usually gland-dotted, sometimes vernicose).
campanulate, 15–25 mm diam.
campanulate to hemispheric 15–30+ mm diam.
(20–)30–40.
20–50 mm.
lanceolate to lance-triangular, 10–22 mm, shorter than inner, apices acute to attenuate (margins ciliate).
oblong to lanceolate or lance-linear, (12–)30–40(–60) mm, usually much surpassing inner, apices acute.
usually borne singly.
usually borne singly, sometimes 2+.
= 38.
= 38.
Balsamorhiza serrata
Balsamorhiza deltoidea
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.)
Balsamorhiza deltoidea varies in the crenation of the leaf margins. The variability may stem from an old hybridization with B. hookeri or other species of Balsamorhiza. Otherwise, B. deltoidea shows little significant variability except where it hybridizes with B. careyana in the narrows of the Columbia River Gorge.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
- Local floras:
BC, 
CA, 
OR, 
WA - Local Web sites: CalFlora, CalPhotos,
Flora NW, 
PNW Herbaria, Turner Photog. 
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USDA Plants Database- LBJ Wildflower Center
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