Drymocallis glabrata
Drymocallis hansenii
Idaho drymocallis, Idaho drymocallis or wood beauty
Hansen's cinquefoil, Hansen's drymocallis or wood beauty, Yosemite woodbeauty
short.
short to elongate.
± tufted, (2–)2.5–6(–8) dm;
base 2–3 mm diam., moderately to densely septate-glandular.
usually solitary, sometimes loosely tufted, (3–)4–9 dm;
base (1–)2–4 mm diam., moderately to densely septate-glandular.
glabrate or sparsely hairy (hairier at northern margin of range);
basal (8–)20–30 cm, leaflet pairs 2–4;
terminal leaflet ± obovate, 2–6(–7) × (1–)1.5–3 cm, teeth ± double, 5–25 per side, apex obtuse to acute;
cauline 0–2, well developed, leaflet pairs 1–3.
sparsely to moderately hairy;
basal (7–)10–25(–30) cm, leaflet pairs 3–4;
terminal leaflet broadly obovate, 2–5(–6) × 1.5–3.5(–4) cm, teeth single or double, 6–11 per side, apex usually rounded, sometimes obtuse;
cauline 1–3, proximally well developed, leaflet pairs 2–4.
(5–)10–30(–60)-flowered, leafy, open, 1/6–2/3 of stem, wide, branch angles (20–)30–60°.
10–20(–40)-flowered, not leafy, open, 1/4–2/3 of stem, narrow, branch angles 10–30°.
5–40 (proximal to 45) mm, sparsely to moderately short-hairy, predominantly septate-glandular.
2–8 (proximal to 20) mm, predominantly short-hairy, sparsely to moderately septate-glandular.
opening widely;
epicalyx bractlets linear-oblanceolate, 2–6 × 0.5–1 mm;
sepals spreading, 4–7(–8) mm, apex usually acute, rarely obtuse;
petals ± overlapping, spreading, usually bright, sometimes pale, yellow, broadly obovate to round, 5–12 × (4–)5–11 mm, usually longer, rarely shorter, than sepals;
filaments 1.5–4 mm, anthers 0.7–1 mm;
styles thickened, 1 mm.
opening widely;
epicalyx bractlets linear to narrowly elliptic, 2–4 × 0.5–1 mm;
sepals spreading, 5–8 mm, apex acute to acuminate;
petals overlapping or not, spreading, cream-white to pale yellow, broadly obovate, 4–6 × 3–6 mm, usually longer than, sometimes equal to, sepals;
filaments 1.5–2.5(–3) mm, anthers 0.8–1 mm;
styles thickened, 0.8–1.2 mm.
brown to reddish, 1.2 mm.
light brown, 0.7–1 mm.
= 14.
Drymocallis glabrata
Drymocallis hansenii
Drymocallis glabrata is the common member of the genus in central Idaho and adjacent parts of neighboring states, characterized by acute, glabrate leaves, leafy, widely branched inflorescences, relatively long pedicels with slender, septate glands, linear-oblanceolate epicalyx bractlets, and relatively large, bright yellow petals. Plants from northern Idaho, at the lower elevational extreme, tend to be hairier than those elsewhere in the species range. The species enters Utah in Cache and Weber counties; most other Utah populations placed by S. L. Welsh et al. (1993) in this taxon (as Potentilla glandulosa var. intermedia) are treated here as D. deseretica.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
D. D. Keck (in J. Clausen et al. 1940) speculated that Drymocallis hansenii was the stabilized recombinant of D. glandulosa var. reflexa and D. lactea. Alternatively, it may represent the California counterpart of D. convallaria, because it tends to have tall, thick-based, single stems and narrow inflorescences. The species is centered in the west-central Sierra Nevada of California, usually occurring in moist meadows and equivalent habitats. Plants near Lake Tahoe, which provide the high-elevation extreme, combine the smaller stature of D. lactea and the glandular-septate stem bases of D. hansenii; their optimal taxonomic disposition is uncertain.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
OR
CalFlora
Flora NW
PNW Herbaria
WildflowerSearch
iNaturalist
USDA Plants Database
