Drymocallis micropetala
Drymocallis ashlandica
Wasatch drymocallis or wood beauty
Ashland cinquefoil, Mazama drymocallis or wood beauty
short to elongate.
short.
solitary or ± tufted, (2.5–)3–6 dm;
base 2–4 mm diam., septate-glandular.
tufted, (1–)2–5 dm;
base 2–3 mm diam., ± densely septate-glandular.
moderately hairy;
basal (6–)10–24 cm, leaflet pairs 2–3;
terminal leaflet obovate, 2–5 × 1.5–4 cm, teeth double, (5–)8–12(–15) per side, apex obtuse;
cauline 1–3, well developed, leaflet pairs 2–3.
moderately to ± densely hairy;
basal 6–16 cm, leaflet pairs 2–3(–4);
terminal leaflet broadly obovate, 1.5–4 × 1–3 cm, teeth ± double, 7–12 per side, apex rounded;
cauline 0–2, moderately developed, leaflet pairs 2–3.
10–20(–30)-flowered, leafy, congested clusters terminating branches, 1/10–1/3(–1/2) of stem, narrow, branch angles 5–20°.
5–15(–20)-flowered, not leafy, congested to deeply branched, 1/10–2/3 or less of stem, usually narrow, rarely ± wide, branch angles (5–)10–20(–30)°.
1–5 mm, predominantly short-hairy, often velutinous, sparsely to moderately septate-glandular.
2–10 (proximal to 30) mm, sparsely to moderately short-hairy, predominantly septate-glandular, often obscuring other vestiture.
opening widely;
epicalyx bractlets linear to oblanceolate-elliptic, 2–4(–6) × (0.5–)1–1.5 mm;
sepals spreading, 4–7(–9) mm, apex obtuse;
petals not overlapping, spreading, cream-white, obovate-elliptic, 2–5 × 1.5–3.5 mm, shorter than sepals;
filaments 1–2 mm, anthers 0.5–0.8 mm;
styles thickened, 1 mm.
opening widely;
epicalyx bractlets linear to broadly elliptic, 3–5 × 1–2 mm;
sepals spreading, 5–7(–9) mm, apex acute;
petals overlapping, spreading, light yellow, broadly obovate, 5–9 × 4–7 mm, equal to or longer than sepals;
filaments 1.5–5 mm, anthers 0.7–1.2 mm;
styles ± thickened, 1 mm.
reddish, 1.3 mm.
light brown, 1 mm.
Drymocallis micropetala
Drymocallis ashlandica
Drymocallis micropetala is poorly known; it combines the aspect and narrow inflorescence of D. convallaria, the small petals of D. glandulosa, and the predominantly short-hairy pedicels of D. deseretica. Plants with equally small petals that occur sporadically throughout the range of D. convallaria are predominantly septate-glandular rather than short-hairy on the petioles and are not included here. As circumscribed here, D. micropetala occurs only in the Wasatch Range of north-central Utah, from Juab to Rich counties; it is possibly of conservation concern.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
The name Potentilla glandulosa subsp. ashlandica was misapplied to Drymocallis lactea var. austiniae (B. Ertter 1993); as circumscribed here, D. ashlandica is a poorly known species restricted to the Cascade and Siskiyou ranges of southwestern Oregon. It very likely also occurs in adjacent California; no collections from there are known. Drymocallis ashlandica differs from most sympatric populations of D. lactea var. austiniae and resembles D. pseudorupestris in its densely glandular inflorescences, which tend to be more densely congested and/or narrower than those of the other two species.
Drymocallis ashlandica was described by Greene as Potentilla ashlandica, and by Howell as P. ciliata (a later homonym), both based on a collection by Howell from the Siskiyou Mountains near Ashland, Oregon. The circumscription here, which matches that of D. D. Keck (in J. Clausen et al. 1940) and M. E. Peck (1961), encompasses populations from near Oregon Caves and Ashland in the Siskiyou Mountains to near McKenzie Bridge, Lane County, and Sparks Lake, Deschutes County. It is currently known from relatively few collections, mostly from the Crater Lake area, and may prove to be of conservation concern.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
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