Drymocallis pseudorupestris var. pseudorupestris
Drymocallis pseudorupestris var. saxicola
cliff drymocallis or wood beauty, cliff woodbeauty, Rocky Mountain sticky cinquefoil
(1–)2–4 dm, base (1.5–)2–3 mm diam., short hairs usually absent or sparse, sometimes moderately abundant.
0.6–2.5 dm, base 1–2(–3) mm diam., short hairs sparse to moderately abundant, sometimes absent.
(4–)7–16 cm, sparsely to moderately hairy (hairs to 1 mm), peglike-glandular, not bristly;
leaflet pairs (2–)3(–4);
terminal leaflet broadly obovate, (1–)2–3(–4) × 1.5–3 cm, teeth usually double, (5–)8–15 per side.
3–9(–15) cm, sparsely to densely hairy (hairs to 1.5 mm), usually densely peglike-glandular, not bristly;
leaflet pairs (2–)3(–4);
terminal leaflet broadly obovate-cuneate, 0.8–2(–4) × 0.7–2(–3) cm, teeth single or ± double, 3–8(–12) per side.
5–20 (proximal to 40) mm, not bristly, short hairs sparse to moderately abundant.
3–15 (proximal to 20) mm, usually not bristly, short hairs sparse to moderately abundant (sometimes absent).
(5–)10–40;
hypanthia and sepals not bristly;
epicalyx bractlets linear to elliptic, 3–6 × 1–2 mm;
sepals 5–7(–9) mm;
petals widely overlapping, not red-tinged, broadly obovate, 6–12 × 5–11 mm;
filaments 2–4 mm;
styles light reddish brown.
(2–)3–12(–20);
hypanthia and sepals not bristly or bristles less than 1 mm;
epicalyx bractlets linear-lanceolate to broadly elliptic, 2–5 × 1–1.5 mm;
sepals 4–6(–7) mm;
petals ± overlapping, not red-tinged, narrowly to broadly obovate, 4–8(–9) × 3–6(–8) mm;
filaments 1–2.5 mm;
styles usually golden brown, rarely reddish.
Drymocallis pseudorupestris var. pseudorupestris
Drymocallis pseudorupestris var. saxicola
Variety pseudorupestris is the tall, large-flowered extreme centered in the northern Rocky Mountains in Montana, extending into Alberta and to the Wind River Range in Wyoming. Some collections from northern Idaho are also tentatively included here. Unlike the other varieties, var. pseudorupestris occurs in grasslands as well as in more rocky habitats. It may intergrade with Drymocallis fissa, though petal color and leaflet number are usually distinct.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Variety saxicola accommodates the bulk of specimens previously placed in Potentilla glandulosa var. pseudorupestris, minus the extremes at the northeastern and southern ends of the species range. The circumscription here encompasses significant heterogeneity, which might be resolved into additional taxa upon further analysis [for example, the dwarfed high elevation form of P. glandulosa noted by N. H. Holmgren (1997b)]. Some collections from Alberta and Washington have petals as large as those of var. pseudorupestris but are here included in var. saxicola on the basis of stature. Plants from southwestern Idaho and southeastern Oregon combine features of D. lactea and D. pseudorupestris, some being atypically tall (to 5.5 dm) but with the vestiture and saxicolous preference of var. saxicola. In contrast, populations on Steens Mountain, Oregon, including the type of D. pumila Rydberg, have the typical habit of var. saxicola but the vestiture of D. lactea; their optimal placement is unresolved. In California, var. saxicola occurs in the Cascade Range (Mount Lassen, Mount Shasta) and extends sporadically south through the Sierra Nevada to Tulare County, intergrading with var. crumiana and D. lactea.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
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