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Drymocallis pseudorupestris

cliff drymocallis, cliff woodbeauty, false rock loving cinquefoil, Rocky Mountain sticky cinquefoil

Wasatch drymocallis or wood beauty

Caudex branches

elongate.

short to elongate.

Stems

openly tufted to loosely spaced, (0.3–)0.6–4 dm;

base 1–3 mm diam., ± densely septate-glandular.

solitary or ± tufted, (2.5–)3–6 dm;

base 2–4 mm diam., septate-glandular.

Leaves

glabrate or sparsely to ± densely hairy;

basal (2–)3–16 cm, leaflet pairs (2–)3–4(–5);

terminal leaflet broadly obovate-cuneate to flabellate, 0.2–3(–4) × 0.5–3 cm, teeth single or double, 2–15 per side, apex usually rounded to truncate, sometimes obtuse;

cauline 0–2, reduced, leaflet pairs 2–3.

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.

Inflorescences

2–40-flowered, not or ± leafy, open, 1/6–3/4(–4/5) of stem, ± wide, branch angles (10–)20–40(–50)°.

10–20(–30)-flowered, leafy, congested clusters terminating branches, 1/10–1/3(–1/2) of stem, narrow, branch angles 5–20°.

Pedicels

3–20 (proximal to 40) mm, not or sparsely to moderately short-hairy, predominantly septate-glandular.

1–5 mm, predominantly short-hairy, often velutinous, sparsely to moderately septate-glandular.

Flowers

opening widely;

epicalyx bractlets linear to elliptic, 2–6 × 1–2 mm;

sepals spreading, 4–7(–9) mm, apex acute to obtuse, apiculate;

petals overlapping or not, spreading, cream-white to pale yellow (red-tinged in var. crumiana), narrowly to broadly obovate, 4–12 × 3–11 mm, longer than sepals;

filaments 1–4 mm, anthers 0.7–1.2 mm;

styles thickened, 1–1.5 mm.

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.

Achenes

light brown, 1 mm.

reddish, 1.3 mm.

Drymocallis pseudorupestris

Drymocallis micropetala

Phenology Flowering May–Jul.
Habitat Mountain brush in canyons, pinyon-juniper woodlands
Elevation 1400–2600 m (4600–8500 ft)
Distribution
from FNA
CA; ID; MT; NV; OR; UT; WA; WY; AB; BC
[WildflowerSearch map]
[BONAP county map]
from FNA
UT
[BONAP county map]
Discussion

Varieties 3 (3 in the flora).

Drymocallis pseudorupestris occurs from Alberta and Washington to California and Utah, mostly in montane habitats; it is the species most often associated with rocky habitats, including talus slopes, for which its relatively elongate caudex branches are an obvious adaptation. Vestiture is dominated by abundant septate glands on stems and in the inflorescences. Except for var. pseudorupestris, which occurs only in the northeastern part of the species range, plants are relatively short, usually less than 2.5 dm. Three intergrading varieties accommodate the extremes at the northeastern and southern ends of the range.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

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.)

Key
1. Stems (1–)2–4 dm, bases (1.5–)2–3 mm diam.; basal leaves (4–)7–16 cm; terminal leaflets (1–)2–3(–4) cm, teeth usually double, (5–)8–15 per side; flowers (5–)10–40; petals 6–12 × 5–11 mm, widely overlapping; filaments 2–4 mm.
var. pseudorupestris
1. Stems (0.3–)0.6–2.5 dm, bases 1–2(–3) mm diam.; basal leaves (2–)3–9(–15) cm; terminal leaflets 0.2–2(–4) cm, teeth single or ± double, 2–8(–12) per side; flowers 2–12(–20); petals 4–8(–9) × 3–6(–8) mm, not or ± overlapping; filaments 1–2.5(–3) mm
→ 2
2. Basal leaves: leaflet pairs (2–)3(–4); hypanthia and sepals not bristly or bristles less than 1 mm; short hairs sparse to moderately abundant on stems and pedicels (sometimes absent); styles usually golden brown, rarely reddish.
var. saxicola
2. Basal leaves: leaflet pairs 3–4(–5); hypanthia and sepals prominently bristly, bristles 1–1.5 mm; short hairs absent or sparse on stems and pedicels; styles usually dark red, rarely golden brown.
var. crumiana
Source FNA vol. 9, p. 289. FNA vol. 9, p. 286.
Parent taxa Rosaceae > subfam. Rosoideae > tribe Potentilleae > Drymocallis Rosaceae > subfam. Rosoideae > tribe Potentilleae > Drymocallis
Sibling taxa
D. arguta, D. arizonica, D. ashlandica, D. campanulata, D. convallaria, D. cuneifolia, D. deseretica, D. fissa, D. glabrata, D. glandulosa, D. hansenii, D. lactea, D. micropetala, D. rhomboidea
D. arguta, D. arizonica, D. ashlandica, D. campanulata, D. convallaria, D. cuneifolia, D. deseretica, D. fissa, D. glabrata, D. glandulosa, D. hansenii, D. lactea, D. pseudorupestris, D. rhomboidea
Subordinate taxa
D. pseudorupestris var. crumiana, D. pseudorupestris var. pseudorupestris, D. pseudorupestris var. saxicola
Synonyms Potentilla pseudorupestris, D. glandulosa subsp. pseudorupestris, P. glandulosa subsp. pseudorupestris, P. glandulosa var. pseudorupestris, P. rupestris var. americana D. glandulosa subsp. micropetala, Potentilla glandulosa subsp. micropetala, P. glandulosa var. micropetala
Name authority (Rydberg) Rydberg: Monogr. N. Amer. Potentilleae, 194. (1898) Rydberg: in N. L. Britton et al., N. Amer. Fl. 22: 375. (1908)
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