Drymocallis deseretica
Drymocallis convallaria
Deseret drymocallis or wood beauty
cordilleran drymocallis or wood beauty, cordilleran woodbeauty, cream cinquefoil, sharp tooth cinquefoil, valley cinquefoil, white cinquefoil
short.
short.
± tufted, (1.5–)2.5–6(–6.5) dm;
base 2–3(–4) diam., sparsely to densely septate-glandular.
usually solitary, sometimes tufted, 4–9(–10) dm;
base 2–5 mm diam., ± densely septate-glandular.
sparsely hairy;
basal (5–)7–20 cm, leaflet pairs (2–)3;
terminal leaflet broadly obovate to rhombic, (1.5–)2–4 × (1–)1.5–3 cm, teeth single or double, 5–9 per side, apex acute to obtuse;
cauline 1–2, well developed, leaflet pairs 2–3.
sparsely to moderately, rarely densely, hairy;
basal (10–)15–25(–30) cm, leaflet pairs (2–)3–4;
terminal leaflet usually obovate, sometimes elliptic, 3–5(–6) × 1.5–4.5 cm, teeth double, 9–16 per side, apex rounded-obtuse;
cauline (1–)2–4, well developed at least proximally, leaflet pairs usually 3.
3–15(–20)-flowered, leafy, ± compact, (1/6–)1/5–1/3(–1/2) of stem, narrow, branch angles 10–20°.
(5–)10–40-flowered, not leafy, congested to open, (1/8–)1/6–1/3(–1/2) of stem, narrow, branch angles 5–20°.
2–15 (proximal to 20) mm, predominantly short-hairy, often velutinous, not or sparsely to moderately septate-glandular.
1–5 (proximal to 25) mm, sparsely to ± densely short-hairy, predominantly septate-glandular.
opening widely;
epicalyx bractlets linear to lanceolate or narrowly elliptic, (2.5–)3–8 × 0.5–2(–3) mm;
sepals spreading, (5–)6–12(–15) mm, apex usually acute, sometimes obtuse;
petals rarely overlapping, spreading, cream-white to light yellow, narrowly to broadly obovate, (4–)6–10 × (2.5–)3.5–6(–7) mm, usually shorter than sepals;
filaments 1–3 mm, anthers 0.8–1 mm;
styles very thickened, 1 mm.
opening ± widely;
epicalyx bractlets narrowly elliptic, (2–)4–6 × 0.7–1.5 mm;
sepals ± spreading, (4–)5–8(–10) mm, apex acute;
petals not or scarcely overlapping, ± spreading, cream-white to pale yellow, obovate-elliptic, sometimes broadly so, (3–)5–8 × (2–)4–6 mm, ± equal to sepals;
filaments 1.5–2.5 mm, anthers 0.7–1 mm;
styles thickened, 0.8 mm.
light brown, 1.2–1.5 mm.
light brown, 1 mm.
Drymocallis deseretica
Drymocallis convallaria
Drymocallis deseretica is common in the Wasatch and western Uintah mountains of northern and central Utah, where it has usually been treated as Potentilla glandulosa var. intermedia (= D. glabrata) or P. glandulosa var. pseudorupestris (= D. pseudorupestris var. saxicola). It differs from both taxa in its more compact inflorescences, predominantly short-hairy pedicels, and sepals that conspicuously enlarge in fruit, which create a distinctive aspect. Comparable plants with shorter, obtuse sepals occur in the Raft River Mountains; their optimal placement remains to be determined. Inclusion of Wyoming in the species range is based on Goodding 1993 (UT) from Bridger Peak, Carbon County. Drymocallis deseretica intergrades with D. glabrata to the north and D. arizonica to the south, with the exact range yet to be determined.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Drymocallis convallaria is widespread in western North America, occurring mostly west of the Continental Divide from south-central Alaska to Arizona. It differs from most sympatric species in usually having a single thick stem, a narrow inflorescence, and cream-white to pale yellow petals, at most only slightly longer than the sepals.
Some collections from southern Idaho and northern Nevada that have very small petals in the size range of Drymocallis micropetala are included here on the basis of glandular pedicels. Excluded here are comparably small-petaled plants from the Warner Mountains of California and Oregon that have the aspect of D. convallaria but the blunter, redder achenes of D. glandulosa. Populations in northern Idaho and adjacent Washington that approach D. arguta in size and vestiture are provisionally treated as D. convallaria on the basis of leaflet shape. Specimens from New Mexico previously assigned to this taxon have largely been redetermined to D. arguta in the strict sense. See also discussions of Potentilla fissa var. major under 1. D. fissa, and of D. valida under the genus discussion. The illegitimate names P. glutinosa Nuttall ex Rydberg and D. glutinosa Rydberg have been applied most often to D. convallaria.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
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