Drymocallis deseretica
Drymocallis arguta
Deseret drymocallis or wood beauty
cordilleran drymocallis, sticky cinquefoil, tall cinquefoil, tall drymocallis or wood beauty, tall wood-beauty
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, (1–)3–10 dm;
base 3–6 mm diam., ± densely, sometimes sparsely, 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.
usually moderately to densely hairy;
basal (6–)12–40 cm, leaflet pairs (3–)4–5;
terminal leaflet broadly elliptic-obovate, (2–)4–10 × (1–)2–4.5 cm, teeth mostly double, 15–30+ per side, apex obtuse to acute;
cauline 2–3, relatively well developed, leaflet pairs 2–4.
3–15(–20)-flowered, leafy, ± compact, (1/6–)1/5–1/3(–1/2) of stem, narrow, branch angles 10–20°.
10–40-flowered, not leafy, congested, sometimes more elongate in fruit, 1/10–1/5(–1/3) 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 15) mm, densely short-hairy, 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 ± elliptic, 4–6(–8) × 1–2 mm;
sepals spreading, (5–)7–10 mm, apex obtuse to acute, apiculate;
petals overlapping, spreading, cream-white to yellowish, broadly elliptic, (5–)7–9 × (5–)6–8 mm, ± equal to or slightly longer than sepals;
filaments 1.5–2.5 mm, anthers 0.7–1 mm;
styles thickened, 1 mm.
light brown, 1.2–1.5 mm.
light brown, 1 mm.
= 14.
Drymocallis deseretica
Drymocallis arguta
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 arguta is the only species of the genus occurring east of the Rocky Mountains, except for D. fissa in immediately adjacent prairies and the Black Hills of South Dakota. It is primarily a species of intact prairies and pasturelands throughout the Great Plains, extending as scattered populations in equivalent habitats throughout the northeastern states and adjacent provinces. Some of these states consider it a species of conservation concern (as Potentilla arguta, tall cinquefoil), and the sparsely hairy nature of some of these populations suggests that further taxonomic attention might be warranted. Drymocallis arguta occurs also in the Colorado Front Range, generally at elevations higher than D. fissa, with which it sometimes intergrades morphologically. It intergrades also with D. convallaria but tends to be larger, coarser, and more densely hairy with more acute leaflets.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
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