Flora of North America species comparison

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Drymocallis micropetala

Wasatch drymocallis or wood beauty
Caudex branches

short to elongate.
Stems

solitary or ± tufted, (2.5–)3–6 dm;

base 2–4 mm diam., septate-glandular.
Leaves

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

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

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

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

reddish, 1.3 mm.

Drymocallis micropetala
Phenology Flowering May–Jul.
Habitat Mountain brush in canyons, pinyon-juniper woodlands
Elevation 1400–2600 m (4600–8500 ft)
Distribution
from FNA
UT
[BONAP county map]
Discussion

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.)
Source FNA vol. 9, p. 286.
Parent taxa 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. pseudorupestris, D. rhomboidea
Synonyms D. glandulosa subsp. micropetala, Potentilla glandulosa subsp. micropetala, P. glandulosa var. micropetala
Name authority Rydberg: in N. L. Britton et al., N. Amer. Fl. 22: 375. (1908)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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