Drymocallis deseretica

Ertter

J. Bot. Res. Inst. Texas 1: 41, fig. 2. 2007.

Common names: Deseret drymocallis or wood beauty
Endemic
Treatment appears in FNA Volume 9. Treatment on page 291. Mentioned on page 282, 284, 286.

Caudex branches short. Stems ± tufted, (1.5–) 2.5–6 (–6.5) dm; base 2–3 (–4) diam., sparsely to densely septate-glandular. Leaves 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. Inflorescences 3–15 (–20) -flowered, leafy, ± compact, (1/6–) 1/5–1/3 (–1/2) of stem, narrow, branch angles 10–20°. Pedicels 2–15 (proximal to 20) mm, predominantly short-hairy, often velutinous, not or sparsely to moderately septate-glandular. Flowers 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. Achenes light-brown, 1.2–1.5 mm.


Phenology: Flowering (May–)Jun–Sep.
Habitat: Openings among sagebrush, aspen, fir, and/or spruce forests, often where moist or rocky, below cliffs
Elevation: 2000–3300 m

Discussion

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.

Selected References

None.

Lower Taxa

None.

"thin" is not a number."dm" is not declared as a valid unit of measurement for this property."dm" is not declared as a valid unit of measurement for this property.

... more about "Drymocallis deseretica"
light-brown +
1.2mm +  and 1.5mm +
0.08 cm0.8 mm <br />8.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
obtuse;acute;acute;obtuse +
Barbara Ertter +
Ertter +
compound +  and simple +
opposite +  and alternate +
5 cm50 mm <br />0.05 m <br /> (7 cm70 mm <br />0.07 m <br />) +
7 cm70 mm <br />0.07 m <br /> (20 cm200 mm <br />0.2 m <br />) +
2 cm20 mm <br />0.02 m <br /> (3 cm30 mm <br />0.03 m <br />) +
oblanceolate-oblong +
1 cm10 mm <br />0.01 m <br /> (25 cm250 mm <br />0.25 m <br />) +
coriaceous +
reduced +
free +  and distinct +
Deseret drymocallis or wood beauty +
Utah +  and Wyo. +
not +  and aggregated +
2000–3300 m +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
linear +  and lanceolate or narrowly elliptic +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
0.1 cm1 mm <br />0.001 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
unisexual +  and bisexual +
not +  and aggregated +
deciduous +
less;10;80 +
0.07 cm0.7 mm <br />7.0e-4 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
Openings among sagebrush, aspen, fir, and/or spruce forests, often where moist or rocky, below cliffs +
leafy +  and 3-15(-20)-flowered +
1/6 +  and 1/5-1/3-1/2 +
crassinucellate +
opposite +  and alternate +
marcescent +
winter-persistent +
overlapping +  and not confluent +
elliptic-ovate +  and flabellate or rhombic +
toothed +, or +, flat +, entire +  and more or less toothed +
inferior +  and superior +
clustered +, biseriate +  and superposed +
velutinous +  and short-hairy +
0.2 cm2 mm <br />0.002 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
overlapping +
0.4 cm4 mm <br />0.004 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
0 (?) +  and 4 (?) +
0.6 cm6 mm <br />0.006 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
cream-white +  and light yellow +
free +  and distinct +
6mm;10mm +
obovate +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
Flowering (May–)Jun–Sep. +
adnate +, free +, connate +  and distinct +
J. Bot. Res. Inst. Texas +
not arillate +
1.2 cm12 mm <br />0.012 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
persistent +
free +  and distinct +
0.6 cm6 mm <br />0.006 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
free +  and distinct +
branched +  and simple +
stramineous +, reddish +  and green +
1 +  and 20 +
palmate +  and pinnate +
narrowly;broadly-triangular-ovate +
deciduous +
distinct +
fusiform +
1 cm10 mm <br />0.01 m <br /> (?) +
Closterostyles +, Potentilla sect. Closterostyles +, Potentilla subg. Closterostyles +  and Potentilla sect. Rupestres +
Drymocallis deseretica +
Drymocallis +
species +
1.5 cm15 mm <br />0.015 m <br /> (2 cm20 mm <br />0.02 m <br />) +
1 cm10 mm <br />0.01 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
2 cm20 mm <br />0.02 m <br /> (4 cm40 mm <br />0.04 m <br />) +
broadly obovate +  and rhombic +
1.5 cm15 mm <br />0.015 m <br /> (3 cm30 mm <br />0.03 m <br />) +
horseshoe--shaped +
5 (?) +  and 9 (?) +
inconspicuous +
hemispheric +  and conic +
enlarged +
peglike-glandular +  and septate-glandular +