Drymocallis lactea var. lactea

Synonyms: Drymocallis glandulosa subsp. nevadensis (S. Watson) Soják Potentilla glandulosa subsp. nevadensis (S. Watson) D. D. Keck P. glandulosa var. nevadensis S. Watson
Treatment appears in FNA Volume 9. Treatment on page 288. Mentioned on page 293, 295.

Stems (0.3–) 1–6 dm; base glabrate or sparsely to densely short-hairy, not or sparsely septate-glandular. Inflorescences 3–20-flowered, 1/5–2/5 (–3/4) of stem, narrow, branch angles 10–20°. Pedicels 5–10 mm, moderately to densely short-hairy, not or sparsely septate-glandular. Petals cream-white to pale yellowish. 2n = 14.


Phenology: Flowering May–Aug.
Habitat: Rocky, seasonally moist places
Elevation: 1600–3700 m

Discussion

Variety lactea is the most common and conspicuous Drymocallis at higher elevations in the central and southern Sierra Nevada, where it is recognized by its large cream-white to yellowish petals and narrow inflorescences. It also occurs in the San Jacinto Mountains and Transverse Ranges of southern California, and extends into the Intermountain Region from the mountains of southeastern Oregon to central Nevada.

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.

light-brown +
0.06 cm0.6 mm <br />6.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
obtuse;acute;acute;usually rounded;obtuse +
Barbara Ertter +
(Greene) Rydberg in N. L. Britton et al. +
compound +  and simple +
opposite +  and alternate +
20 cm200 mm <br />0.2 m <br /> (30 cm300 mm <br />0.3 m <br />) +
5 cm50 mm <br />0.05 m <br /> (20 cm200 mm <br />0.2 m <br />) +
0.1 cm1 mm <br />0.001 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
glabrate or +  and sparsely densely short-hairy +
Potentilla glandulosa var. lactea +
oblanceolate-oblong +
1 cm10 mm <br />0.01 m <br /> (25 cm250 mm <br />0.25 m <br />) +
coriaceous +
reduced +
free +  and distinct +
Calif. +, Nev. +  and Oreg. +
not +  and aggregated +
1600–3700 m +
0.2 cm2 mm <br />0.002 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
linear-lanceolate +  and narrowly elliptic +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (0.35 cm3.5 mm <br />0.0035 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 />) +
Rocky, seasonally moist places +
1/5 +  and 2/5-3/4 +
crassinucellate +
opposite +  and alternate +
marcescent +
winter-persistent +
glabrate +  and hairy +
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 +
0.5 cm5 mm <br />0.005 m <br /> (1 cm10 mm <br />0.01 m <br />) +
overlapping +
0.8 cm8 mm <br />0.008 m <br /> (1 cm10 mm <br />0.01 m <br />) +
0 (?) +  and 4 (?) +
cream-white +  and pale yellowish +
free +  and distinct +
obovate +
0.3 cm3 mm <br />0.003 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
Flowering May–Aug. +
adnate +, free +, connate +  and distinct +
in N. L. Britton et al., N. Amer. Fl. +
not arillate +
0.8 cm8 mm <br />0.008 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
persistent +
free +  and distinct +
0.3 cm3 mm <br />0.003 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
free +  and distinct +
branched +  and simple +
stramineous +, reddish +  and green +
1 +  and 20 +
narrow +  and wide +
palmate +  and pinnate +
narrowly;broadly-triangular-ovate +
deciduous +
distinct +
fusiform +
1 cm10 mm <br />0.01 m <br /> (?) +
Drymocallis glandulosa subsp. nevadensis +, Potentilla glandulosa subsp. nevadensis +  and P. glandulosa var. nevadensis +
Drymocallis lactea var. lactea +
Drymocallis lactea +
variety +
1 cm10 mm <br />0.01 m <br /> (4 cm40 mm <br />0.04 m <br />) +
broadly obovate +  and cuneate +
0.7 cm7 mm <br />0.007 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
horseshoe--shaped +
4 (?) +  and 10 (?) +
inconspicuous +
hemispheric +  and conic +
enlarged +
peglike-glandular +  and septate-glandular +