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.
Barbara Ertter +
(Greene) Rydberg +
Potentilla glandulosa var. lactea +
Calif. +, Nev. +  and Oreg. +
1600–3700 m +
Rocky, seasonally moist places +
Flowering May–Aug. +
in N. L. Britton et al., N. Amer. Fl. +
Drymocallis glandulosa subsp. nevadensis +, Potentilla glandulosa subsp. nevadensis +  and P. glandulosa var. nevadensis +
Drymocallis lactea var. lactea +
Drymocallis lactea +
variety +