Ivesia lycopodioides var. scandularis

(Rydberg) Ertter & Reveal

Novon 17: 324. 2007.

Common names: White Mountains ivesia
Endemic
Basionym: Horkelia scandularis Rydberg Monogr. N. Amer. Potentilleae, 150, plate 91, figs. 5–9. 1898
Synonyms: Ivesia lycopodioides subsp. scandularis (Rydberg) D. D. Keck Potentilla lycopodioides var. scandularis (Rydberg) J. T. Howell
Treatment appears in FNA Volume 9. Treatment on page 232.

Stems decumbent to ascending, 0.5–1.5 dm. Basal leaves 3–8 cm; leaflets tightly overlapping, short-hirsute, lobes obovate, 1–3 mm, apical setae (0–)0.5–1(–2) mm. Cauline leaves 0–1. Inflorescences usually ± capitate, 3–15(–20)-flowered, 1–2(–3) cm diam. Flowers 6–12 mm diam.; petals broadly obovate, 3–5 × 2–3 mm; filaments 1.2–1.5 mm; styles 2–3 mm.


Phenology: Flowering summer.
Habitat: Moist slopes, fellfields, in high-elevation sagebrush communities, subalpine to alpine conifer woodlands, alpine tundra
Elevation: 3000–4000 m

Discussion

Variety scandularis is the only variety that occurs in the White Mountains of Inyo and Mono counties, California; scattered populations occur also on the eastern side of the Sierra Nevada. Leaflet lobes are intermediate in size between those of the other two varieties and usually are tipped with a single bristle to 2 mm.

Selected References

None.

Lower Taxa

None.
Barbara Ertter +  and James L. Reveal +
(Rydberg) Ertter & Reveal +
Horkelia scandularis +
White Mountains ivesia +
3000–4000 m +
Moist slopes, fellfields, in high-elevation sagebrush communities, subalpine to alpine conifer woodlands, alpine tundra +
Flowering summer. +
Ivesia lycopodioides subsp. scandularis +  and Potentilla lycopodioides var. scandularis +
Ivesia lycopodioides var. scandularis +
Ivesia lycopodioides +
variety +