Difference between revisions of "Ivesia lycopodioides var. megalopetala"

(Rydberg) Ertter & Reveal

Novon 17: 324. 2007.

Common names: Rock Creek or big-petaled ivesia
Endemic
Basionym: Horkelia gordonii var. megalopetala Rydberg Monogr. N. Amer. Potentilleae, 152. 1898
Synonyms: Ivesia lycopodioides subsp. megalopetala (Rydberg) D. D. Keck Potentilla lycopodioides var. megalopetala (Rydberg) J. T. Howell
Treatment appears in FNA Volume 9. Treatment on page 233. Mentioned on page 231, 232.
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Revision as of 20:36, 24 September 2019

Stems ascending to erect, 1–3 dm. Basal leaves 4–15 cm; leaflets loosely overlapping, ± glabrous or sparsely short-hirsute, lobes linear to oblanceolate, 2–8 mm, apical setae 0–0.5 mm. Cauline leaves 1–2(–3). Inflorescences ± open to congested, sometimes subcapitate, 5–20(–25)-flowered, 1–2.5(–3.5) cm diam. Flowers 8–12 mm diam.; petals broadly obovate, 3–5 × 2–4 mm; filaments (1–)1.5–2 mm; styles 2.5–3 mm.


Phenology: Flowering summer.
Habitat: Wet meadows, in sagebrush communities, subalpine conifer woodlands, alpine tundra
Elevation: 2300–3700 m

Discussion

Variety megalopetala is known from the southern Sierra Nevada from Mono and Tuolumne to Tulare counties. It tends to be the largest of the three varieties, with plants having larger flowers and longer and narrower leaflet lobes, which commonly have apical setae to 0.5 mm. Variety megalopetala is also more likely to occur in wet meadows along subalpine streams.

Selected References

None.

Lower Taxa

None.
Barbara Ertter +  and James L. Reveal +
(Rydberg) Ertter & Reveal +
Horkelia gordonii var. megalopetala +
Rock Creek or big-petaled ivesia +
2300–3700 m +
Wet meadows, in sagebrush communities, subalpine conifer woodlands, alpine tundra +
Flowering summer. +
Ivesia lycopodioides subsp. megalopetala +  and Potentilla lycopodioides var. megalopetala +
Ivesia lycopodioides var. megalopetala +
Ivesia lycopodioides +
variety +