Flora of North America species comparison

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Ivesia lycopodioides var. megalopetala
Photo is of parent taxon

clubmoss ivesia, clubmoss mousetail, Rock Creek or big-petal ivesia
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.

Ivesia lycopodioides var. megalopetala
Phenology Flowering summer.
Habitat Wet meadows, in sagebrush communities, subalpine conifer woodlands, alpine tundra
Elevation 2300–3700 m (7500–12100 ft)
Distribution
from FNA
CA
[BONAP county map]
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.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 9, p. 233.
Parent taxa Rosaceae > subfam. Rosoideae > tribe Potentilleae > Ivesia > sect. Ivesia > Ivesia lycopodioides
Sibling taxa
I. lycopodioides var. lycopodioides, I. lycopodioides var. scandularis
Synonyms Horkelia gordonii var. megalopetala, I. lycopodioides subsp. megalopetala, Potentilla lycopodioides var. megalopetala
Name authority (Rydberg) Ertter & Reveal: Novon 17: 324. (2007)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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