Flora of North America species comparison

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Ivesia lycopodioides var. lycopodioides

Ivesia lycopodioides var. scandularis
Photo is of parent taxon

clubmoss ivesia, clubmoss mousetail
Photo is of parent taxon

clubmoss ivesia, clubmoss mousetail, White Mountains ivesia
Stems

decumbent to ascending, 0.3–1(–1.5) dm.

decumbent to ascending, 0.5–1.5 dm.
Basal leaves

1–7 cm;

leaflets tightly overlapping, glabrous or sparsely short-hirsute, lobes ± orbiculate, ± 1 mm, apical setae 0(–0.5) mm.

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.

0–1.
Inflorescences

usually ± capitate, 3–15(–20)-flowered, 0.5–1.5(–2) cm diam.

usually ± capitate, 3–15(–20)-flowered, 1–2(–3) cm diam.
Flowers

6–9 mm diam.;

petals obovate, 2–3 × 1 mm;

filaments 0.8–1.2 mm;

styles 1–2 mm.

6–12 mm diam.;

petals broadly obovate, 3–5 × 2–3 mm;

filaments 1.2–1.5 mm;

styles 2–3 mm.
2n

= 28.

Ivesia lycopodioides var. lycopodioides

Ivesia lycopodioides var. scandularis
Phenology Flowering summer. Flowering summer.
Habitat Dry rocky flats or slopes, fellfields, in high-elevation sagebrush communities, subalpine to alpine conifer woodlands, alpine tundra Moist slopes, fellfields, in high-elevation sagebrush communities, subalpine to alpine conifer woodlands, alpine tundra
Elevation 3000–4000 m (9800–13100 ft) 3000–4000 m (9800–13100 ft)
Distribution
from FNA
CA; NV
[BONAP county map]
from FNA
CA
[BONAP county map]
Discussion

Variety lycopodioides occurs in the Sierra Nevada from El Dorado and Alpine to Fresno counties, and on the Sweetwater Mountains of Mono County, California. The voucher reported by D. D. Keck (1938) from the Carson Range of Washoe County, Nevada, has not been located for confirmation. Of the three varieties, var. lycopodioides tends to have plants with the smallest leaflet lobes (ca. 1 mm) which lack apical setae. Plants also have more consistently simple caudices bearing a single rosette of glabrous or sparsely hairy leaves atop an enlarged, fleshy taproot.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

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.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 9, p. 232. FNA vol. 9, p. 232.
Parent taxa Rosaceae > subfam. Rosoideae > tribe Potentilleae > Ivesia > sect. Ivesia > Ivesia lycopodioides Rosaceae > subfam. Rosoideae > tribe Potentilleae > Ivesia > sect. Ivesia > Ivesia lycopodioides
Sibling taxa
I. lycopodioides var. megalopetala, I. lycopodioides var. scandularis
I. lycopodioides var. lycopodioides, I. lycopodioides var. megalopetala
Synonyms Horkelia scandularis, I. lycopodioides subsp. scandularis, Potentilla lycopodioides var. scandularis
Name authority unknown (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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