Ivesia lycopodioides var. megalopetala
Ivesia lycopodioides var. lycopodioides
clubmoss ivesia, clubmoss mousetail, Rock Creek or big-petal ivesia
clubmoss ivesia, clubmoss mousetail
ascending to erect, 1–3 dm.
decumbent to ascending, 0.3–1(–1.5) dm.
4–15 cm;
leaflets loosely overlapping, ± glabrous or sparsely short-hirsute, lobes linear to oblanceolate, 2–8 mm, apical setae 0–0.5 mm.
1–7 cm;
leaflets tightly overlapping, glabrous or sparsely short-hirsute, lobes ± orbiculate, ± 1 mm, apical setae 0(–0.5) mm.
1–2(–3).
0–1.
± open to congested, sometimes subcapitate, 5–20(–25)-flowered, 1–2.5(–3.5) cm diam.
usually ± capitate, 3–15(–20)-flowered, 0.5–1.5(–2) cm diam.
8–12 mm diam.;
petals broadly obovate, 3–5 × 2–4 mm;
filaments (1–)1.5–2 mm;
styles 2.5–3 mm.
6–9 mm diam.;
petals obovate, 2–3 × 1 mm;
filaments 0.8–1.2 mm;
styles 1–2 mm.
= 28.
Ivesia lycopodioides var. megalopetala
Ivesia lycopodioides var. lycopodioides
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.)
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.)
CA
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