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.

"dm" is not declared as a valid unit of measurement for this property.

not carunculate +
greenish tan +  and light-brown +
1.2mm +  and 1.5mm +
longer than wide +
0.06 cm0.6 mm <br />6.0e-4 m <br /> (0.08 cm0.8 mm <br />8.0e-4 m <br />) +
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
Barbara Ertter +  and James L. Reveal +
(Rydberg) Ertter & Reveal +
compound +  and simple +
opposite +  and alternate +
3 cm30 mm <br />0.03 m <br /> (8 cm80 mm <br />0.08 m <br />) +
Horkelia scandularis +
20 cm200 mm <br />0.2 m <br /> (25 cm250 mm <br />0.25 m <br />) +
narrowly oblong +  and filiform planar +
reduced +
0.5 cm5 mm <br />0.005 m <br /> (20 cm200 mm <br />0.2 m <br />) +
reduced +
elongate +
free +  and distinct +
branched +  and simple +
White Mountains ivesia +
not +  and aggregated +
3000–4000 m +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
oblong +  and oval +
0.08 cm0.8 mm <br />8.0e-4 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
0.12 cm1.2 mm <br />0.0012 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
0.6 cm6 mm <br />0.006 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
unisexual +  and bisexual +
not +  and aggregated +
deciduous +
obliquely ovoid +  and reniform +
0.08 cm0.8 mm <br />8.0e-4 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
loose +  and capitate +
Moist slopes, fellfields, in high-elevation sagebrush communities, subalpine to alpine conifer woodlands, alpine tundra +
0.02 cm0.2 mm <br />2.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
3-15(-20)-flowered +
1 cm10 mm <br />0.01 m <br /> (2 cm20 mm <br />0.02 m <br />) +
crassinucellate +
opposite +  and alternate +
winter-marcescent +
deciduous +  and persistent +
, +  and distinct +
not +  and distinguishable +
short-hirsute +
0.1 cm1 mm <br />0.001 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
obovate +
1mm +  and 3mm +
verticillate +
toothed +, unlobed +  and lobed +
inferior +  and superior +
clustered +, biseriate +  and superposed +
0.7 cm7 mm <br />0.007 m <br /> (1.1 cm11 mm <br />0.011 m <br />) +
0.1 cm1 mm <br />0.001 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
0 (?) +  and 4 (?) +
free +  and distinct +
0.3 cm3 mm <br />0.003 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (4 cm40 mm <br />0.04 m <br />) +
Flowering summer. +
adnate +, free +, connate +  and distinct +
not arillate +
0.4 cm4 mm <br />0.004 m <br /> (0.45 cm4.5 mm <br />0.0045 m <br />) +
persistent +
free +  and distinct +
erect +  and spreading +
obtuse +  and acute +
0.2 cm2 mm <br />0.002 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
free +  and distinct +
branched +  and simple +
reddish +, grayish +  and green +
decumbent +  and ascending +
2 +  and 20 +
palmate +  and pinnate +
deciduous +
distinct +
subterminal +
filiform +
rough-thickened +
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
Ivesia lycopodioides subsp. scandularis +  and Potentilla lycopodioides var. scandularis +
Ivesia lycopodioides var. scandularis +
Ivesia lycopodioides +
variety +
inconspicuous +
stipelike +, elongate +, less flat +  and conic or turbinate +
enlarged +
glabrate +  and sparsely densely glandular-puberulent +