Iliamna rivularis |
Iliamna corei |
|
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mountain hollyhock, streambank globe-mallow, streambank globe-mallow or wild hollyhock, streambank wild hollyhock |
Core's wild hollyhock, Peter's Mountain mallow |
|
Stems | 0.5–2 m; herbage sparsely stellate-hairy. |
1–1.5 m; herbage stellate-hairy. |
Leaf | blades deeply (3-), 5-, or 7-lobed, 5–20 cm wide, lobes triangular-ovate, broadest at base, base truncate to cordate, margins coarsely dentate. |
blades 5- or 7-lobed, 5–10 cm wide, terminal lobe triangular, base ± truncate, margins serrate to nearly entire, sinuses narrow, acute. |
Inflorescences | clusters forming interrupted spikes to corymbose racemes distally; involucellar bractlets linear-subulate, 3–6(–8) × 1 mm, 1/3–2/3 as long as calyx. |
2- or 3-flowered clusters, sometimes solitary flowers, forming interrupted spikes distally; involucellar bractlets filiform, 6–8 × 1 mm, 1/2–2/3 times as long as calyx. |
Flowers | calyx 5–8(–11) mm, lobes triangular-ovate to obtuse, 2.5–4(–5.5) mm, ± as wide as long, slightly exceeding tube; petals pinkish white to rose-purple, 1.8–2.5 cm. |
odorless; calyx 12 mm, lobes broadly lanceolate, long-acuminate, 6–8 mm, longer than wide, longer than tube; petals pale pink to deep rose, 2.5 cm. |
Seeds | (2 or)3 or 4, dark brown, 2 mm, puberulent. |
2(or 3), dark brown, 2.5 mm, puberulent. |
Schizocarps | 10–12 mm diam.; mericarps 8–12, 6–10 mm. |
12 mm diam.; mericarps 11–16, 10 mm. |
2n | = 66. |
|
Iliamna rivularis |
Iliamna corei |
|
Phenology | Flowering Jun–Aug. | Flowering late Jun–Aug. |
Habitat | Stream banks, meadows, open woodlands, disturbed places, foothills to mountain slopes | Open, shrubby woodlands in pockets of soil among sandstone outcrops |
Elevation | 1400–2900 m (4600–9500 ft) | 700–800 m (2300–2600 ft) |
Distribution |
CO; ID; MT; NM; NV; OR; UT; WA; WY; AB; BC
|
VA |
Discussion | Iliamna rivularis is variable in stature, pubescence, and leaf characters. Plants of Idaho and Wyoming with distally smaller (4–10 cm), three- to five-lobed blades, truncate bases, and inconspicuously toothed margins have been recognized as var. or subsp. diversa, but fall within the morphological range of the species as a whole. Iliamna rivularis is in the Center for Plant Conservation’s National Collection of Endangered Plants as I. rivularis var. rivularis. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Of conservation concern. Iliamna corei is known from a single locality on Peters Mountain at Narrows, Virginia. The species is considered critically imperiled globally. Whether it is distinct or not from I. remota, with which it is sometimes allied, has been problematic, but recent genetic studies support their recognition as distinct species (T. A. Bodo Slotta and D. M. Porter 2006). Iliamna corei is in the Center for Plant Conservation’s National Collection of Endangered Plants. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 6, p. 270. | FNA vol. 6, p. 271. |
Parent taxa | Malvaceae > subfam. Malvoideae > Iliamna | Malvaceae > subfam. Malvoideae > Iliamna |
Sibling taxa | ||
Synonyms | Malva rivularis, I. acerifolia, I. rivularis subsp. diversa, I. rivularis var. diversa, Phymosia acerifolia, P. rivularis, Sphaeralcea acerifolia, S. rivularis, S. rivularis var. diversa | I. remota var. corei |
Name authority | (Douglas) Greene: Leafl. Bot. Observ. Crit. 1: 206. (1906) | (Sherff) Sherff: Amer. J. Bot. 36: 503. (1949) |
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