Potentilla brevifolia |
Potentilla intermedia |
|
---|---|---|
short-leaf cinquefoil, sparse-leaf cinquefoil |
downy cinquefoil, potentille intermédiaire |
|
Stems | ascending to erect, 2–5 dm. |
|
Basal leaves | petiole 1–4 cm, eglandular hairs absent or sparse, spreading, less than 1 mm, weak, glands abundant. |
palmate or ternate. |
Cauline leaves | 3–8, proximal ones (3–)5–14 cm; proximal petioles (1–)2–10 cm, long hairs sparse to common, spreading to loosely appressed, 1–2 mm, weak, short or crisped hairs sparse to common, cottony hairs absent, glands absent or sparse; leaflets usually 5, central one oblanceolate to obovate, 2–4.5 × 1–2.5 cm, margins ± flat, distal 3/4+ usually unevenly, sometimes evenly, incised 1/3–2/3 to midvein (often with 1–2 incisions nearly to midvein), teeth 5–10 per side, surfaces similar or ± dissimilar, abaxial green to grayish green, long hairs sparse to common (especially on veins), 0.5–1.5 mm, soft to weak, short or crisped hairs ± sparse, cottony hairs absent, glands absent or sparse, adaxial long hairs absent or sparse, 1 mm, short hairs absent or sparse, crisped and cottony hairs absent, glands absent or sparse. |
|
Inflorescences | 20–100+-flowered. |
|
Pedicels | 0.5–1.5(–2.5) cm. |
|
Flowers | epicalyx bractlets lanceolate-elliptic to ovate, 2–4 × 0.8–2 mm; sepals 3–5(–7) mm, apex broadly acute to obtuse; petals 3.5–6.5 × 3–5 mm; filaments 1–2.5 mm, anthers 0.5–0.6 mm; carpels 10–15. |
epicalyx bractlets lanceolate to ovate or elliptic, 2–5 × 0.8–1.5 mm, lengths usually 2/3, sometimes 1, times sepals; sepals 3.5–6.5 mm, apex ± acute; petals 3–5 × 2–3 mm; filaments 0.8–2 mm, anthers 0.3–0.5 mm; carpels 40–70, styles 1–1.2 mm, scarcely papillate-swollen proximally. |
Achenes | 1–1.5 mm. |
1 mm, rugose. |
2n | = 28, 56 (Eurasia). |
|
Potentilla brevifolia |
Potentilla intermedia |
|
Phenology | Flowering summer. | Flowering late spring–summer. |
Habitat | Moist rocky slopes and talus, alpine grassy areas, subalpine conifer woodlands | Dry waste places along roadsides, ditches, other open sites, in grasslands, oak and conifer woodlands |
Elevation | 2500–3600 m (8200–11800 ft) | 0–300 m (0–1000 ft) |
Distribution |
ID; MT; NV; OR; WY
|
CT; IA; IN; MA; ME; MI; NH; NJ; NY; OH; PA; RI; VT; WI; NB; NF; NS; ON; PE; QC; SPM; Eurasia [Introduced in North America]
|
Discussion | Potentilla brevifolia is found mainly in alpine situations in the Pioneer, Sawtooth, Smoky, and White Cloud mountains of central Idaho; the Madison Range of western Montana; the Jarbidge Range of northeastern Nevada; the Blue, Steens, and Wallowa mountains of eastern Oregon; and the Teton Range of northwestern Wyoming. The elongate caudices are easily covered by moving soil and talus. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Potentilla intermedia is more common than P. inclinata at least in eastern Canada and New England. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 9, p. 188. | FNA vol. 9, p. 145. |
Parent taxa | Rosaceae > subfam. Rosoideae > tribe Potentilleae > Potentilla > sect. Brevifoliae | Rosaceae > subfam. Rosoideae > tribe Potentilleae > Potentilla > sect. Terminales |
Sibling taxa | ||
Synonyms | P. heidenreichii | |
Name authority | Nuttall: in J. Torrey and A. Gray, Fl. N. Amer. 1: 442. (1840) | Linnaeus: Syst. Nat. ed. 12, 2: 351. (1767): Mant. Pl. 1: 76. (1767) |
Web links |