Potentilla concinna |
Potentilla multisecta |
|||||||||
---|---|---|---|---|---|---|---|---|---|---|
early cinquefoil, elegant cinquefoil, red cinquefoil |
featherleaf cinquefoil, Great Basin cinquefoil |
|||||||||
Stems | 0.2–1.6 dm, lengths 1/2–3(–4) times basal leaves. |
0.5–2(–2.7) dm, lengths 1–2(–3) times basal leaves. |
||||||||
Basal leaves | usually palmate to subpalmate, sometimes subpinnate, 1(–2) pair of leaflets separate from terminal leaflets, distal leaflets distinct, 2–10(–15) cm; petiole 1–7(–10) cm, straight hairs ± abundant, ± appressed, 1–3 mm, stiff to weak, cottony hairs present, sometimes absent; leaflets 5(–7), on tip or to distal 1/4 of leaf axis, separate to ± overlapping, proximal pair separated from others by 0–5(–10) mm of leaf axis, central leaflets narrowly oblanceolate to obovate, 1–3(–7) × 0.4–1.2 cm, petiolules 0–2(–4) mm, distal 1/4 to whole margin incised 1/4–3/4+ to midvein, teeth (1–)2–5(–10) per side, separate, 1–6 mm, surfaces strongly to ± dissimilar, abaxial grayish to white, straight hairs ± abundant, ± appressed, 0.5–2 mm, weak to stiff (especially on veins), cottony hairs ± dense, rarely sparse, glands sparse or obscured, adaxial green to grayish, straight hairs common to abundant, appressed, 0.5–2 mm, mostly stiff, sometimes weak or mixed, cottony hairs absent or sparse, rarely common, glands ± sparse. |
usually palmate, sometimes subpalmate, 3–12(–15) cm; petiole 1–6(–13) cm, straight hairs ± abundant, ± appressed, 1–1.5 mm, stiff, cottony hairs absent, glands absent or sparse; leaflets (3–)5, usually on tip, sometimes to distal 1/4 of leaf axis, ± overlapping, proximal pair separated from others by 0–10 mm of leaf axis, central leaflets ± obovate, 1–2.5(–4) × (0.5–)1–1.5(–2) cm, petiolule 0–2 mm, distal 1/2+ of margins incised 3/4+ to midvein, teeth 2–5 per side, separate, 3–10(–14) mm, surfaces similar, green to grayish, straight hairs sparse to abundant, appressed, 1–1.5 mm, usually stiff, short crisped hairs sometimes present, cottony hairs absent, glands absent or sparse. |
||||||||
Inflorescences | (1–)2–12-flowered. |
(1–)2–6(–10)-flowered. |
||||||||
Pedicels | 1–2(–3) cm. |
1–3(–4) cm. |
||||||||
Flowers | epicalyx bractlets lanceolate to narrowly ovate to linear-elliptic, sometimes doubled, (2–)2.5–5 × 1–1.5 mm; hypanthium 3–6 mm diam.; sepals 3.5–6 mm, apex acute; petals (2.5–)4–9 × (2–)3–7 mm; filaments 1–3 mm, anthers 0.5–1 mm; carpels (7–)10–30, styles (1–)1.5–2 mm. |
epicalyx bractlets lanceolate-elliptic to narrowly ovate, 2–4 × 1–1.5 mm; hypanthium 3–5 mm diam.; sepals 3–5(–6) mm, apex ± acute; petals (2.5–)5–7 × (2–)4–5 mm; filaments 1–2 mm, anthers 0.6–1 mm; carpels 5–20, styles 2–3 mm. |
||||||||
Achenes | 1.5–2.5 mm, smooth to lightly rugose. |
2–2.5 mm, smooth. |
||||||||
2n | = 70. |
|||||||||
Potentilla concinna |
Potentilla multisecta |
|||||||||
Phenology | Flowering summer. | |||||||||
Habitat | Rocky slopes, dry meadows, in sagebrush scrub, pinyon-juniper woodlands, limber pine woodlands | |||||||||
Elevation | 2100–3500 m (6900–11500 ft) | |||||||||
Distribution |
AZ; CA; CO; MT; ND; NM; NV; OH; SD; UT; WY; AB; MB; SK
|
ID; MT; NV; UT; WY |
||||||||
Discussion | Varieties 3 (3 in the flora). Potentilla concinna is a relatively widespread, low-growing, early-blooming species with palmate to subpalmate, abaxially cottony leaves. Flowers often appear before leaves are fully expanded. The three varieties treated here have some level of biogeographic identity and are, therefore, given provisional taxonomic recognition. Some treatments have also included P. bicrenata, P. johnstonii, and P. macounii as varieties of P. concinna. Two Mexican species, P. leonina Standley and P. oblanceolata Rydberg, have also been treated as varieties of P. concinna by J. Soják (2006); they are retained as distinct species here, pending further research on Mexican Potentilla. Two other erstwhile varieties of P. concinna are now placed in separate sections: var. modesta (Rydberg) S. L. Welsh & B. C. Johnston (misapplied) in sect. Rubricaules as P. modesta, and var. rubripes (Rydberg) C. L. Hitchcock in sect. Subjugae, intermediate between P. saximontana and P. subjuga. Potentilla concinnaeformis Rydberg, considered to be a close relative of P. concinna by I. W. Clokey (1939), is more likely a hybrid between P. glaucophylla (sect. Graciles) and P. hippiana (sect. Leucophyllae). Hybrids also occur with P. multisecta, and probably other species as well. Potentilla concinna was first described in 1818 as P. humifusa Nuttall, a later homonym for P. humifusa Willdenow. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
The center of distribution of Potentilla multisecta is northeastern Nevada and northwestern Utah; the best disposition of more northern populations, which tend to be hairier and more compact, is unresolved. Populations in eastern Idaho, southwestern Montana, and western Wyoming are components of an unresolved zone of apparent intergradation that also includes P. ovina var. ovina (sect. Multijugae), P. glaucophylla var. perdissecta (sect. Graciles), and members of sect. Subjugae. Significant variation also exists among populations in Nevada and Utah. Not included here are some subpalmate collections from Saskatchewan that would key to P. multisecta (for example, A. Breitung 4045, MO, RM), whose optimum disposition has yet to be resolved. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
||||||||
Key |
|
|||||||||
Source | FNA vol. 9, p. 178. | FNA vol. 9, p. 181. | ||||||||
Parent taxa | Rosaceae > subfam. Rosoideae > tribe Potentilleae > Potentilla > sect. Concinnae | Rosaceae > subfam. Rosoideae > tribe Potentilleae > Potentilla > sect. Concinnae | ||||||||
Sibling taxa | ||||||||||
Subordinate taxa | ||||||||||
Synonyms | P. diversifolia var. multisecta | |||||||||
Name authority | Richardson: in J. Franklin, Narr. Journey Polar Sea, 739. (1823) | (S. Watson) Rydberg: Bull. Torrey Bot. Club 23: 397. (1896) | ||||||||
Web links |