Trifolium lemmonii |
Trifolium rollinsii |
|
---|---|---|
Lemmon's clover |
Rollins' clover |
|
Habit | Herbs perennial, subcaulescent, 10–20 cm, appressed-pubescent. | Herbs perennial, 5–20 cm, glabrous. |
Stems | cespitose, branched. |
ascending, cespitose, branched. |
Leaves | palmate; stipules ovate to lanceolate, 0.8–1 cm, margins irregularly lobed, apex acuminate; petiole 1–16.5 cm; petiolules 0.5 mm; leaflets 3–7, blades obovate or elliptic, 0.9–1.9 × 0.5–0.8 cm, base cuneate, veins prominent abaxially, margins coarsely dentate, apex rounded, acute, or mucronate, surfaces strigose. |
mostly basal, palmate; stipules ovate, 1 cm, margins entire, apex blunt; petiole 2–6 cm; petiolules to 1 mm; leaflets 3, blades obovate or rhombic, 0.6–1.3 × 0.6–1 cm, base cuneate, veins prominent, margins denticulate, apex rounded or retuse, apiculate, surfaces pale abaxially, glabrous. |
Inflorescences | terminal or axillary, 15–30-flowered, globose to subglobose, 2–3 × 2–3 cm; involucres a narrow membranous, dentate rim, to 0.2 mm. |
terminal or axillary, 8–15-flowered, appearing turned to one side, obconic, 1.3–1.8 × 1.1–2.5 cm, rachis prolonged beyond flowers, undivided or forked, often bearing sterile flower buds distally; involucres absent. |
Peduncles | sharply bent distally, just below flowers, 5–15 cm, surpassing leaves. |
curved distally proximal to flowers, 3–9 cm. |
Pedicels | reflexed in fruit, 2–3 mm; bracteoles minute, cuplike, membranous, minute. |
reflexed, 1–1.2 mm; bracteoles minute. |
Flowers | 11–13 mm; calyx purple, campanulate, 3–5 mm, slightly pilose, veins 5 (obscure), tube 2–2.5 mm, lobes subequal, subulate, orifice open; corolla white to pink, 10–12 mm, banner oblong-obovate, 10–12 × 4–5 mm, apex rounded, emarginate. |
10–13 mm; calyx purple, campanulate, 5–6 mm, glabrous, veins 10, tube 3.5 mm, lobes equal, subulate, 2 mm, orifice open; corolla purple, often with white tips, 15 mm, banner obovate, 11–13 × 5–6 mm, apex flared. |
Legumes | oblong, 3.2–3.5 mm. |
not seen. |
Seeds | 1, dark brown, ellipsoid, 2.5–3 mm, smooth. |
not seen. |
Trifolium lemmonii |
Trifolium rollinsii |
|
Phenology | Flowering Jul–Aug. | Flowering Jun–Aug. |
Habitat | Dry, rocky soils, roadsides. | Wind-swept alpine areas. |
Elevation | 1500–2500 m. (4900–8200 ft.) | 3000–3100 m. (9800–10200 ft.) |
Distribution |
CA; NV
|
NV |
Discussion | Populations of Trifolium lemmonii studied by S. J. Sommer (1999) fall into two groups, east (in Sierra County, California, and Washoe County, Nevada) and west (in Plumas County, California) of a gap where no suitable habitat is known; gene flow between these two regions appears to be limited. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Trifolium rollinsii is known from the Toiyabe Range in Lander and Nye counties in central Nevada. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 11. | FNA vol. 11. |
Parent taxa | Fabaceae > subfam. Faboideae > Trifolium | Fabaceae > subfam. Faboideae > Trifolium |
Sibling taxa | ||
Synonyms | Lupinaster lemmonii | T. kingii subsp. rollinsii, T. macilentum var. rollinsii |
Name authority | S. Watson: Proc. Amer. Acad. Arts 11: 127. (1876) — (as lemmoni) | J. M. Gillett: Madroño 21: 453, fig. 2. (1972) |
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