Trifolium vesiculosum |
Trifolium kingii |
|
---|---|---|
arrow-leaf clover |
King's clover |
|
Habit | Herbs annual, 15–70 cm, glabrous. | Herbs perennial, 2–40 cm, glabrous. |
Stems | erect or ascending, branched. |
erect or ascending, branched from root stock. |
Leaves | palmate; stipules linear-lanceolate, 1–3.5 cm, margins entire, apex subulate or setaceous; petiole 0.5–10 cm; petiolules 1 mm; leaflet 3, blades obovate to oblong, elliptic or lanceolate, 0.5–4 × 0.5–1.5 cm, base cuneate, veins prominent, thickened, margins spinulose-denticulate, apex apiculate, surfaces glabrous. |
palmate; stipules lanceolate, 0.8–3 cm, margins entire, apex acuminate; petiole 0.8–15 cm; petiolules 1 mm; leaflets 3, blades ovate, elliptic, or lanceolate, 0.5–8 × 0.4–2.6 cm, basal blades thick, base cuneate, veins prominent, margins sharply serrate, those of basal leaves entire, sometimes shortly setose, apex acute, obtuse, or obcordate, surfaces glabrous. |
Inflorescences | terminal or axillary, 50–100+-flowered, globose, ovoid, or oblong, 3–6 × 2–3.5 cm; involucres absent. |
terminal or axillary, 20–35-flowered, inverted or horizontal, depressed-globose or obovoid, 1.5–3.2 × 1.5–3 cm, rachis internodes not especially elongated; involucres absent. |
Peduncles | 1–12 cm. |
curved apically, 3–14 cm. |
Pedicels | absent; bracteoles lanceolate, 6–7 mm, acuminate. |
reflexed, 0.5 mm; bracteoles broadly ovate, blunt, minute. |
Flowers | 12–16 mm; calyx urceolate, not bilabiate, inflated in fruit, 6–10 mm, glabrous, veins 20–36, connected by transverse veins in fruit, tube 3–5 mm, lobes reflexed, subequal, subulate, as long as tube, orifice constricted; corolla white becoming pink, 12–15 mm, banner ovate, broadly clawed, striate, 12–15 × 2–4 mm, apex acute-acuminate. |
12–16 mm; calyx campanulate, 5–6 mm, usually sparsely pubescent, sometimes glabrate, veins 5, tube 2–3.5 mm, lobes equal, 1–1.5 times tube, subulate, curved, orifice open; corolla usually pink-purple, rarely white, 13–15 mm, banner lanceolate-ovate, 15–18 × 4–5 mm, apex rounded; ovaries glabrous. |
Legumes | ellipsoid, 2.5–2.5 mm, shorter than calyx. |
flattened, ellipsoid, 3–4 mm. |
Seeds | 2 or 3, brown, ovoid, 1–1.5 mm, roughened. |
1–3, brown, flattened ovoid, 2–2.2 mm, smooth. |
2n | = 16. |
= 16. |
Trifolium vesiculosum |
Trifolium kingii |
|
Phenology | Flowering Apr–Jul. | Flowering Jul–Aug. |
Habitat | Fields, roadsides, forest openings. | Alpine meadows, stream banks, open aspen and spruce-fir woods. |
Elevation | 0–1000 m. (0–3300 ft.) | 2200–3300 m. (7200–10800 ft.) |
Distribution |
AL; AR; CA; FL; GA; LA; MA; MO; MS; OK; OR; SC; TX; VA; WA; s Europe; e Europe; w Asia [Introduced in North America]
|
CO; NV; UT
|
Discussion | Trifolium vesiculosum was first introduced into cultivation in the United States in 1963 and is grown in southern and western states (J. D. Miller and H. D. Wells 1985). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Trifolium kingii is widely distributed throughout Utah (S. L. Welsh et al. 2008), is found in Mesa County southward to Dolores County in Colorado, and is found rarely in eastern 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 | ||
Name authority | Savi: Fl. Pis. 2: 165. (1798) — (as vessiculosum) | S. Watson: Botany (Fortieth Parallel), 59. (1871) |
Web links |
|