Trifolium ciliolatum |
Trifolium cernuum |
|
---|---|---|
foothill clover, tree clover |
drooping clover, nodding clover |
|
Habit | Herbs annual, 5–50 cm, glabrous or sparsely hairy. | Herbs annual, 5–40 cm, glabrous. |
Stems | erect, branched. |
prostrate, ascending, or erect, branched. |
Leaves | palmate; stipules ovate-lanceolate, 1–1.5 cm, margins entire, sometimes ciliate, apex acuminate; petiole 1–13 cm; petiolules 0.5 mm; leaflets 3, blades elliptic to oblong or obovate, 0.8–3.5 × 0.5–1.5 cm, base cuneate, veins thickened, margins serrate proximally, obscurely denticulate distally, apex usually rounded or retuse, rarely acute, surfaces glabrous. |
palmate; stipules triangular-lanceolate, 0.9–1 cm, margins entire, apex long-acuminate, reflexing; petiole 1–10 cm; petiolules to 1 mm; leaflets 3, blades obovate or obcordate, 0.4–1.5 × 0.4–1 cm, base cuneate, veins prominent, recurved, margins coarsely dentate, apex rounded, truncate, or emarginate, surfaces glabrous. |
Inflorescences | axillary or terminal, 10–30-flowered, ovoid to subglobose, 0.7–2.2 × 0.5–2 cm; involucres a narrow rim, 0.5 mm, membranous, dentate. |
axillary or terminal, 8–20-flowered, depressed-globose, 0.9–1.1 × 0.8–1 cm; involucres absent. |
Peduncles | 2.5–12 cm. |
0.6–1.5 cm, becoming shorter distally. |
Pedicels | erect becoming reflexed, 0.5–6 mm; bracteoles linear or cup-shaped, to 1 mm. |
reflexed in fruit, 0.5–2 mm; bracteoles lanceolate, 1 mm. |
Flowers | 6–13 mm; calyx broadly campanulate, 5–11 mm, glabrous, veins 10, tube 1–5 mm, lobes unequal, elliptic to linear, margins hyaline, dentate or pectinate, ciliate, sinuses narrow, orifice open; corolla white, pink, or purple, 5–13 mm, banner broadly ovate, 6–13 × 4–7 mm, apex rounded, apiculate. |
4–5.5 mm; calyx tubular-campanulate, 4 mm, glabrous, veins 10, tube 2–2.2 mm, lobes subequal, triangular-subulate, margins green, pink, or purple, orifice open; corolla pink, 4–5 mm, banner obovate, 4–5 × 1–2 mm, apex deeply emarginate. |
Legumes | short-stipitate, ovoid, 5–10 mm. |
ovoid-ellipsoid, 4 mm. |
Seeds | 1 or 2, brown, mottled, ovoid, 2.5–3 mm, smooth. |
1–4, yellow, ovoid, 0.8–1 mm, minutely papillate. |
2n | = 16. |
= 16. |
Trifolium ciliolatum |
Trifolium cernuum |
|
Phenology | Flowering Apr–Jun. | Flowering May–Jul. |
Habitat | Oak-pine chaparral, meadows, roadsides. | Roadsides, lawns. |
Elevation | 0–1500 m. (0–4900 ft.) | 0–150 m. (0–500 ft.) |
Distribution |
CA; OR; WA; Mexico (Baja California)
|
CA; OR; SC; Asia; n Africa [Introduced in North America; introduced also in s Africa, Pacific Islands (New Zealand), Australia]
|
Discussion | Trifolium ciliolatum is relatively widespread in California and is found in scattered sites in Baja California, Oregon, and Washington. Trifolium ciliatum Nuttall (1848), which pertains here, is a later homonym of T. ciliatum E. D. Clarke (1813). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Trifolium cernuum is a relatively recent introduction in the flora area. Other than a record from wool mill waste in North Carolina in 1932, the earliest records are from the 1990s in California. (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 | T. ciliatum var. discolor | |
Name authority | Bentham: Pl. Hartw., 304. (1849) | Brotero: Phytogr. Lusit. Select. 1: 150, plate 62. (1816) |
Web links |
|