Trifolium ciliolatum |
Trifolium mucronatum |
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foothill clover, tree clover |
cusp clover |
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Habit | Herbs annual, 5–50 cm, glabrous or sparsely hairy. | |
Stems | erect, branched. |
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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. |
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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. |
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Peduncles | 2.5–12 cm. |
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Pedicels | erect becoming reflexed, 0.5–6 mm; bracteoles linear or cup-shaped, to 1 mm. |
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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. |
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Legumes | short-stipitate, ovoid, 5–10 mm. |
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Seeds | 1 or 2, brown, mottled, ovoid, 2.5–3 mm, smooth. |
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The | difficulty of distinguishing Trifolium mucronatum from T. wormskioldii is discussed under 33. T. wormskioldii. |
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Populations | in the United States represent T. mucronatum subsp. lacerum; in Mexico, subsp. lacerum is found in the north, subsp. mucronatum (petals pink or reddish, flowers 1.5–1.7 cm, inflorescences 2.5–3.5 cm diam.) is widespread, and subsp. vaughanae J. |
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m | .; m . |
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Gillett | (petals lavender or white, flowers 1.2–1.4 cm, inflorescences 1.5–2 cm diam.) is restricted to central Mexico (Guanajuato, San Luis Potosí) (J.; gillett 1980). |
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2n | = 16. |
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Trifolium ciliolatum |
Trifolium mucronatum |
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Phenology | Flowering Apr–Jun. | |
Habitat | Oak-pine chaparral, meadows, roadsides. | |
Elevation | 0–1500 m. (0–4900 ft.) | |
Distribution |
CA; OR; WA; Mexico (Baja California)
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w United States; sc United States; n Mexico
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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.) |
Subspecies 3 (1 in the flora). Trifolium involucratum Ortega (1797), which pertains here, is a later homonym of T. involucratum Lamarck (1778, = T. cherleri Linnaeus). (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 | ||
Subordinate taxa | ||
Synonyms | T. ciliatum var. discolor | |
Name authority | Bentham: Pl. Hartw., 304. (1849) | Willdenow ex Sprengel: Syst. Veg. 3: 208. (1826) |
Web links |