Trifolium mucronatum |
Trifolium appendiculatum |
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cusp clover |
large white-tip clover |
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Habit | Herbs annual, 7–80+ cm, glabrous. | |
Stems | ascending or erect, branched. |
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Leaves | palmate; stipules lanceolate or ovate, 0.3–1.3 cm, margins lacerate, apex acute to acuminate; petiole 2–7.3 cm; petiolules to 0.9 mm; leaflets 3, blades obovate-obcordate, elliptic, or obovate, 0.3–2.6 × 0.2–1.1 cm, base cuneate, veins thickened, margins denticulate, apex acute or retuse, surfaces glabrous. |
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Inflorescences | axillary, 4–25-flowered, subglobose or globose, 0.7–2 × 0.8–3 cm; involucres flat, 3.2–6.5 mm, incised 1/2 their length, lobes 4–7, lacerate. |
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Peduncles | 1.7–7.5 cm. |
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Pedicels | straight, to 0.5 mm; bracteoles absent. |
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Flowers | 7–25 mm; calyx campanulate, not slit between adaxial lobes, 3.5–7.4 mm, glabrous, veins 10–20, tube 1.5–3.3 mm, lobes subequal, narrowly triangular, margins usually entire, orifice open; corolla deep purple, usually white-tipped, 6.5–17 mm, banner obovate, 6.3–16 × 1.5–4 mm, apex emarginate. |
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Legumes | oblong or ellipsoid, 3.6–3.8 mm. |
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Seeds | 2, blackish brown, mottled, ovoid or ellipsoid, 1.9–2.8 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 mucronatum |
Trifolium appendiculatum |
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Phenology | Flowering Mar–Jun. | |
Habitat | Coastal areas, foothills, mountain meadows, ditches, wet areas. | |
Elevation | 0–1400 m. (0–4600 ft.) | |
Distribution |
w United States; sc United States; n Mexico
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CA; OR |
Discussion | 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.) |
Trifolium appendiculatum is found throughout California, although never east of the Sierra Nevada, and into southern Oregon. (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. appendiculatum var. rostratum, T. calophyllum, T. morleyanum, T. phaeocephalum, T. rostratum, T. splendens, T. trilobatum, T. variegatum var. major, T. variegatum var. rostratum, T. variegatum var. trilobatum | |
Name authority | Willdenow ex Sprengel: Syst. Veg. 3: 208. (1826) | Lojacono: Nuovo Giorn. Bot. Ital. 15: 181. (1883) |
Web links |