Cuscuta epithymum |
Cuscuta gronovii |
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clover dodder, common dodder, thyme dodder |
common dodder, cuscute de gronovius, love dodder, scaldweed |
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Stems | yellow to orange, medium to coarse. |
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Inflorescences | loose or dense, paniculiform, sometimes originating endogenously; bracts at base of clusters 1, at base of pedicels 0 or 1, rarely 1 or 2(or 3) on pedicels, ovate to broadly triangular, membranous, margins entire or serrulate, apex acute to obtuse. |
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Pedicels | 1–4.5 mm. |
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Flowers | (4 or)5-merous, 2–4 mm, membranous, not papillate; calyx yellow-brown, cupulate or campanulate to narrowly campanulate, 1/2 to equaling corolla tube length, divided 1/2–2/3 its length, not reticulate or shiny, lobes ovate to suborbiculate or oblong, bases barely to notably overlapping, margins entire to serrulate, midvein not carinate, apex rounded or obtuse; corolla white fresh or dry, 1.8–4 mm, tube broadly to narrowly campanulate, 1–2.5(–3) mm, not saccate, lobes spreading to reflexed, mostly ovate, (1/4–)1/3 or 1/2 to equaling corolla tube length, margins entire, apex rounded to obtuse, straight; infrastaminal scales oblong, 1–2.5 mm, equaling corolla tube length, bridged at 0.4–0.8 mm, sparsely fimbriate, fimbriae 0.4–0.8 mm; stamens exserted, shorter than to equaling corolla lobes; filaments 0.4–0.7(–1) mm; anthers 0.3–0.6 × 0.3–0.4 mm; styles usually filiform, sometimes slightly subulate, (0.6–)1.2–2.2 mm, shorter than to equaling ovary. |
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Capsules | ovoid to conic-globose or subobpyriform, 2.5–4.5(–5.2) × 2–4(–5) mm, raised and ± thickened around relatively small to moderately large interstylar aperture, rarely apically narrowed into neck to 1 mm, not translucent, loosely surrounded or capped by withered corolla, indehiscent. |
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Seeds | 2–4, obcompressed to obscurely angled, subglobose to broadly ovoid, 1.3–1.7(–2.2) × 1.2–1.6 mm, hilum region subterminal. |
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Cuscuta epithymum |
Cuscuta gronovii |
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Distribution |
North America; West Indies [Introduced in Europe]
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Discussion | Varieties (subspecies) 2 (1 in the flora): introduced; Europe; introduced also in Mexico, South America, Asia, s Africa, Australia. Cuscuta epithymum subsp. kotschyi (Des Moulins) Arcangeli grows in southern Europe. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Varieties 3 (3 in the flora). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Key |
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Source | FNA vol. 14. | FNA vol. 14. | ||||||||
Parent taxa | Convolvulaceae > Cuscuta > subg. Cuscuta | Convolvulaceae > Cuscuta > subg. Grammica | ||||||||
Sibling taxa | ||||||||||
Subordinate taxa | ||||||||||
Synonyms | C. europaea var. epithymum | |||||||||
Name authority | (Linnaeus) Linnaeus: Amoen. Acad. 4: 478. (1759) — (as epithym.) | Willdenow in J. J. Roemer et al.: Syst. Veg. 6: 205. (1820) | ||||||||
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