Difference between revisions of "Cuscuta cephalanthi"
Amer. J. Sci. Arts 43: 336, plate 6, figs. 1–6. 1842.
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|special status=Weedy;Illustrated;Endemic | |special status=Weedy;Illustrated;Endemic | ||
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|genus=Cuscuta | |genus=Cuscuta | ||
|subgenus=Cuscuta subg. Grammica | |subgenus=Cuscuta subg. Grammica | ||
Latest revision as of 13:14, 24 November 2024
Stems yellow-orange, medium. Inflorescences dense to loose, spiciform or paniculiform, commonly originating endogenously; bracts at base of clusters 1 or 2, at base of pedicels and/or flowers 0 or 1, ovate, membranous, margins entire or serrulate, apex obtuse to acute. Pedicels 0–1 mm. Flowers (3 or)4(or 5)-merous, 2–3 mm, membranous, not papillate; calyx yellow-brown, shallowly cupulate, 1/2 corolla tube length, divided 2/3 its length, not reticulate, not shiny, lobes oblong-ovate, bases slightly overlapping, margins entire or serrulate, midvein not carinate, apex obtuse; corolla white, drying creamy white, 1.8–2.8 mm, tube cylindric-campanulate to cylindric, 1.1–2.2 mm, not saccate, lobes spreading, ovate, 1/3–1/2 corolla tube length, margins entire, apex obtuse, straight; infrastaminal scales oblong, rounded, 0.9–1.7 mm, shorter than to equaling corolla tube length, bridged at 0.2–0.4 mm, sparsely fimbriate, more densely distally, fimbriae 0.1–0.3 mm; stamens included to slightly exserted, equaling corolla lobes; filaments 0.2–0.4 mm; anthers 0.2–0.4 × 0.2–0.4 mm; styles filiform or narrowly terete, (0.6–)1–2 mm, equaling or longer than ovary. Capsules depressed-globose to globose, 2.5–3.2(–4) × 2–4 mm, not thickened or raised around relatively small interstylar aperture, not translucent, capped by withered corolla, indehiscent. Seeds 1 or 2, obcompressed, broadly ovoid, 1.4–2 × 1.3–1.4 mm, hilum region terminal. 2n = 60.
Phenology: Flowering Jun–Oct.
Habitat: stream and lake shores, marshes, and floodplain forests.
Elevation: 0–1500 m.
Distribution
Alta., B.C., Man., N.B., N.S., Ont., Ariz., Ark., Calif., Conn., D.C., Ga., Idaho, Ill., Ind., Iowa, Kans., Ky., Maine, Mass., Mich., Minn., Nebr., Nev., N.J., N.Mex., N.Y., N.C., N.Dak., Ohio, Okla., Oreg., Pa., R.I., S.C., S.Dak., Tenn., Tex., Utah, Va., Wash., Wis.
Discussion
Selected References
None.