Cuscuta salina |
Cuscuta rostrata |
|
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goldenthread, inland salt-marsh dodder, salt dodder, saltmarsh dodder |
beak dodder |
|
Stems | orange-yellow, slender. |
orange, coarse. |
Inflorescences | loose to dense, corymbiform; bracts at base of clusters 1, at base of pedicels 0 or 1, ovate-lanceolate to lanceolate, membranous, margins entire, apex acute. |
dense, paniculiform to glomerulate; bracts at base of clusters 1 or 2, at base of pedicels 0 or 1, ovate, membranous, margins entire, apex acute. |
Pedicels | (0.5–)1–5 mm. |
0.9–2 mm. |
Flowers | 5-merous, 2.5–4.5 mm, membranous, not papillate or corolla lobes papillate; calyx yellow, cylindric to narrowly campanulate, equaling corolla tube length, divided 1/2 its length, not reticulate, ± glossy, lobes lance-ovate to lanceolate, bases not overlapping, margins entire, midvein not carinate, apex acute to acuminate; corolla white, drying creamy white, 2.2–4 mm, tube cylindric-campanulate to obconic, 1.2–2 mm, not saccate, lobes spreading to reflexed, lance-oblong to lance-ovate, equaling corolla tube length, margins entire or irregular, apex acute to acuminate or cuspidate, sometimes appearing tridentate, straight; infrastaminal scales oblong to obovate, 1–1.7 mm, 4/5 corolla tube length, bridged at 0.2–0.4 mm, rounded, uniformly densely fimbriate, fimbriae 0.1–0.3 mm; stamens exserted at full anthesis, shorter than corolla lobes; filaments 0.3–0.7 mm; anthers 0.3–0.7 × 0.2–0.5 mm; styles uniformly filiform, 0.4–0.9 mm, shorter than ovary. |
5-merous, 4–6(–7) mm, membranous, not papillate; calyx yellow-brown, cupulate, 1/3–1/2 corolla tube length, divided 3/5–2/3 its length, not reticulate or shiny, lobes triangular-ovate to broadly ovate, bases overlapping, margins entire, midvein not carinate, apex obtuse; corolla white, drying creamy yellow to brownish, 3.8–5.8 mm, tube campanulate, 3–5 mm, not saccate, lobes suberect to spreading or reflexed, ovate, 1/4–1/3 corolla tube length, margins entire, apex rounded, straight; infrastaminal scales oblong to obovate, 1.5–2.8 mm, 1/2–2/3 corolla tube length, bridged at 0.5–0.7 mm, rounded, sparsely fimbriate at base, more dense in distal 1/2, fimbriae 0.3–0.9 mm; stamens exserted, shorter than to equaling corolla lobes; filaments 0.5–0.7 mm; anthers 0.6–0.8 × 0.4–0.5 mm; styles filiform, 1–1.5 mm, equaling ovary. |
Capsules | ellipsoid-ovoid, 1.6–2.5 × 1.7–2.4 mm, thickened and raised around relatively small interstylar aperture, not translucent, surrounded or capped by withered corolla, indehiscent. |
broadly ovoid, 4–7 × 4–5.5 mm, with stout beak 1–1.5 mm, raised and thickened around relatively small interstylar aperture, not translucent, surrounded by withered corolla, indehiscent. |
Seeds | 1, ± obcompressed, broadly ellipsoid to subglobose, 1.3–1.5 × 1.2–1.4 mm, hilum region subterminal. |
2–4, obcompressed to obscurely angled, ovoid to oblong, 1.7–2.5 × 1.3–1.6 mm, hilum region subterminal. |
2n | = 30. |
|
Cuscuta salina |
Cuscuta rostrata |
|
Phenology | Flowering Mar–Nov. | Flowering Jul–Sep. |
Habitat | Hosts: Atriplex, Centromadia, Cressa, Frankenia, Jaumea, Plantago, Salicornia, Salsola, Suaeda, Trichostema, Wislizenia. | forests, especially along streams. |
Elevation | 0–1000 m. (0–3300 ft.) | 800–2000 m. (2600–6600 ft.) |
Distribution |
AZ; CA; NV; UT; Mexico (Baja California, Baja California Sur, Sonora)
|
GA; KY; MD; NC; SC; TN; VA; WV |
Discussion | Cuscuta rostrata is distinguished by its relatively large flowers, beaked capsules, and Appalachian range. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
|
Source | FNA vol. 14. | FNA vol. 14. |
Parent taxa | Convolvulaceae > Cuscuta > subg. Grammica | Convolvulaceae > Cuscuta > subg. Grammica |
Sibling taxa | ||
Name authority | Engelmann in W. H. Brewer et al.: Bot. California 1: 536. (1876) | Shuttleworth ex Engelmann & A. Gray: Boston J. Nat. Hist. 5: 225. (1845) |
Web links |