Cuscuta salina |
Cuscuta cuspidata |
|
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goldenthread, inland salt-marsh dodder, salt dodder, saltmarsh dodder |
cusp dodder |
|
Stems | orange-yellow, slender. |
pale yellow, medium. |
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. |
loose, paniculiform; bracts at bases of clusters and pedicels, and on pedicels, 2–4, ovate-orbiculate to ovate-triangular, membranous, margins ± irregularly serrulate, apex obtuse or acute to bluntly cuspidate. |
Pedicels | (0.5–)1–5 mm. |
2–5 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, 3.5–4.2 mm, membranous, not papillate; calyx creamy yellow, campanulate, 1/2 corolla tube length, divided to base or nearly so, finely reticulate, shiny, lobes ovate, bases overlapping, margins finely serrulate, midvein not carinate, apex acute to cuspidate; corolla white, drying creamy white, 3.3–4 mm, tube cylindric-campanulate, 2.2–3 mm, not saccate, lobes reflexed, ovate-oblong to ovate-triangular, 1/3–1/2 corolla tube length, margins entire, apex cuspidate-acute to obtuse, straight; infrastaminal scales oblong, rounded, 2–2.7 mm, 3/4–4/5 corolla tube length, bridged at 1–1.4 mm, ± uniformly densely fimbriate, fimbriae 0.3–0.6 mm; stamens exserted, slightly shorter than corolla lobes; filaments 0.6–0.9 mm; anthers 0.6–0.8 × 0.4–0.5 mm; styles filiform, 2–2.6 mm, longer than 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. |
globose to depressed-globose, 2.5–3 × 2.8–3.2 mm, with thickened and raised ridge or collar around relatively small interstylar aperture, translucent, capped 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, angled, subglobose to broadly ellipsoid, 1.1–1.4 × 1–1.1 mm, hilum region ± terminal. |
2n | = 30. |
= 30. |
Cuscuta salina |
Cuscuta cuspidata |
|
Phenology | Flowering Mar–Nov. | Flowering Jun–Oct. |
Habitat | Hosts: Atriplex, Centromadia, Cressa, Frankenia, Jaumea, Plantago, Salicornia, Salsola, Suaeda, Trichostema, Wislizenia. | prairies, sandy places, sometimes ruderal. |
Elevation | 0–1000 m. (0–3300 ft.) | 50–1500 m. (200–4900 ft.) |
Distribution |
AZ; CA; NV; UT; Mexico (Baja California, Baja California Sur, Sonora)
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AR; CO; IA; IL; IN; KS; KY; LA; MO; MS; ND; NE; NM; OK; SD; TX; UT
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Discussion | Reports of Cuscuta cuspidata from Connecticut and Wisconsin have not been verified. (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) | Engelmann: Boston J. Nat. Hist. 5: 224. (1845) |
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