Cuscuta salina |
Cuscuta odontolepis |
|
---|---|---|
goldenthread, inland salt-marsh dodder, salt dodder, saltmarsh dodder |
Santa Rita Mountain dodder |
|
Stems | orange-yellow, slender. |
yellowish, slender. |
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-glomerulate; bracts at base of clusters 1, at base of pedicels and/or flowers 0 or 1, subround to broadly ovate, membranous, margins entire, apex acute to short-acuminate, papillate. |
Pedicels | (0.5–)1–5 mm. |
0–1 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, 4.5–5 mm, membranous, calyx and corolla lobes papillate; calyx straw yellow, campanulate, 1/2–3/4 corolla tube length, divided 2/3 its length, finely reticulate, not shiny, lobes ovate-triangular, bases overlapping, margins entire, midvein not carinate, apex acute to short-acuminate; corolla white, drying creamy white, 3.5–4.5 mm, tube cylindric, 2.2–2.8 mm, not saccate, lobes reflexed, ovate-triangular, shorter than to equaling corolla tube length, margins entire, apex acute to short-acuminate, straight; infrastaminal scales oblong-spatulate to obovate, 2–2.5 mm, 1/2 to equaling corolla tube length, bridged at 0.2–0.5 mm, rounded, densely fimbriate in distal 1/2, fimbriae 0.2–0.3 mm; stamens barely exserted, shorter than corolla lobes; filaments 0.3–0.7 mm; anthers 0.7–1.1 × 0.2–3 mm; styles filiform, 2.8–4 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, 2.9–4 × 3–3.2 mm, thickened and raised around inconspicuous interstylar aperture, translucent, loosely surrounded and capped by withered corolla, dehiscence circumscissile. |
Seeds | 1, ± obcompressed, broadly ellipsoid to subglobose, 1.3–1.5 × 1.2–1.4 mm, hilum region subterminal. |
3 or 4, angled, broadly ellipsoid, 1–1.2 × 0.6–0.8 mm, hilum region terminal. |
2n | = 30. |
|
Cuscuta salina |
Cuscuta odontolepis |
|
Phenology | Flowering Mar–Nov. | Flowering Aug–Oct. |
Habitat | Hosts: Atriplex, Centromadia, Cressa, Frankenia, Jaumea, Plantago, Salicornia, Salsola, Suaeda, Trichostema, Wislizenia. | Hosts: Amaranthus. |
Elevation | 0–1000 m. (0–3300 ft.) | 900–1500 m. (3000–4900 ft.) |
Distribution |
AZ; CA; NV; UT; Mexico (Baja California, Baja California Sur, Sonora)
|
AZ; Mexico (Chihuahua, Sonora) |
Discussion | Cuscuta odontolepis was used by the Aztecs to produce a yellow dye called zacatlaxcalli (B. de Sahagún 1950–1982). (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: Trans. Acad. Sci. St. Louis 1: 486. (1859) |
Web links |