Cuscuta suksdorfii |
Cuscuta europaea |
|
---|---|---|
mountain dodder |
greater dodder |
|
Stems | yellow, slender. |
yellowish to reddish, medium to coarse. |
Inflorescences | loose, umbelliform; bracts at base of clusters 1, at base of pedicels and/or flowers 0 or 1, ovate-lanceolate, membranous, margins entire, apex acute. |
bracts ovate to lanceolate, membranous, margins entire, apex obtuse to acute. |
Pedicels | 0–2 mm. |
0–1.5 mm. |
Flowers | 4- or 5-merous, 2.8–3.3 mm, membranous, not papillate; calyx slightly zygomorphic, creamy yellow, broadly campanulate, 1-1/3–1-1/2 corolla tube length, divided 1/2–3/5 its length, not reticulate or shiny, lobes ovate, bases not overlapping, margins entire, midvein not carinate, apex long-attenuate; corolla white, drying creamy yellow, 2.6–3 mm, tube campanulate, 1.2–1.5 mm, not saccate, lobes suberect, triangular-ovate, longer than corolla tube length, margins entire, apex lance-attenuate, straight; infrastaminal scales relatively poorly developed, oblong, 0.6–1 mm, 1/2–3/4 corolla tube length, bridged at 0.2–0.3 mm, usually reduced to denticulate wings, rarely 2-fid with 1–3 fimbriae on each side of filament attachments, 0.1–0.2 mm; stamens included or barely visible through corolla sinuses, shorter than corolla lobes; filaments 0.2–0.5 mm; anthers 0.2–0.4 × 0.2–0.3 mm; styles terete to slightly subulate, 0.3–0.7 mm, 1/4 ovary length. |
4(or 5)-merous, 3–5 mm, fleshy; papillae absent; calyx creamy yellow to brownish, cupulate to obconic, shorter than to equaling corolla tube length, divided 1/2–3/4 its length, not reticulate or shiny, lobes ovate to triangular-ovate, bases not overlapping, margins entire, apex obtuse to rounded; corolla white or pink, drying yellow-brown, campanulate to urceolate, 2.2–4.7 mm, tube 1.7–3.3 mm, not saccate, lobes usually erect, sometimes spreading, triangular-ovate, 1/3–1/2 corolla tube length, margins entire, apex obtuse to truncate, straight; infrastaminal scales oblong, often 2-fid, 1–1.2 mm, 1/2 corolla tube length, bridged at 0.4–0.6 mm, short-fimbriate apically, fimbriae 0.1–0.3 mm; stamens included, shorter than corolla lobes; filaments 0.2–0.5 mm; anthers 0.2–0.5 × 0.2–0.4 mm; styles terete; style plus stigmas 0.6–1.2 mm, shorter than ovary; stigmas cylindric to clavate, 0.3–0.6 mm, shorter than to equaling styles. |
Capsules | ellipsoid-ovoid, ovoid-conic, or globose to depressed-globose, 2–3.2 × 2–3.6 mm, not thickened or raised around relatively small interstylar aperture, translucent, proximal 1/2 surrounded by withered corolla, indehiscent. |
ovoid, globose-conic, or pyriform, 1.6–4 × 2–4 mm, not thickened or raised around interstylar aperture, ± translucent, capped by withered corolla. |
Seeds | 2–4, obcompressed, subglobose, 0.8–1.1 × 0.8–1 mm, hilum subterminal. |
2–4, angled, subglobose, broadly ellipsoid, or ovoid, 1.2–1.5 × 0.9–1.3 mm, hilum region terminal. |
2n | = 14. |
|
Cuscuta suksdorfii |
Cuscuta europaea |
|
Phenology | Flowering Jul–Sep. | Flowering Jul–Sep. |
Habitat | mountain meadows. | it can parasitize numerous other hosts both herbaceous and woody. |
Elevation | 1500–2600 m. (4900–8500 ft.) | 20–200 m. (100–700 ft.) |
Distribution |
CA; OR; WA
|
ME; NY; Europe [Introduced in North America; introduced also in South America, Asia (China, Japan), n Africa] |
Source | FNA vol. 14. | FNA vol. 14. |
Parent taxa | Convolvulaceae > Cuscuta > subg. Grammica | Convolvulaceae > Cuscuta > subg. Cuscuta |
Sibling taxa | ||
Synonyms | C. salina var. acuminata, C. suksdorfii var. subpedicellata | |
Name authority | Yuncker: Mem. Torrey Bot. Club 18: 167. (1932) | Linnaeus: Sp. Pl. 1: 124. (1753) |
Web links |
|