Cuscuta suksdorfii |
Cuscuta suaveolens |
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mountain dodder |
fimbriate dodder, fringe dodder |
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Stems | yellow, slender. |
yellow-orange, slender. |
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. |
loose, racemiform or corymbiform; bracts at base of clusters 1, at base of pedicels 0 or 1, ovate, membranous, margins entire, apex acute. |
Pedicels | 0–2 mm. |
2–5(–7 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. |
5-merous, 3–5 mm, membranous, not papillate; calyx light brown to reddish, cupulate-turbinate, 1/2–3/4 corolla tube length, divided 1/2 its length, not reticulate or shiny, lobes triangular-ovate, bases scarcely overlapping, margins entire, revolute, midvein not carinate, apex obtuse to subacute; corolla white, drying creamy or reddish, 2.8–4.7 mm, tube campanulate, 2–3 mm, not saccate, lobes erect to spreading, triangular-ovate, 1/2 corolla tube length, margins entire, apex acute, inflexed; infrastaminal scales oblong-ovate, 1.8–2.8 mm, equaling corolla tube length, bridged at 0.8–1.4 mm, rounded, uniformly densely fimbriate, fimbriae 0.3–0.5 mm; stamens slightly exserted, shorter than corolla lobes; filaments 0.2–0.4 mm; anthers 0.6–0.8 × 0.5–0.6 mm; styles filiform, 1.6–2.5 mm, equaling or longer than ovary. |
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. |
globose-ovoid, 2.5–3.5 × 2.5–3.5 mm, not thickened around relatively small interstylar aperture, not translucent, surrounded by withered corolla, indehiscent. |
Seeds | 2–4, obcompressed, subglobose, 0.8–1.1 × 0.8–1 mm, hilum subterminal. |
2–4, obcompressed, subglobose to broadly ellipsoid, 1.3–2 × 1–1.7 mm, hilum region subterminal. |
Cuscuta suksdorfii |
Cuscuta suaveolens |
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Phenology | Flowering Jul–Sep. | Flowering Jul–Oct. |
Habitat | mountain meadows. | Hosts: Medicago sativa, Trifolium. |
Elevation | 1500–2600 m. (4900–8500 ft.) | 20–1000 m. (100–3300 ft.) |
Distribution |
CA; OR; WA
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AL; CA; OH; SD; TX; South America [Introduced in North America; introduced also in Europe] |
Discussion | Cuscuta suaveolens is an ephemeral weed associated with the cultivation of forage legumes; it has not been collected in recent decades. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Source | FNA vol. 14. | FNA vol. 14. |
Parent taxa | Convolvulaceae > Cuscuta > subg. Grammica | Convolvulaceae > Cuscuta > subg. Grammica |
Sibling taxa | ||
Synonyms | C. salina var. acuminata, C. suksdorfii var. subpedicellata | |
Name authority | Yuncker: Mem. Torrey Bot. Club 18: 167. (1932) | Seringe: Ann. Sci. Phys. Nat. Lyon 3: 519. (1840) |
Web links |
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