Cuscuta suksdorfii |
Cuscuta azteca |
|
---|---|---|
mountain dodder |
globe dodder |
|
Stems | yellow, slender. |
orange-yellow, 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. |
dense, corymbiform to glomerulate; bracts at base of clusters 1, at base of pedicels 0 or 1, ovate, membranous, margins entire, apex acute. |
Pedicels | 0–2 mm. |
0.4–1.3 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, 2–2.6 mm, membranous, not papillate; calyx straw yellow, cupulate, equaling corolla tube length, divided 2/3 its length, finely reticulate, shiny, lobes ovate, bases not overlapping, margins entire, midvein with multicellular protuberances, apex acute; corolla white, drying creamy, 1.5–2.1 mm, tube cylindro-campanulate, becoming globose, 0.8–1.2 mm, not saccate, lobes erect to spreading, ovate-triangular, shorter than to equaling corolla tube length, margins usually entire, sometimes irregularly toothed, apex acute, straight to slightly incurved; infrastaminal scales oblong or rounded, 0.9–1.3 mm, equaling or slightly longer than corolla tube length, bridged at 0.1–0.2 mm, uniformly fimbriate in distal 1/2, fimbriae 0.1–0.3 mm; stamens exserted, shorter than corolla lobes; filaments 0.3–0.6 mm; anthers 0.2–0.3 × 0.2–0.3 mm; styles filiform, 0.4–0.7 mm, shorter than to equaling 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. |
depressed-globose, 1.5–2.5 × 1–1.8 mm, not thickened or raised around relatively small interstylar aperture, translucent, loosely surrounded or capped by withered corolla, dehiscence circumscissile. |
Seeds | 2–4, obcompressed, subglobose, 0.8–1.1 × 0.8–1 mm, hilum subterminal. |
3 or 4, angled, broadly ellipsoid to subglobose, 0.8–1 × 0.7–0.9 mm, hilum region almost terminal. |
Cuscuta suksdorfii |
Cuscuta azteca |
|
Phenology | Flowering Jul–Sep. | Flowering Jul–Nov. |
Habitat | mountain meadows. | Hosts: Asteraceae, Euphorbiaceae, Fabaceae (especially Dalea), Malvaceae. |
Elevation | 1500–2600 m. (4900–8500 ft.) | 600–1800 m. (2000–5900 ft.) |
Distribution |
CA; OR; WA
|
AZ; NM; Mexico |
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 | C. potosina var. globifera |
Name authority | Yuncker: Mem. Torrey Bot. Club 18: 167. (1932) | Costea & Stefanović: Organisms Diversity Evol. 11: 381, figs. 1h, 2g, 4. (2011) |
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