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clover dodder, common dodder, thyme dodder

hazel dodder, hazel dodder cuscute du noisetier

Stems

yellow to orange, medium to slender.

Inflorescences

dense, paniculiform or glomerulate, sometimes originating endogenously;

bracts at bases of clusters 1, at base of pedicels 0 or 1, ovate to lanceolate, membranous, margins entire, apex acute.

Pedicels

0.5–3 mm.

Flowers

(3 or)4 or 5-merous, 1.7–2.6(–3) mm, fleshy; usually not papillate, perianth cells convex, domelike;

calyx brownish, cupulate, usually equaling or longer than, rarely shorter than, corolla tube length, divided 1/2–2/3 its length, not reticulate or shiny, lobes triangular-ovate, bases not or slightly overlapping, margins entire, midvein ± carinate, apex acute;

corolla white, usually drying dark brown, 1.5–2.5 mm, tube campanulate to suburceolate, 0.5–1.5 mm, not saccate, lobes suberect to erect, triangular-ovate, 1/3 to equaling corolla tube length, margins entire, apex acute, inflexed;

infrastaminal scales relatively poorly developed, oblong, 0.7–1.5 mm, equaling or exceeding corolla tube length, bridged at 0.3–0.5 mm, 2-fid with 1–3 fimbriae on each side of filament attachment or with denticulate wings, fimbriae 0.3–0.5 mm;

stamens included, shorter than corolla lobes;

filaments 0.3–0.6 mm;

anthers 0.2–0.4 × 0.1–0.2 mm;

styles filiform, 0.7–1.8 mm, usually equaling, sometimes longer than, ovary.

Capsules

globose, ovoid, or depressed, 1.8–2.5 × 3.5–5 mm, ± thickened, not raised, around relatively large interstylar aperture, not translucent, capped or not by withered corolla, indehiscent.

Seeds

3 or 4, heterogeneous on same plant: obcompressed to weakly angled, broadly ellipsoid, or transversely oblique, 1.3–1.6 × 1.2–1.4 mm, hilum region usually subterminal, rarely almost terminal.

2n

= 30.

Cuscuta epithymum

Cuscuta coryli

Phenology Flowering Aug–Nov.
Habitat woods, meadows, margins of wetlands.
Elevation 50–1200 m. (200–3900 ft.)
Distribution
from USDA
[WildflowerSearch map]
[BONAP county map]
from FNA
AL; AR; AZ; CT; DC; DE; IA; IL; IN; KS; KY; MA; MD; MI; MN; MO; MS; MT; NC; ND; NE; NJ; NM; NY; OH; OK; PA; RI; SC; SD; TN; TX; VA; WI; WV; MB; ON; QC; SK
[WildflowerSearch map]
[BONAP county map]
Discussion

Varieties (subspecies) 2 (1 in the flora): introduced; Europe; introduced also in Mexico, South America, Asia, s Africa, Australia.

Cuscuta epithymum subsp. kotschyi (Des Moulins) Arcangeli grows in southern Europe.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Cuscuta coryli is closely related to C. indecora, from which it differs by often relatively small, four-merous flowers, bifid infrastaminal scales with one to three fimbriae on each side of filament attachment or with denticulate wings, and depressed capsules (M. Costea et al. 2006).

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Source FNA vol. 14. FNA vol. 14.
Parent taxa Convolvulaceae > Cuscuta > subg. Cuscuta Convolvulaceae > Cuscuta > subg. Grammica
Sibling taxa
C. americana, C. approximata, C. azteca, C. boldinghii, C. brachycalyx, C. californica, C. campestris, C. cephalanthi, C. chinensis, C. compacta, C. coryli, C. cuspidata, C. dentatasquamata, C. denticulata, C. draconella, C. epilinum, C. erosa, C. europaea, C. exaltata, C. glabrior, C. glomerata, C. gronovii, C. harperi, C. howelliana, C. indecora, C. japonica, C. jepsonii, C. legitima, C. leptantha, C. liliputana, C. mitriformis, C. nevadensis, C. obtusiflora, C. occidentalis, C. odontolepis, C. pacifica, C. pentagona, C. plattensis, C. polygonorum, C. rostrata, C. runyonii, C. salina, C. squamata, C. suaveolens, C. subinclusa, C. suksdorfii, C. tuberculata, C. umbellata, C. umbrosa, C. warneri
C. americana, C. approximata, C. azteca, C. boldinghii, C. brachycalyx, C. californica, C. campestris, C. cephalanthi, C. chinensis, C. compacta, C. cuspidata, C. dentatasquamata, C. denticulata, C. draconella, C. epilinum, C. epithymum, C. erosa, C. europaea, C. exaltata, C. glabrior, C. glomerata, C. gronovii, C. harperi, C. howelliana, C. indecora, C. japonica, C. jepsonii, C. legitima, C. leptantha, C. liliputana, C. mitriformis, C. nevadensis, C. obtusiflora, C. occidentalis, C. odontolepis, C. pacifica, C. pentagona, C. plattensis, C. polygonorum, C. rostrata, C. runyonii, C. salina, C. squamata, C. suaveolens, C. subinclusa, C. suksdorfii, C. tuberculata, C. umbellata, C. umbrosa, C. warneri
Subordinate taxa
C. epithymum var. epithymum
Synonyms C. europaea var. epithymum
Name authority (Linnaeus) Linnaeus: Amoen. Acad. 4: 478. (1759) — (as epithym.) Engelmann: Amer. J. Sci. Arts 43: 337, plate 6, figs. 7–11. (1842)
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