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|Family: Convolvulaceae||View Description||Dichotomous Key|
|Genus: Cuscuta||View Description||Dichotomous Key|
|Species:||View Description||Dichotomous Key|
Cuscuta japonica Choisy var. formosana (Hayata) Yunck.
URBAN WEED EXPECTED IN WILDLANDS
Inflorescence: spike-like with clusters of 1--3 flowers; pedicels 0.2--1 mm. Flower: 4--7 mm, membranous except fleshy at bases of receptacle, parts in 5s; calyx 1/3--1/2 corolla tube, cup-shaped, divided +- 2/3, not veined, not shiny, not papillate, lobes ovate to round, bases overlapped, margins irregular, tip rounded to obtuse; corolla tube 3--4 mm, cylindric-bell-shaped, scales 1/2--3/4 corolla tube, oblong, rounded, uniformly densely fringed, lobes erect to reflexed, 1/3 tube, triangular-ovate, margins irregularly minute-crenate to entire, tip rounded to obtuse; filaments 0--0.1 mm, anthers included, 0.7--1 mm, elliptic to oblong; styles 2, fused, 1--1.8 mm, >= ovary, stigmas; stigmas 0.5--0.7 mm, +- square. Fruit: circumscissile, 5--9 mm, 4--5 mm wide, conic-cylindric, without opening between styles, not translucent, capped by corolla.
Ecology: Woody pls, e.g., Vitis; Prunus; Elevation: < 100 m. Bioregional Distribution: ScV, CCo, and spreading; Distribution Outside California: Florida, South Carolina, Texas; native to Asia. Flowering Time: Sep--Nov Note: Evidently spreading vegetatively, no mature fruit seen; examined herbarium material belongs to Cuscuta japonica var. formosana, but Cuscuta japonica var. japonica (flower 3--4.5 mm; stigma +- conic) also may be present in California.
Synonyms: Cuscuta formosana Hayata
eFlora Treatment Author: Mihai Costea & Saša Stefanović
Jepson Online Interchange
Previous taxon: Cuscuta indecora var. indecora
Next taxon: Cuscuta jepsonii
Citation for this treatment: Mihai Costea & Saša Stefanović 2016. Cuscuta japonica var. formosana, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=82049, accessed on July 23, 2016.
Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on July 23, 2016.