Cuscuta japonica (weed)

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Cuscuta japonica (click on image to enlarge it)
Source: Wikimedia Commons
Cuscuta japonica flowers (click on image to enlarge it)
Source: Wikimedia Commons

Cuscuta japonica (weed) Choisy - (Japanese dodder)

This parasitic plant is native to eastern Asia and has been introduced into North America. It has been reported to parasitise various host plants, including ornamentals and crops. Mostly herbaceous plants are affected, but also shrubs and trees. Infested plants show poor growth and chlorosis. They may wilt and die.

C. japonica has yellow stems with purplish spots. The flowers are greenish white and the sepals may be purplish. The seeds are around 2 mm wide.


Publications covering Cuscuta japonica (weed)

Plant Disease (2020) 104, p. 1877 (Qu et al.)
Xiao-Jian Qu, Li-Kang Liu, Luo-Yan Zhang, Xue-Jie Zhang and Shou-Jin Fan (2020)
First report of dodder (Cuscuta japonica) parasitizing Japanese red pine (Pinus densiflora) in China

Plant Disease (2020) 104, p. 3084 (Qu et al.)
Xiao-Jian Qu and Shou-Jin Fan (2020)
First report of leaf wilt caused by Cuscuta japonica on generally insusceptible host plant Rhus typhina in China

Plant Disease (2015) 99, p. 1285 (Yuan et al.)
Y. Yuan, R. Zhou, J. Fu, J. Zhao and Z. Lu (2015)
First report of dodder (Cuscuta japonica) on Dictamnus dasycarpus in China

Plant Disease (2012) 96, p. 297 (Chen et al.)
C.Q. Chen, S. Han, J. Gao and L.N. Yang (2012)
First report of ginseng (Panax ginseng) as a natural host of dodder (Cuscuta japonica) in China