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Cuscuta (weeds) L. - (dodders)
The genus of dodders contains around 200 species of holoparasitic plants. Some of which are important agricultural weeds like field dodder, Cuscuta campestris, which is widely distributed in the northern hemisphere. They wind round the stems of their host plants and attach haustoria which grow into the phloem of the host, extracting nutrients and minerals for their growth. For heavily infested cranberry patches yield losses of more than 80% have been estimated.
The species are annual stem parasites. They appear leafless but have small, scale-like leaves. The stems are thin, coloured orange, red or yellow. The flowers are 2-5 mm wide. The tiny seeds are about 1 mm in diameter and spread easily to other fields together with the crop seeds or through water and animals.
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For details see Kaiser et al., 2015.
Currently, the following weed species have been entered into the system: