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无根藤(Cassytha filiformis Linn.)属樟科无根藤属,是我国华南热带及亚热带地区的一种常见的寄生性种子植物。在某些地区其分布频率之大,寄主范围之广,是远非菟丝子(Cuscuta spp.)所能比拟的。笔者曾先后在广东省海南岛、广州、湛江及广西南部等地区进行了调查,发现无根藤可为害多种乔木,是我国南方森林中一类重要的植物病原。无根藤为一年生至多年生的攀缘草本植物。其外观形态与旋花科的菟丝子很相似,呈
Cassytha filiformis Linn. Belongs to the Lauraceae rootless rattan genus, which is a common parasitic seed plant in the tropical and subtropical regions of South China. In some areas, the frequency of their distribution, the wide range of hosts, is far beyond the Cuscuta spp. The author has conducted surveys in Hainan Island, Guangzhou, Zhanjiang, Guangdong and other areas in southern Guangxi Province. It was found that rootless rattan can damage many kinds of trees and is an important plant pathogen in the southern forest of our country. Unripe rattan is a annual herbaceous perennial climber. Its appearance and shape of Convolvulaceae Dodder is very similar, was