in Davis Bay, British Columbia municipal crews attempted to eradicate it by digging out the plant to a depth of about three metres (10 feet) with an excavator. It grew back twice as large the next year. To avoid an epidemic as in the United Kingdom, some provinces in Canada are pushing for relaxation of provincial limits on the use of herbicides close to waterways so knotweed can be aggressively managed with strong chemicals. In spite of its status as an invasive species it is still sometimes sold or swapped in Canada as an edible "false bamboo". Bohemian knotweed, a hybrid between Japanese and giant knotweed that produces huge quantities of viable seeds, now accounts for about 80 per cent of knotweed infestations in British Columbia. See also Persicaria capitata for another plant species called Japanese knotweed. Chinese knotweed References External links Photo of herbarium specimen at Missouri Botanical Garden, collected in Missouri in 1994 Species Profile - Japanese knotweed (Fallopia japonica), National Invasive Species Information Center, United States National Agricultural Library. Lists general information and resources for Japanese knotweed. Best management practice A variety of ways to control knotweed (under "knotweed")(US) Strategies for the eradication of Japanese knotweed American Journal of Botany - Sexual Reproduction in the Invasive Species Fallopia japonica Japanese Knotweed Alliance (UK) Recipes from "Wildman" Steve Brill Time lapse video of knotweed growth BBC Insect that fights Japanese knotweed to be released BBC News 2010-03-09 How close is Japanese Knotweed to my home? BBC News 11 August 2017 UK location map at planttracker.org.uk The alien shrub that can't be stopped – BBC Future Flora of Eastern Asia Garden plants of Asia Medicinal plants Polygonoideae Stem vegetables Plants described in 1777 Flora of China