| 释义 | knotweed noun[ C or U ]
 uk /ˈnɒt.wiːd/ us /ˈnɑːt.wiːd/
 any of several wild plants with heart-shaped leaves, small flowers and divided stems:
 We do have native knotweeds in this country.
 Cover the roots of knotweed with black plastic.
 Some weeds grow in situations of compacted soil, such as knotweed.
 Soil within 20 to 30 feet of a knotweed plant can contain rhizomes, which can grow into new plants.
 Knotweeds can be removed by cutting them every four to six weeks during their growing season.
 SMART Vocabulary: related words and phrases
 Common plants
 African violet
 agave
 aloe
 aloe vera
 alpine strawberry
 dianthus
 dichondra
 dieffenbachia
 dill weed
 dracaena
 loganberry
 maidenhair fern
 maize
 mandrake
 mare's tail
 sorrel
 sotol
 sow thistle
 Spanish moss
 spearmint
 
 See also
 Japanese knotweed
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