| 词条 | Polygonum tenue |
| 释义 |
| image = Polygonum tenue leaves.jpg | genus = Polygonum | species = tenue | authority = Michx. | synonyms = | synonyms_ref = }}Polygonum tenue, the slender knotweed or pleat-leaf knotweed, is a North American species of plants in the buckwheat family. it is widespread across south-central Canada (Ontario) and the eastern and central United States from Maine to Georgia, west as far as Minnesota, South Dakota, Nebraska, and Texas (though apparently now extirpated from Maine and New Hampshire).[1]Polygonum tenue is a herb up to {{convert|50|cm|in|abbr=on}} tall. Stems are green or brown, not wiry. Leaves are narrow, up to {{convert|4|cm|in|abbr=on}} long. Flowers are pink or white.[2] References1. ^Biota of North America Program 2014 county distribution map 2. ^Flora of North America, Polygonum tenue Michaux, 1803. Slender or pleat-leaf knotweed External links
3 : Polygonum|Flora of North America|Plants described in 1803 |
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