Summary ²

Polygonum cespitosum or tufted knotweed is a summer annual weed plant of the family Polygonaceae, native to eastern Asia, from China to Japan and Southeast Asia, and introduced into North America. The plant grows to 3.5 feet (105 cm) in height with elliptic to lanceolate leaves, usually 20–75 mm (0.4-30.0 inches) long. It has small pink or red flowers arranged in tight terminal spikes.

Fontes e Créditos

1. (c) Sara Rall, alguns direitos reservados (CC BY-NC), enviado por Sara Rall
2. (c) Wikipedia, alguns direitos reservados (CC BY-SA), http://en.wikipedia.org/wiki/Polygonum_caespitosum

Mais informações

• BioDiversity4All taxon page
• Biodiversity Heritage Library
• BOLD Systems BIN search
• eFloras.org
• Global Biodiversity Information Facility (GBIF)
• HOSTS - a Database of the World's Lepidopteran Hostplants
• IPNI (with links to POWO, WFO, and BHL)
• SEINet Symbiota portals
• Tropicos
• World Flora Online

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