Polygonum glaucum
Polygonum glaucum, common names seabeach knotweed[1] and seaside knotweed,[2] is a North American species of plant in the buckwheat family. It grows on the Atlantic Coast of the United States, from Alabama to Massachusetts, including in salt-water inlets such as Chesapeake Bay and the Hudson River.[3]
| Polygonum glaucum | |
|---|---|
 | |
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Order: | Caryophyllales |
| Family: | Polygonaceae |
| Genus: | Polygonum |
| Species: | P. glaucum |
| Binomial name | |
| Polygonum glaucum Nutt. 1818 | |
Polygonum glaucum is a branching herb up to 70 cm (28 in) tall. It appears silvery of bluish-green because of wax covering the leaves and stem. Flowers are pink or white, produced in groups of 1–3. It grows on beaches, sand dunes, and the edges of coastal marshes.[4]
References
- Brako, L., A.Y. Rossman & D.F. Farr. 1995. Scientific and Common Names of 7,000 Vascular Plants in the United States 1–294.
- USDA, NRCS (n.d.). "Polygonum glaucum". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team. Retrieved 12 October 2015.
- Biota of North America Program 2014 county distribution map
- Flora of North America, Polygonum glaucum Nuttall, 1818. Seabeach knotweed
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