longroot smartweed
water knotweed
water smartweed
persicaria amphibia latin

Polygonum amphibium - amphibious bistort, longroot smartweed, water smartweed, (Persicaria amphibia)

USDA Plants Profile: Persicaria amphibia (longroot smartweed)

Polygonum amphibium) is a species of flowering plant in the knotweed family known by several common names, including longroot smartweed, water knotweed, water smartweed, and amphibious bistort.

Floating plants are rare and are of only three types: arrowhead, yellow water-lily and water knotweed.

Polygonum amphibium) is a species of flowering plant in the knotweed family known by several common names, including longroot smartweed, water knotweed, water smartweed, and amphibious bistort.

Polygonum coccineum, commonly called water smartweed, is a perennial herb in the genus Polygonum.

Polygonum amphibium - amphibious bistort, longroot smartweed, water smartweed, (Persicaria amphibia)

Polygonum amphibium) is a species of flowering plant in the knotweed family known by several common names, including longroot smartweed, water knotweed, water smartweed, and amphibious bistort.

Polygonum amphibium - amphibious bistort (Persicaria amphibia)