Kingdom Plantae Genus Aconogonon Order Caryophyllales | Family Polygonaceae Rank Species | |
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Similar Aconogonon, Aconogonon davisiae, Aconogonon alaskanum, Aconogonon alpinum, Ambrosia psilostachya | ||
Aconogonon phytolaccifolium is a species of flowering plant in the knotweed family known by the common name Poke knotweed.
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Distribution
Aconogonon phytolaccifolium is native to the western United States: California, Oregon, Washington, Nevada, Idaho, and Montana.
Description
Aconogonon phytolaccifolium is a perennial herb up to 200 cm (79 in) tall. The lance-shaped or pointed oval leaves are 10 to 20 centimeters long and borne on petioles. The leaves have large stipules which form reddish ochrea up to 3 centimetres (1.2 inches) long. The inflorescence is a long array of branching cluster of many white or greenish flowers. Each flower is about 4 millimetres (0.16 inches) wide and has tiny protruding stamens tipped with yellow or pink anthers.
References
Aconogonon phytolaccifolium Wikipedia(Text) CC BY-SA