Aconogonon phytolaccifolium
Aconogonon phytolaccifolium | |
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Scientific classification | |
Kingdom: | Plantae |
Clade: | Angiosperms |
Clade: | Eudicots |
Order: | Caryophyllales |
Family: | Polygonaceae |
Genus: | Aconogonon |
Species: | A. phytolaccifolium |
Binomial name | |
Aconogonon phytolaccifolium | |
Synonyms[1][2] | |
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Aconogonon phytolaccifolium is a species of flowering plant in the knotweed family known by the common name Poke knotweed.
Distribution
Aconogonon phytolaccifolium is native to the western United States: California, Oregon, Washington, Nevada, Idaho, and Montana.[3][4][5]
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.[6]
References
- ↑ Tropicos, Polygonum phytolaccifolium Meisn. ex Small
- ↑ Tropicos, Aconogonon phytolaccifolium (Meisn. ex Small) Rydb.
- ↑ Biota of North America Program 2014 county distribution map
- ↑ Calflora taxon report, University of California, Aconogonon phytolaccifolium (Meisn. ex Small) Small ex Rydb., Davis knotweed
- ↑ Turner Photographics, Wildflowers of the Pacific Northwest, Polygonum phytolaccifolium Alpine Knotweed photos, description, partial distribution map
- ↑ Flora of North America, Aconogonon phytolaccifolium (Meisner ex Small) Small 1917 Poke knotweed
External links
- SEINet, Southwestern Biodiversity, Arizona Chapter photos of herbarium specimens
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