Koenigia phytolaccifolia

Koenigia phytolaccifolia (synonym Aconogonon phytolaccifolium) is a species of flowering plant in the knotweed family,[1] known by the common name poke knotweed.

Koenigia phytolaccifolia
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Caryophyllales
Family: Polygonaceae
Genus: Koenigia
Species:
K. phytolaccifolia
Binomial name
Koenigia phytolaccifolia
Synonyms[1]
  • Aconogonon phytolaccifolium (Meisn. ex Small) Small
  • Aconogonon smallii (Kongar) Soják
  • Polygonum phytolaccifolium Meisn. ex Small
  • Polygonum smallii Kongar

Description

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Koenigia phytolaccifolia 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.[2]

Distribution

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Koenigia phytolaccifolia is native to the western United States: California, Oregon, Washington, Nevada, Idaho, and Montana.[3][4][5]

References

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  1. ^ a b c "Koenigia phytolaccifolia (Meisn. ex Small) T.M.Schust. & Reveal", Plants of the World Online, Royal Botanic Gardens, Kew, retrieved 2019-02-24
  2. ^ Flora of North America, Aconogonon phytolaccifolium (Meisner ex Small) Small 1917 Poke knotweed
  3. ^ Biota of North America Program 2014 county distribution map
  4. ^ Calflora taxon report, University of California, Aconogonon phytolaccifolium (Meisn. ex Small) Small ex Rydb., Davis knotweed
  5. ^ Turner Photographics, Wildflowers of the Pacific Northwest, Polygonum phytolaccifolium Alpine Knotweed photos, description, partial distribution map
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