Koenigia alaskana
| Koenigia alaskana | |
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Scientific classification 
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| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Order: | Caryophyllales |
| Family: | Polygonaceae |
| Genus: | Koenigia |
| Species: | K. alaskana
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| Binomial name | |
| Koenigia alaskana | |
| Synonyms[1] | |
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Koenigia alaskana (synonym Aconogonon alaskanum, Persicaria alpina) is an Asian and North American species of flowering plant in the buckwheat family known by the common names Alaska wild-rhubarb and alpine knotweed.[2]
Description
[edit]This herbaceous or semi-evergreen[2] perennial grows up to 2 meters (almost 7 feet) tall, with a woody root and lanceolate leaves. The abundant flowers are white, cream or pale green, borne in plumes in midsummer.[3] They are followed by pinkish seed-heads later in summer or in early autumn. However, in a garden setting they are usually cut back after flowering to preserve vigour.[2]
Distribution and habitat
[edit]Koenigia alaskana is native to Alaska, the Yukon, and Magadan Oblast in the Russian Far East.[1]
Cultivation
[edit]It is cultivated in areas with enough space for its substantial mounds of foliage. Under the name Persicaria alpina it has received the Royal Horticultural Society's Award of Garden Merit.[2]
References
[edit]- ^ a b c "Koenigia alaskana (Small) T.M.Schust. & Reveal". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 2019-02-23.
- ^ a b c d "Persicaria alpina". www.rhs.org. Royal Horticultural Society. Retrieved 24 January 2021.
- ^ Flora of North America, Aconogonon alaskanum (Small) Soják, 1974. Alaska wild-rhubarb
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