Asian Lady's Thumb
Persicaria posumbu (Buchenau-Hamilton ex D. Don) H. Gross
Asian Lady's Thumb: https://marylandbiodiversity.com/species/23044
Synonyms
Oriental Lady's-Thumb  Polygonum posumbu 
Tags
Exotic

Map Snapshot

4 Records

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Description

Most similar to Oriental Smartweed (Pesicaria longiseta) but differs in several characteristics. The leaves of Persicaria posumbu have a conspicuous purple blotch and the tepals are open at anthesis.

Seasonality Snapshot

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Source: Wikipedia

Persicaria posumbu
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Caryophyllales
Family: Polygonaceae
Genus: Persicaria
Species:
P. posumbu
Binomial name
Persicaria posumbu
(Buch.-Ham. ex D.Don) H.Gross[1]
Synonyms[1]
  • Persicaria yokusaiana (Makino) Nakai
  • Polygonum posumbu Buch.-Ham. ex D.Don
  • Polygonum yokusaianum Makino

Persicaria posumbu is a species of flowering plant in the family Polygonaceae.[1] It was first described as Polygonum posumbu in 1825 and transferred to the genus Persicaria in 1919.[2] Plants of the World Online records it as having a discontinuous native distribution: the Assam region, Bangladesh and the eastern Himalayas to the west, and Japan, Korea, the Kuril Islands and Primorye to the east.[1]

There is some confusion over the relationship between Persicaria posumbu and Persicaria cespitosa. Some sources regard P. cespitosa as an independent species,[3][4] others regard P. cespitosa as a synonym of P. posumbu.[5][6]


References

[edit]
  1. ^ a b c d "Persicaria posumbu (Buch.-Ham. ex D.Don) H.Gross", Plants of the World Online, Royal Botanic Gardens, Kew, retrieved 2019-05-03
  2. ^ "Plant Name Details for Persicaria posumbu (Buch.-Ham. ex D.Don) H.Gross", The International Plant Names Index, retrieved 2019-05-03
  3. ^ "Persicaria cespitosa (Blume) Nakai". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 2019-03-04.
  4. ^ "Persicaria caespitosa (Blume) Nakai". The Plant List. Retrieved 2019-05-04.
  5. ^ "Taxon: Persicaria posumbu (Buch.-Ham. ex D. Don) H. Gross". Germplasm Resources Information Network (GRIN-Taxonomy). USDA, Agricultural Research Service. Retrieved 2019-05-04.
  6. ^ "Persicaria caespitosa (Bl.) Nakai". GBIF Backbone Taxonomy. Retrieved 2019-05-04.
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