Persicaria prostrata
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Caryophyllales
Family: Polygonaceae
Genus: Persicaria
Species:
P. prostrata
Binomial name
Persicaria prostrata
(R.Br.) Soják[1][2]
Occurrence data from AVH
Synonyms[3]
  • Polygonum prostratum R.Br.

Persicaria prostrata, basionym Polygonum prostratum, is a species of flowering plant in the family Polygonaceae, native to Australia[3] and perhaps New Zealand.[4] It is known by the common name of creeping knotweed.[5]

Description

Decumbent perennial herb with stems up to about 40 cm long.[5] Leaves lanceolate to narrowly elliptic, 1–5 cm long, 3–10 mm wide with short hairs on the margins and main veins.[5][6] Ochreas lobed with hairs 1–2 mm long.[5][6] Compact short cylindrical flower spikes from 0.6–4 cm long and 4–7 mm diameter.[6]

Ecology

Persicaria prostrata grows on banks of streams, ground-tanks and ditches[6] and on heavy soils in areas prone to inundation.[5]

Taxonomy

The plant was first described in 1810 by Robert Brown as Polygonum prostratum,[7][8] but was assigned to the genus Persicaria by Jiří Soják in 1974.[1][2]

References

  1. 1 2 "Persicaria prostrata". Australian Plant Name Index, IBIS database. Centre for Plant Biodiversity Research, Australian Government.
  2. 1 2 Sojak, J. (1974). "Bemerkungen zur Gattung Truellum Houtt. (Polygonaceae)" (PDF). Preslia. 46 (2): 154.
  3. 1 2 "Persicaria prostrata (R.Br.) Soják | Plants of the World Online | Kew Science". Plants of the World Online. Retrieved 2020-03-08.
  4. ↑ "Persicaria prostrata | New Zealand Plant Conservation Network". Retrieved 2020-03-08.
  5. 1 2 3 4 5 Stajsic, V. (2019-03-29). "Flora of Victoria: Persicaria prostrata". VICFLORA Flora of Victoria. Retrieved 2020-03-08.
  6. 1 2 3 4 Wilson, K. L. (2014). "PlantNET - FloraOnline: Persicaria prostrata". plantnet.rbgsyd.nsw.gov.au. Retrieved 2020-03-08.
  7. ↑ "Polygonum prostratum". Australian Plant Name Index, IBIS database. Centre for Plant Biodiversity Research, Australian Government.
  8. ↑ Brown, R. (1810) Prodromus florae Novae Hollandiae et insulae Van-Diemen, exhibens characteres plantarum quas annis 1802-1805: 419
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