| Alternanthera denticulata | |
|---|---|
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Scientific classification 
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| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Order: | Caryophyllales |
| Family: | Amaranthaceae |
| Genus: | Alternanthera |
| Species: | A. denticulata |
| Binomial name | |
| Alternanthera denticulata R.Br. | |
| Synonyms | |
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Alternanthera denticulata var. micrantha Benth. | |
Alternanthera denticulata (common name lesser joyweed) is a small prostrate white-flowering herb in the Amaranthaceae family. It is native to all states and territories of Australia, New Guinea, and the North Island of New Zealand. It is also one of the food plants of the varied eggfly, Hypolimnas bolina nerina.
The species was first described in 1810 by Robert Brown.
Description
Alternanthera denticulata is a prostrate to erect perennial herb, whose stems root at the nodes. The stems are green flushed pink, and sparsely hairy to being without a covering. The nodes are tomentose (that is, covered with dense intertwined hairs). The leaves are (20-)30-80 by 6–12 mm, and a light green, yellow green or flushed pink, with both the midrib and lateral veins being pink. The leaf margins are finely toothed, or entire.
Habitat and flowering
In Western Australia, it grows on both sand and clay soils, on the banks of creeks, rivers and swamps, flowering from April to August. On the North Island of New Zealand, it is found on coastal and lowland wetlands, lake margins and other damp ground, flowering from January to December.
Conservation status
In New Zealand, it has been assessed by the Department of Conservation as "Data Poor" but "Secure Overseas".
References
- ^ "Alternanthera denticulata R.Br". Australian Plant Name Index, IBIS database. Centre for Plant Biodiversity Research, Australian Government.
- ^ Brown, Robert (1810), Prodromus florae Novae Hollandiae et insulae Van-Diemen, exhibens characteres plantarum quas annis 1802–1805, London: R. Taylor et socii, p. 417, doi:10.5962/BHL.TITLE.3678, Wikidata Q7247677
- ^ "Alternanthera denticulata R.Br. | Plants of the World Online | Kew Science". Plants of the World Online. Retrieved 1 December 2020.
- ^ "Alternanthera denticulata R.Br". FloraBase. Western Australian Government Department of Biodiversity, Conservation and Attractions. Retrieved 1 December 2020.
- ^ S.W.L. Jacobs & L.Lapinpuro (1990). "PlantNET - FloraOnline: Alternanthera denticulata". plantnet.rbgsyd.nsw.gov.au. Retrieved 1 December 2020.
- "Varied Eggfly".
- ^ "Alternanthera denticulata". New Zealand Plant Conservation Network. Retrieved 1 December 2020.
- Peter J. de Lange; Jeremy R. Rolfe; John W. Barkla; et al. (May 2018). "Conservation status of New Zealand indigenous vascular plants, 2017" (PDF). New Zealand Threat Classification Series. 22: 54. ISSN 2324-1713. OCLC 1041649797. Wikidata Q76346849.