Nymphoides crenata

Nymphoides crenata, commonly known as wavy marshwort, is an aquatic perennial herb of the family Menyanthaceae endemic to Australia,[4] found in all mainland states and the Northern Territory[5][6][7]

Nymphoides crenata
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Asterales
Family: Menyanthaceae
Genus: Nymphoides
Species:
N. crenata
Binomial name
Nymphoides crenata
Occurrence data from AVH
Synonyms[3]

Limnanthemum crenatum F.Muell.
Villarsia crenata (F.Muell.) F.Muell.

Description

It is a stoloniferous, floating, perennial with stems up to 3 m long. The petioles of the basal leaves are from 8–42 cm long. The leaf lamina are ovate to circular, and deeply cordate and vary from 3 to 15 cm in length. The stem leaves are smaller, and sometimes kidney-shaped. The flowers heterostylous, (see the gallery) and there can be from 8 to14 in clusters subtended by 1–4 stem leaves, or sometimes in spaced pairs along a short inflorescence. The calyx is from 5.5 to 16 mm long and the corolla from 20 to 50 mm in diameter. There are usually 4 lobes (sometimes 4 or 6) and there are usually 5 stigmas (but from 2-5).[6]

Habitat

It grows on floodplains,[8] in swamps, lagoons, irrigation channels, and also in temporarily inundated depressions,[6] and in slow-flowing streams where the depth of the water is up to about 1.5 m deep, usually on mud, and it will persist on drying mud.[4]

Taxonomy

Nymphoides crenata was first described as Limnanthemum crenatum in 1854 by Ferdinand von Mueller.[1][9] In 1891, Otto Kuntze transferred it to the genus, Nymphoides.[1][2]

  • leaves & stem
  • flooded plain
  • floating leaves & stems
  • flower
  • flower

References
  1. "Nymphoides crenata". Australian Plant Name Index (APNI), IBIS database. Centre for Plant Biodiversity Research, Australian Government.
  2. Kuntze, C.E.O. (1891). "Nymphoides". Revisio Generum Plantarum. 2: 429.
  3. "Nymphoides crenata (F.Muell.) Kuntze | Plants of the World Online | Kew Science". Plants of the World Online. Retrieved 2020-06-24.
  4. Jacobs, S. W. L. "New South Wales Flora Online: Nymphoides crenata". Royal Botanic Gardens & Domain Trust, Sydney, Australia.
  5. Nymphoides crenata occurrence data from Australasian Virtual Herbarium: WA NT QLD NSW VIC SA
  6. "Flora of Victoria: Nymphoides crenata". vicflora.rbg.vic.gov.au. Retrieved 2020-06-24.
  7. Western Australian Herbarium, Biodiversity and Conservation Science. "FloraBase—the Western Australian Flora: Nymphoides crenata". florabase.dpaw.wa.gov.au. Retrieved 2020-06-24.
  8. "NT Flora: Nymphoides crenata factsheet". eflora.nt.gov.au. Retrieved 2020-06-24.
  9. Mueller, F.J.H. von (18 September 1854). "Definitions of rare or hitherto undescribed Australian plants, chiefly collected within the boundaries of the colony of Victoria". Transactions of the Philosophical Society of Victoria. 1: 17.
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