Nymphoides crenata (F.Muell.) Kuntze

Wavy Marshwort

Revis. Gen. Pl. 2: 429 (1891) APNI

Taxonomic status:Accepted

Occurrence status:Present

Establishment means:Native

Threat status:Victoria: vulnerable (v); listed in Flora and Fauna Guarantee Act 1988

Perennial; stems to 3 m long, floating, stoloniferous. Petioles of basal leaves 8–42 cm long; blades broad-ovate to c. circular, crenate to crenate-dentate, deeply cordate, 3–13(–15) cm long; blades of stem leaves smaller, sometimes reniform to c. deltoid. Flowers heterostylous, 8–14 in a cluster subtended by 1–4 stem leaves or rarely in spaced pairs along a short inflorescence; calyx 5.5–10(–16) mm long; corolla 20–40(–50) mm diam., lobes (4–)5(–6), with broad laciniate wings and keel; stigmas mostly (2–)5, each with a vertical papillate wing decurrent on the style, the decurrent portions forming persistent stylar ridges. Capsule (4–)6–9 mm long, usually much shorter than calyx; seeds ellipsoid, strongly laterally compressed, (0.5–)0.6–0.9 mm long, pale brown, usually smooth, sometimes granular around edges; caruncle absent; minute hard projection present beside attachment point. Flowers mostly Sep.–May, fruits Nov.–Mar.

DunT, MuF, MuM, NIS, VRiv, VVP, WPro, Wim. Also WA, NT, SA, Qld, NSW. Occurs in fresh, still to slow-flowing water to 1.5 m deep in swamps, lagoons, irrigation channels and streams, also frequent in temporarily inundated depressions. Rare in all regions except RIV (and perhaps now extinct in MID, PROM and WIM from where there have been no contemporary collections).

Source: Aston, H.I. (1999). Menyanthaceae. In: Walsh, N.G.; Entwisle, T.J. (eds), Flora of Victoria Vol. 4, Cornaceae to Asteraceae. Inkata Press, Melbourne.
Updated by: Val Stajsic, 2018-08-01
Hero image
Distribution map
life Life
kingdom Plantae
phylum Tracheophyta
superorder Asteranae
order Asterales
family Menyanthaceae
genus Nymphoides
Higher taxa


Source: AVH (2014). Australia's Virtual Herbarium, Council of Heads of Australasian Herbaria, <http://avh.chah.org.au>. Find Nymphoides crenata in AVH ; Victorian Biodiversity Atlas, © The State of Victoria, Department of Environment and Primary Industries (published Dec. 2014) Find Nymphoides crenata in Victorian Biodiversity Atlas
  Bioregion Occurrence status Establishment means
Murray Mallee present native
Wimmera present native
Victorian Volcanic Plain present native
Victorian Riverina present native
Murray Fans present native
Dundas Tablelands present native
Northern Inland Slopes present native
Wilsons Promontory present native

State distribution

Distribution map
Western Australia
Northern Territory
South Australia
New South Wales