Oenothera acaulis Cav.

Icon. 4: 68.t.399 (1798) APNI

Taxonomic status:Accepted

Occurrence status:Extinct

Establishment means:Introduced

Perennial herb; stems procumbent, to c. 40 cm long, with dense short hairs. Basal leaves rosetted, oblanceolate, 5–20 cm long, 6–60 mm wide, pinnatifid to lyrate, petiolate; cauline leaves similar to basal leaves, but generally smaller. Flowers single, in leaf axils, actinomorphic, opening near sunset and fading by morning; hypanthium 10–11 mm long, cylindrical to clavate; sepals linear-lanceolate, 25–30 mm long, often failing to separate completely, bent to one side; petals 15–35 mm long, white, fading to pink. Capsule obovoid, c. 10–20 mm long, c. 7 mm wide, covered with fine spreading hairs, 4-winged, wings c. 2–7 mm wide. Flowers Oct.–Nov.

Naturalised in SA. Native to Chile, previously recorded in Victoria on coastal cliffs near Portland, last recorded at this site in 1920 and is presumed not to have persisted here.

Yellow-flowered forms are sometimes grown in cultivation as O. acaulis ‘Aurea’.

Created by: Andre Messina, 2016-06-10
Updated by: Val Stajsic, 2019-01-07
Distribution map
life Life
kingdom Plantae
phylum Tracheophyta
superorder Rosanae
order Myrtales
family Onagraceae
genus Oenothera
Higher taxa

Victoria

Source: AVH (2014). Australia's Virtual Herbarium, Council of Heads of Australasian Herbaria, <http://avh.chah.org.au>. Find Oenothera acaulis in AVH ; Victorian Biodiversity Atlas, © The State of Victoria, Department of Environment and Primary Industries (published Dec. 2014) Find Oenothera acaulis in Victorian Biodiversity Atlas
  Bioregion Occurrence status Establishment means
Victorian Volcanic Plain extinct introduced

State distribution

Distribution map
State
South Australia
Victoria