Oenothera glazioviana Micheli

Reddish Evening-primrose

in C.Mart., Fl. Bras. 13: 178 (1875) APNI

Taxonomic status:Accepted

Occurrence status:Present

Establishment means:Naturalised

Erect, short-lived perennial or biennial herb, to 1.5 m high; stems 1–several, simple or branched, covered with many stiff hairs that are often broad and dark red at the base, upper parts with short appressed and glandular hairs. Basal leaves rosetted, lanceolate to oblanceolate, to 30 cm long, 5 cm wide, acute or obtuse, covered with short and long hairs, margins more or less entire; cauline leaves lanceolate to narrowly elliptic, to 15 cm long, 3 cm wide, acute, decreasing in size up the stem, covered with short and long hairs. Inflorescence a simple, dense spike in upper leaf axils. Flowers actinomorphic, opening near sunset and fading by morning, sessile; hypanthium 3.5–5 cm long; sepals lanceolate, 2–4.5 cm long, often reddish, failing to separate completely, bent to one side; petals 3.5–5 cm long, bright yellow, turning red on ageing. Capsule oblong but broadest toward base, 1.5–3 cm long, 4–6 mm wide, with spreading hairs, dehiscing mainly at apex. Flowers mostly Aug.–Mar.

*EGL, *EGU, *GipP, *Glep, *Gold, *HSF, *MuM, *NIS, *OtP, *OtR, *VVP. All States except NT. Naturalised worldwide. In Victoria it has become established in several disturbed localities (mostly near towns), as a garden-escape.

Believed to be a garden hybrid between 2 North American species, possibly O. grandiflora L’Hér. and O. elata Kunth, and now widespread throughout the world.

Source: Jeanes, J.A. (1996). Onagraceae. In: Walsh, N.G.; Entwisle, T.J. (eds), Flora of Victoria Vol. 3, Dicotyledons Winteraceae to Myrtaceae. Inkata Press, Melbourne.
Updated by: Val Stajsic, 2019-01-07
Hero image
Distribution map
life Life
kingdom Plantae
phylum Tracheophyta
superorder Rosanae
order Myrtales
family Onagraceae
genus Oenothera
Higher taxa


Source: AVH (2014). Australia's Virtual Herbarium, Council of Heads of Australasian Herbaria, <http://avh.chah.org.au>. Find Oenothera glazioviana in AVH ; Victorian Biodiversity Atlas, © The State of Victoria, Department of Environment and Primary Industries (published Dec. 2014) Find Oenothera glazioviana in Victorian Biodiversity Atlas
  Bioregion Occurrence status Establishment means
Murray Mallee present introduced
Glenelg Plain present introduced
Victorian Volcanic Plain present introduced
Gippsland Plain present naturalised
Otway Plain present introduced
Goldfields present naturalised
Northern Inland Slopes present introduced
East Gippsland Lowlands present naturalised
East Gippsland Uplands present naturalised
Highlands-Southern Fall present introduced
Otway Ranges present introduced

State distribution

Distribution map
Western Australia
South Australia
New South Wales
Australian Capital Territory