Proboscidea louisianica subsp. louisianica

Taxonomic status:Accepted

Occurrence status:Extinct

Establishment means:Naturalised

Viscid, prostrate or ascending herb to 40 cm high; branches opposite. Leaves c. orbicular, 6–15 cm long, 6.5–13 cm wide, cordate, apex rounded to acute, margins entire to shallowly sinuate but not lobed, surfaces glandular-pubescent, more densely beneath and on margins; petiole 5–19 cm long. Racemes open, 9–20 cm long; pedicels 2.5–3.5 cm; calyx 1.5–2.5 cm, sometimes pinkish, lobes acute or obtuse, c. one-third as long as calyx, the middle lobe longest; corolla 3.5–6 cm long, limb 3–5 cm diam., cream to purplish-pink, often with yellow lines in the throat and red or brown spots on the limb. Capsule body ellipsoid, 5–9 cm long, 1.5–3 cm wide, exocarp fleshy, pubescent, deciduous, exposing the woody endocarp; horns 10–17 cm long curved to an acute, hooked tip; seeds heavily pitted. Flowers Dec.–Jun.

An occasional cropweed on fertile irrigated ground in the north of the state (e.g. Minyip, Echuca, Rutherglen, Violet Town areas); a declared noxious weed.

Created by: Daniel Ohlsen, 2017-02-02
Updated by: Val Stajsic, 2018-08-09
Distribution map


Source: AVH (2014). Australia's Virtual Herbarium, Council of Heads of Australasian Herbaria, <>. Find Proboscidea louisianica subsp. louisianica in AVH ; Victorian Biodiversity Atlas, © The State of Victoria, Department of Environment and Primary Industries (published Dec. 2014) Find Proboscidea louisianica subsp. louisianica in Victorian Biodiversity Atlas
  Bioregion Occurrence status Establishment means
Murray Mallee extinct naturalised
Northern Inland Slopes extinct naturalised