Gleditsia triacanthos L.

Honey Locust

Sp. Pl. 2: 1056 (1753) APNI

Taxonomic status:Accepted

Occurrence status:Present

Establishment means:Sparingly established

Tree to 25 m high, usually armed with spines to c. 18 cm long. Leaves 15–20 cm long, pinnate or bipinnate; pinnate leaves mostly with 10–15 pairs of pinnae; bipinnate leaves with 2–13 pairs of pinnae, leaflets 12–30 per pinnae, elliptic to ovate, mostly 10–35 mm long, 5–12 mm wide, sparsely toothed. Flowers yellowish-green, in slender racemes to c. 13 cm long; male flowers sessile, densely clustered; bisexual flowers pedicellate and well-spaced. Sepals lanceolate, 3–4 mm long; petals ovate to ovate-lanceolate, 4–6 mm long; ovary densely pubescent. Pod oblong, somewhat falcate, 15–40 cm long, 3–4 cm wide, dark brown, pilose; seeds 15–25, ovoid to elliptic, c. 10 mm long, embedded in thick pulp. Flowers spring–summer.

*GipP, *MuF, *NIS, *VRiv. Native of North America, cultivated as an ornamental or shade tree. Seedlings produced by planted trees have been recorded in paddocks in north-eastern Victoria.

This species is serious weed in New South Wales and Queensland where plants are known to reproduce from seed and suckers, often forming dense thickets along watercourses.     

Created by: Andre Messina, 2016-02-09
Hero image
Distribution map
life Life
kingdom Plantae
phylum Tracheophyta
superorder Rosanae
order Fabales
family Fabaceae
genus Gleditsia
Higher taxa


Source: AVH (2014). Australia's Virtual Herbarium, Council of Heads of Australasian Herbaria, <>. Find Gleditsia triacanthos in AVH ; Victorian Biodiversity Atlas, © The State of Victoria, Department of Environment and Primary Industries (published Dec. 2014) Find Gleditsia triacanthos in Victorian Biodiversity Atlas
  Bioregion Occurrence status Establishment means
Victorian Volcanic Plain present cultivated
Victorian Riverina present introduced
Murray Fans present introduced
Gippsland Plain present introduced
Northern Inland Slopes present introduced

State distribution

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