Perennial horse gram
Macrotyloma axillare var. axillare
family
Fabaceae
origin
Exotic
declaration
Council Pest Vegetation (BCC Natural Asset Local Law)
Council Pest Vegetation (BCC Natural Asset Local Law)
Common names
Perennial horse gram, Perennial horsegram, Lime-yellow pea, Axillaris, Archer axillaris.
A long-lived trailing or climbing vine with stems covered in close-lying hairs. Its compound leaves have three leaflets that are hairy on both surfaces its greenish-yellow pea-shaped flowers are arranged in small clusters in the leaf forks its elongated pods (3-5 cm long and about 7 mm wide) are hairy and have a pointed tip.
Impact
Impact
Perennial horse gram (Macrotyloma axillare var. axillare) is regarded as an environmental weed in Queensland. This species has become a serious weed in open forests and woodlands, where it climbs on woody plants and affects the regeneration of native species. It is currently of most concern in south-eastern Queensland, where it is rapidly spreading and ranked among the top 200 most invasive plant species.Perennial horse gram (Macrotyloma axillare var. axillare) appears on several local environmental weed lists in this region (e.g. in Redlands, Maroochy, Cooloola and Caboolture Shires) and is invading native vegetation near Mount Emu on the Sunshine Coast. This area includes the habitat of most remaining populations of the endangered Mount Emu she-oak (Allocasuarina emuina). Perennial horse gram (Macrotyloma axillare var. axillare) is also becoming a concern in central Queensland (e.g. in the Burnett Shire) and far northern Queensland, where it is listed as a priority weed species.
Location
Location
Characteristics
Characteristics
Similar Species
Similar Species
Perennial horse gram (Macrotyloma axillare var. axillare) is regarded as an environmental weed in Queensland. This species has become a serious weed in open forests and woodlands, where it climbs on woody plants and affects the regeneration of native species. It is currently of most concern in south-eastern Queensland, where it is rapidly spreading and ranked among the top 200 most invasive plant species.Perennial horse gram (Macrotyloma axillare var. axillare) appears on several local environmental weed lists in this region (e.g. in Redlands, Maroochy, Cooloola and Caboolture Shires) and is invading native vegetation near Mount Emu on the Sunshine Coast. This area includes the habitat of most remaining populations of the endangered Mount Emu she-oak (Allocasuarina emuina). Perennial horse gram (Macrotyloma axillare var. axillare) is also becoming a concern in central Queensland (e.g. in the Burnett Shire) and far northern Queensland, where it is listed as a priority weed species.
