Giant milkweed is a spreading shrub or small tree. Milky sap oozes from any part of the plant which is cut or broken. This sap is toxic to humans and animals.Stems are smooth and pale greyish green. Mature stems have a characteristic beige corrugated bark, cork-like in appearance and texture.
The giant sensitive plant is indigenous to Brazil in South America. It is a shrubby or sprawling annual that climbs over other vegetation, behaves as a perennial in favourable conditions and is known to invade pastures, cane fields and crops.
Giant sensitive tree is a woody invasive shrub that originates from Brazil and has now become widespread throughout the tropics. It favours wet tropical climates. It has the potential to spread through natural grassland floodplain ecosystems and pastures, converting them into unproductive scrub land, which is only able to sustain lower levels of biodiversity. It is on the list of the world's 100 worst invasive species in the Invasive Species Specialist Groups Global Invasive Species Database.
Evergreen shrub or small tree up to 10m high with hairy branchlets. Bronze turning light green leaves that are hairy below and have conspicuous veins. White flowers in groups of 1-3 from October to December. Green turning yellow fruits with white, yellow or pink flesh and a musky odour
The Himalayan firethorn is an evergreen shrub or small tree. It has spiny branches bearing simple leaves and clusters of small white flowers followed by showy red, orange or yellow berries. The leaves are hairless, have dark green upper surfaces and are glossy in appearance.