A yam from Southeast Asia, India and China, Dioscorea wallichii has edible tubers that can grow to over one metre long.
Red clover is grown widely across the world as a forage crop for livestock and poultry and has also been used in folk medicine.
Although Darwin described the Chilean wine palm as a 'very ugly tree', many consider it to be one of the world's most magnificent palms.
Darwin's fungus is a parasitic, golf ball-like fungus that was named in honour of Charles Darwin, who collected it in Tierra del Fuego during his voyage on HMS Beagle in 1832.
The dried roots of Chlorophytum tuberosum are used as a popular tonic and aphrodisiac in Ayurvedic medicine.
Bako, only recently discovered and described, symbolises the importance of wild yams and their biodiversity to the Malagasy people.
The densely-spined strawberry cactus is known for its hedgehog-like appearance and strawberry-flavoured fruits.
A wood-recycling fungus of conservation concern, bearded tooth has distinctive white football-sized fruitbodies, covered in icicle-like projections.
Canary bell-flower is a winter-flowering scrambler from the Canary Islands, with bright orange bells and copious watery nectar.
Christmas camellia is an attractive shrub with beautiful white to red flowers and contrasting dark green evergreen leaves.