Nematanthus greagrius is native to the coastal mountains of Brazil. This species also as two common names, “Guppie Flower” and ” Candy Corn Plant” Because the flowers resemble both an over fed guppie and the favorite Halloween candy.
Nematanthus is a genus of flowering plants in the family Gesneriaceae. All of its species are endemic to Brazil. Compared to other gesneriads, Nematanthus has leaves that are small, succulent, and hard-surfaced. The plant has a trailing, branching, and spreading habit; it is generally an epiphyte in nature and a hanging-basket plant in cultivation. The flower has petals fused into a pouch-like shape, with a small opening. The fancied resemblance of the flower to a goldfish gives the plant its common name, "goldfish plant" or "guppy plant".