| Noun | 1. | genus Pteropogon - genus of Australian and South African herbs including some from genus Helipterum asterid dicot genus - genus of more or less advanced dicotyledonous herbs and some trees and shrubs aster family, Asteraceae, Compositae, family Asteraceae, family Compositae - plants with heads composed of many florets: aster; daisy; dandelion; goldenrod; marigold; lettuces; ragweed; sunflower; thistle; zinnia pteropogon, Pteropogon humboltianum - southern Australian plant having feathery hairs surrounding the fruit |