| Noun | 1. | Helipterum - genus of South African and Australian herbs or shrubs grown as everlastings; the various Helipterum species are currently in process of being assigned to other genera especially Pteropogon and Hyalospermaasterid dicot genus - genus of more or less advanced dicotyledonous herbs and some trees and shrubs strawflower - any of various plants of the genus Helipterum | |