Description: Erect, hairy annuals or short-lived perennials.
Leaves alternate or scattered, semiterete to flattened and obovate, hairy.
Flowers bisexual, axillary, 2–numerous, fused at least at the base or forming dense woody spherical heads, 5-partite.
Fruiting perianth hardened, with or without spiny or tuberculate appendages, fused at least basally to 1 or more other fruiting perianths, dispersing as a unit. Seed horizontal; perisperm abundant; embryo annular. Widespread in drier inland areas.
Distribution and occurrence: World: 4 species, endemic Australia. Australia: all mainland States.
Text by S. W. L. Jacobs
| ||Key to the species|| |
|1||Flowers 2–8, united at base||Dissocarpus biflorus|
|Flowers 6–numerous, in dense spinescent spherical heads||2|
|2||Perianth tube protruding above the surface of the dense, spherical, woody head; spines irregularly produced, often laterally flattened||Dissocarpus fontinalis|
|Perianth tube not visible above the surface of the dense, spherical, woody head; spines regularly 5, opposite each perianth lobe|
Back to 1
|3||Leaves linear, semiterete, to c. 3 mm wide||Dissocarpus paradoxus|
|Leaves flattened, obovate, 5–8 mm wide|
Back to 2