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Description: Annual herbs, non-glandular hairy, low growing.
Leaves basal and cauline, alternate, 2 or 3-pinnatisect, petiolate.
Heads terminal, solitary, sessile; involucral bracts 1- or 2-seriate, herbaceous with narrow scarious margins, imbricate; receptacle flat, pitted, naked. Outer florets female, 2- or 3-seriate, corolla absent. Inner florets bisexual, tubular, sterile; anthers acute at base with ovate apical appendages.
Achenes of outer florets strongly compressed, glabrous or hairy, lateral angles winged or not, style persistent as spine, pappus absent; inner achenes aborted.
Distribution and occurrence: World: c. 9 species, South America. Australia: 3 species (naturalized), all mainland States except N.T.
Text by E. A. Brown
| ||Key to the species|| |
|1||Achenes wingless; flower heads usually clustered in centre of rosette||Soliva anthemifolia|
|Achenes winged or with lateral projections; flower heads not clustered||2|
|2||Achenes with thin, broad-lobed wings with spines at tip; leaves hairy; flower heads slightly convex||Soliva sessilis|
|Achenes with thick corrugated ribs with 2 pointed lateral wing projections; leaves hardly hairy; flower heads more or less globose|
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