Common name: Button Wrinklewort
Rutidosis leptorrhynchoides F.Muell. APNI*
Synonyms: Rutidosis leptorhynchoides F.Muell. APNI*
Description: Perennial herb, stems 15–30 cm high, simple or few-branched, tufted and arising from a woody rootstock, usually ± glabrous except stems ± woolly towards base.
Leaves mostly cauline, ± linear, usually 1.5–3.5 cm long, 0.5–1.5 mm wide, ± glabrous, margins revolute.
Scapes simple and 1-headed; heads broad-hemispherical, 8–15 mm diam.; involucral bracts 5–8-seriate, dull, greenish, the margins sometimes minutely toothed or ± lacerated but not ciliate. Florets numerous, all bisexual, c. 7 mm long; corolla yellow.
Achenes narrow-obovoid, c. 1.5 mm long, angular, dark brown, papillose; pappus of 10–15 lanceolate scales, 2–3 mm long, whitish, margins fimbriate to ± plumose.
Flowering: chiefly summer.
Distribution and occurrence: Grows in grassland and woodland; in the A.C.T. and Monaro region, rare.
NSW subdivisions: ST
Other Australian states: Vic.
Threatened species: NSW TSCA: Endangered ROTAP: 3ECa
Text by G. J. Harden
Taxon concept: Flora of NSW 1 (1990)
APNI* Provides a link to the Australian Plant Name Index (hosted by the Australian National Botanic Gardens) for comprehensive bibliographic data
***The AVH map option provides a detailed interactive Australia wide distribution map drawn from collections held by all major Australian herbaria participating in the Australian Virtual Herbarium project.