Common name: Holly-leaved senecio, Waterdissel
Senecio glastifolius L.f. APNI*
Description: Perennial herb (occasionally annual), 50–150 cm high, erect much-branched, stems four-cornered and glabrous.
Leaves ovate to elliptic, sessile, 3–15 cm long, 10–25 mm wide, margins irregularly toothed, lamina glabrous, leaf bases stem-clasping, becoming auriculate in upper leaves.
Conflorescence loosley corymbose, usually 4–20 heads; heads campanulate, 10–12 mm in diam., glabrous; involucral bracts 19–23, 8–10 mm long; bracteoles 8–14. Ray florets pink, 12–22; ligules 12–25 mm long.
Achenes 2–3 mm long, dark brown to black; pappus 7–9 mm long.
Flowering: Spring to early summer.
Distribution and occurrence:
Opportunistic weed, especially on disturbed sites in sandy soil.
NSW subdivisions: *CC
Other Australian states: *W.A.
Native of South Africa.
Text by A. Perkins
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.