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Senecio minimus Poir.
Family Asteraceae
Senecio minimus Poir. APNI*

Synonyms: Senecio minimus Poir. var. minimus APNI*

Description: Erect annual herb, 20–100 cm high, usually glabrous, with few branches below inflorescence.

Leaves ± lanceolate to narrow-elliptic, mostly 5–12 cm long and 10–30 mm wide, margins regularly toothed, upper surface with short closely appressed hairs and green, lower surface glabrous or cobwebby, green; sessile, stem-clasping with toothed auricles.

Inflorescence corymbose; heads cylindrical, 1.5–2 mm diam.; involucral bracts 7–9, 5–7.5 mm long; bracteoles 2 or 3. Florets 12–20, slightly longer than involucre; outer florets filiform; inner florets tubular.

Achenes c. 2 mm long, dark brown; pappus 4–5 mm long.

Photo J. & P. Edwards


Flowering: throughout year but chiefly spring–summer.

Distribution and occurrence: Widespread weed, chiefly in wet sclerophyll forest; south from Wiangaree S.F. and Tenterfield district.
NSW subdivisions: NC, CC, SC, NT, CT, ST, CWS
Other Australian states: Qld Vic. Tas. W.A. S.A.
AVH map***

Specimens similar to this species but with 11–13 involucral bracts have been separated as S. species L in Jacobs & Pickard (1981). These plants may be hybrids between S. minimus and S. glomeratus.

Text by G. J. Harden
Taxon concept: Flora of NSW 3 (1992)

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.
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