Common name: Stinkwort
Dittrichia graveolens (L.) Greuter APNI*
Description: Erect annual herb, usually 30–60 cm high; stems ± red near base, with numerous lateral branches from central axis, glandular and non-glandular hairs.
Leaves pubescent, entire or finely toothed; basal ones lanceolate to oblanceolate, 2–7 cm long, 1–8 mm wide, soon withering; cauline linear to narrow-oblanceolate, 1–4 cm long, 1–3 mm wide.
Inflorescence ± pyramidal panicle, heads sessile or peduncles to 5 mm long; heads c. 5–7 mm diam.; outer bracts lanceolate, entire, 2–4 mm long, herbaceous with scarious margins, ± hairy; inner bracts narrow-lanceolate to linear, longer, scarious margin wider, frequently ± apiculate; reflexing when seeds released. Florets yellow to reddish; ray florets 10–12, with ligule erect, 3-toothed, 4–7 mm long; disc florets 9–14.
Achenes c. 2 mm long, pubescent; pappus bristles 25–30.
Distribution and occurrence: Weed of disturbed sites.
NSW subdivisions: *NC, *CC, *SC, *NT, *CT, *ST, *NWS, *CWS, *SWS, *NWP, *SWP, *NFWP, *SFWP
Other Australian states: *Qld *Vic. *Tas. *W.A. *S.A.
Text by E. A. Brown
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.