Trachymene composita (Domin) B.L.Burtt APNI*
Synonyms: Trachymene sp. sensu Jacobs & Pickard (1981) APNI*
Trachymene macrophylla (Domin) B.L.Burtt APNI*
Trachymene anisocarpa (Turcz.) B.L.Burtt APNI*
Description: Erect robust annual or biennial herb, to 250 cm high, with stout taproot; stems villous with glandular hairs to almost glabrous
Leaves mostly towards the base of the plant, lamina broad ovate, 3–8 cm long, 4–10 cm wide, sparsely hairy to pilose, paler on the undersurface, deeply 3–5 lobed; segments obovate to cuneate, 4–32 mm wide; margins toothed; petiole to 20 cm long with broadly sheathing ciliate base.
Umbels borne in dichasial cymes or in a compound umbel of dichasial cymes; subtended by tri-fid to simple, entire bracts, each umbel 20–45 mm diam., c. 100–200 flowered; peduncle 2.5–11 cm long, glabrous or sparsely hairy towards base; bracts 20–35, 4–7 mm long. Flowers bisexual. Petals 1.5–2.5 mm long, white. Ovary unilocular or 2-locular.
Fruit broad ovate to semicircular, 2.5–4 mm long, brown; one or both mericarps maturing. Mericarps 2.1–3.0 mm wide. Carpophores entire, 1–2 mm long.
Flowering: Flowers October–April
Distribution and occurrence: Grows in disturbed or swampy areas; south from Tweed R. area.
NSW subdivisions: NC, CC, SC, NT, CT, ST, CWS, NWS
Other Australian states: Vic. Tas.
T. species in Jacobs & Pickard (1981), T. anisocarpa misapp. Formerly in Apiaceae.
Text by J.M. Hart
APNI* Provides a link to the Australian Plant Name Index (hosted by the Australian National Botanic Gardens) for comprehensive bibliographic data
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