Roots numerous (about 15 or more), very fleshy throughout length. Leaves large and robust, coarsely dissected, glabrous except for petiole, main veins very sparsely pilose to glabrous, leaves may persist while flowering or even fruiting (into December), leaf bases persist as somewhat inconspicuous fibres. Petioles up to ± 150 mm long, sparsely pilose. Basal pinnae with petiolules up to ± 70 mm long, frequently bipinnate. Upper pinnae usually pinnate. Ultimate leaflet segments relatively large, ovate, base usually broad, margins indented to varying depths. Inflorescence scape up to ± 1.6 m and striated with usually 4 or 5 umbels per scape, main umbel of 3-10 rays. Involucral bracts small, persistent. Involucel of small narrowly ovate bracteoles. Calyx lobes cusp-like, up to 0.3 mm long. Petals yellow. Fruits ± 6 mm long, 2.5 mm wide, mericarps homomorphic, without wings. The recorded flowering time is September to December.
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