| Senecio
is a large, common and widespread genus in Tasmania, with 27
native herbs or slightly woody plants and four introduced species (including
ragwort, S. jacobaea, and groundsel, S. vulgaris). The
native species include several fireweeds (species that regenerate
vigorously after fire), but
also alpine rosette plants and coastal plants. The flower heads
are usually bright yellow, although C. elegans has purple
flowers and S. albogilvus has cream
flowers. Some species have only disc flowers (e.g. S. vulgaris)
or seem to (e.g. S.
quadridentatus), but many have both ray
and disc flowers. Senecio macrocarpus is considered
extinct. It resembled S. squarrosus, but has larger
heads. S. tasmanicus is also considered to be extinct. |
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