Senecio psilocarpus

Swamp Fireweed, Smooth-fruited Groundsel

Erect mostly unbranched annual herb on a perennial rootstock.

Additional information

  • SynonymSenecio sp. aff. squarrosus (South West Swamps)
  • FamilyAsteraceae
  • StoreyLower storey
  • Sizeto 80 cm high
  • Plant groupingHerbs & Groundcovers <1m
  • LeavesStalkless leaves, upper leaves with ear-like lobes at the base, lance-shaped, sometimes broader towards the tip, 3-12 cm x 5-13 mm. Scattered teeth on margins.
  • Flower colourYellow
  • Flowering timeNovember to March
  • FlowersTerminal spray of 2-20 cylindric daisy flowerheads, lacking ray florets. 40-70 florets per flowerhead. Seeds shiny, red.
  • Bird attractingNo
  • Butterfly attractingFood plant for caterpillars
  • Frog habitatNo
  • Growing conditionsWinter-wet swampy soils. Full sun, semi shade. Limited to one known location in south of the Shire.
  • Garden useFast growing herb for a moist garden, growing naturally amongst other herbs.
  • Commercially availableNever
  • Conservation statusVulnerable in Victoria to continued depletion. Known from one site in the Shire.
  • Related speciesS. psilocarpus has been separated from Senecio squarrosus. The latter is more hairy with larger flowerheads and bands of hairs on the blackish seeds. It occurs in a less aquatic site.
Photographer/s: 1, 3 Russell Best, NatureShare ©; 2 David Pitts, Royal Botanic Gardens Board ©

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