114B-3-Gahnia-radula-fl-Heales-Sanc.jpg

Gahnia radula

Thatch Saw-sedge

Narrow tufted perennial sedge, spreading by underground stems (rhizomes).

Additional information

  • FamilyCyperaceae
  • StoreyLower storey
  • Size1-2 m x 0.5-2 m
  • Plant groupingGrasses, Rushes & Sedges
  • LeavesLong flat erect dark green leaves to 70 cm, sheathing and spiralling around the stem. Margins inrolled and very sharp.
  • Flower colourBrown, becoming black
  • Flowering timeMost of the year, especially spring to summer.
  • FlowersNarrow, erect flower spikes 50-70 cm x 70 mm at the end of leafy stems, weeping with age. Nuts dark brown to black.
  • Bird attractingNo
  • Butterfly attractingFood plant for caterpillars
  • Frog habitatNo
  • Growing conditionsMoist poorly drained to seasonally moist areas in forests and woodlands. Frost tolerant. Full sun, semi shade.
  • Garden useSuitable for controlling soil erosion but very difficult to propagate or establish.
  • Commercially availableRarely
  • Conservation statusWidespread within the Shire
  • Aboriginal Use Food - nuts ground
Photographer/s: 1, 2, 4 Marilyn Bull ©; 3 Healesville Sanctuary ©

Plant Communities

  • 05 Mountain Ash Forest - Central Highlands (EVC 30)
  • 26 Red Stringybark Grassy Dry Forest - Middle Yarra (EVC 22)
  • 11 Manna Gum Riparian Forest - Central Highlands (EVC 18)
  • 28 Red Box Grassy Dry Forest - Christmas Hills (EVC 22)
  • 15 Scented Paperbark Riparian Thicket - Middle & Upper Yarra (EVC 59)
  • 29 Green Scentbark Herb-rich Foothill Forest (EVC 23)
  • 17 Messmate Herb-rich Foothill Forest (EVC 23)
  • 30 Swamp Gum Swampy Riparian Woodland (EVC 83)
  • 18 Messmate Shrubby Foothill Forest - Dandenongs (EVC 45)
  • 31 Candlebark Grassy Forest (EVC 128)
  • 19 Long-leaf Box Herb-rich Foothill Forest (EVC 23)
  • 33 Mountain Swamp Gum Swampy Riparian Woodland (EVC 83)
  • 20 Messmate Lowland Forest (EVC 16)
  • 34 Manna Gum Floodplain Riparian Woodland (EVC 56)
  • 21 Broad-leaf Peppermint Heathy Dry Forest (EVC 20)
  • 36 Scented Paperbark Riparian Thicket – Central Highlands (EVC 59)
  • 22 Silver-leaf Stringybark Heathy Woodland (EVC 48)
  • 38 Yellow Box Valley Grassy Forest – Middle Yarra (EVC 47)
  • 25 Long-leaf Box Grassy Dry Forest - Southern Dandenongs (EVC 22)
  • 40 Snow Gum Grassy Woodland (EVC 175/37)
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