Myriophyllum crispatum

Upright Water-milfoil

Robust erect perennial herb with soft curly hairs on stems and leaf bases, rooting at leaf nodes. Submerged and emergent leaves different.

Additional information

  • FamilyHaloragaceae
  • StoreyLower storey
  • Size0.25-0.6 m high
  • Plant groupingAquatic & Semi aquatic
  • LeavesSubmerged - egg-shaped, 10-40 mm long in rings of 5-8, leaves divided to midrib with close narrow segments like teeth on a comb; Emergent - rings of 6-9, decreasing from broadly lance-shaped and divided to toothed, to needle-like & entire to 20 mm.
  • Flower colourCream to reddish-brown male flowers
  • Flowering timeOctober to April
  • FlowersSingle stalkless male and female flowers in upper leaf axils. Female flowers lack sepals and petals, white stigmas. Fruit cubic, yellow-brown to dark red.
  • Bird attractingNo
  • Butterfly attractingNo
  • Frog habitatYes
  • Growing conditionsAquatic to a depth of 1 m or semi-aquatic in swamps and mud and still to slow flowing streams. Full sun, semi-shade.
  • Garden useInteresting plant for muddy to wet areas. Grow in pools and dams.
  • Commercially availableIndigenous nursery
  • Conservation statusLocally common within its preferred growing conditions
Photographer/s: 1, 3 Colleen Miller ©; 2 Peter Kinchington ©

Plant Communities

  • 35 Floodplain Wetland Complex (EVC 172)
  • 47 Open Water - Reservoirs, lakes, etc (EVC 718)
  • 39 Sedge Wetland Complex (EVC 136)
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