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Large Tick-trefoil - Desmodium brachypodum

Large Tick-trefoil - Desmodium brachypodum

Australian Native - Nitrogen Fixer

Family: Fabaceae; Subfamily: Faboideae


  • Grassy woodland habitat.
  • Scattered patched in woodland at the Australian Botanic Garden.
  • Seeds often predated from within by weevil which develops at same time as seed.
  • Resprouts after fire.
  • Legumes reported to have nitrogen-fixing Rhizobium nodules on roots.

Desmodium brachypodum - RGBSyd

Description: Erect or climbing perennial herb, to 60 cm high; stems with short, spreading, hooked hairs.

Leaves 3-foliolate; leaflets ovate to elliptic, 1.5–7 cm long, 7–40 mm wide, apex obtuse to acute, upper surface ± glabrous, lower surface with minute, hooked hairs; petiole 20–55 mm long; stipules 4–8 mm long.

Racemes 15–40 cm long, 8–20-flowered; pedicels 1–2 mm long. Flowers c. 5 mm long, mauve to red or tan.

Pod 20–40 mm long, densely covered with minute, hooked hairs; articles 3–8, each 4–5 mm long.

Desmodium brachypodum - PlantNet

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