Also known as Rock Joyweed, Alternanthera denticulata var. major, Alternanthera denticulata var. micrantha
Not declared
Status
Not declared
Growth form
herb
Spread
annual
Alternanthera denticulata
Lesser Joyweed (Alternanthera denticulata) is a small, prostrate, white-flowering herb in the Amaranthaceae. It is native to all states and territories of Australia, and also occurs in New Guinea and the North Island of New Zealand.
This species is native to parts of Australia and may be locally declared as an invasive plant in some regions.
Identify it
Field cues
01Low, prostrate to decumbent herb with stems that root at the nodes
02Stems up to about 40cm long and often ± hairless
03Narrow leaves about 2–6cm long with entire or finely toothed margins
04Small globose to ellipsoid flower heads about 4–8mm wide
Distribution records are indicative. Always confirm current status with your state biosecurity authority.
Found in: creek banks, river banks, swamps, wetlands, lake margins, damp ground, coastal wetlands.
Plants can root at the nodes, so movement of plant material between sites may contribute to spread. Management should focus on preventing transfer of fragments and limiting establishment in new areas.
Limited data available. Some sections may be incomplete for this species.
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