Common name: Lesser Joyweed
Alternanthera denticulata R.Br. APNI*
Synonyms: Alternanthera triandra var. denticulata (R.Br.) Maiden & Betche APNI*
Description: Prostrate or decumbent annual; stems ± glabrous, to 40 cm long, rooting at the nodes.
Leaves 2–6 cm long, to 8 mm wide, glabrous, margins entire or finely toothed; petiolate.
Inflorescence globose to ellipsoid, 4–8 mm wide, sometimes clustered, rachis glabrous or slightly hairy. Bracts ovate to lanceolate, acute to acuminate. Perianth segments 2–3 mm long, acute. Stamens 5–3, staminodes 0–2.
Distribution and occurrence: Widespread.
NSW subdivisions: NC, CC, SC, NT, CT, ST, NWS, CWS, SWS, NWP, SWP, NFWP, ?SFWP
Other Australian states: Qld Vic. Tas. W.A. S.A. N.T.
Two varieties are recognised, but only var. denticulata occurs in NSW, with var. micrantha also present in NT and Queensland. K.L. Gibbons 21 Jan. 2021.
Text by S. W. L. Jacobs & L. Lapinpuro
Taxon concept: Flora of NSW 1 (1990)
APNI* Provides a link to the Australian Plant Name Index (hosted by the Australian National Botanic Gardens) for comprehensive bibliographic data
***The AVH map option provides a detailed interactive Australia wide distribution map drawn from collections held by all major Australian herbaria participating in the Australian Virtual Herbarium project.