Common name: Small-flowered Buttercup
Ranunculus sessiliflorus R.Br. ex DC. APNI*
Description: Annual, pilose or sometimes subglabrous.
Flowering stems to 35 cm long, branching.
Lower leaves palmate, lamina 4–12 mm long or rarely longer, often reniform and broader than long, with 3–5 subacute teeth; upper leaves palmatisect or ternate; petiole mostly 2–5 cm long. Petals ovate or elliptic, 1–2 mm long; nectary above the middle of the petal, lobe semi-elliptic to ± triangular.
Achenes 1.3–2 mm long, with a short triangular beak c. 0.2 mm long (rarely longer).
Distribution and occurrence: Grows in intermittently moist sites, often in grassland or woodland on nutrient-rich soils.
NSW subdivisions: NC, CC, SC, NT, CT, ST, NWS, CWS, SWS, NWP, SWP, NFWP, SFWP
Other Australian states: Qld Vic. Tas. S.A. W.A.
Text by B. G. Briggs & R. O. Makinson
| ||Key to the varieties|| |
|1||Leaves palmate to palmatisect, coarsely toothed or lobed with semi-elliptic subacute lobes||var. sessiliflorus|
|Leaves ternate and further dissected with linear or narrow-lanceolate segments||var. pilulifer|
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.