Plants of South Eastern New South Wales
Ranunculus papulentus
Large river buttercup
Ranunculaceae
Wet sites, in mud or water. Mainly Kosciuszko National Park, the mountains to the north, ACT, and tablelands. Occasionally elsewhere.
Perennial herb to 0.3 m high, rhizomatous or stoloniferous. Flowering stems hairless to hairy or slightly . Leaves basal, 1.5–5 cm long, 15–50 mm wide, hairless or somewhat hairless above, sparsely hairy beneath, deeply dissected or compound, with 3 leaflets or segments each with 2–5 lobes or teeth, or rarely entire. Stem leaves, if present, alternating up the stems, few, mostly simple. Flowers yellow, with 5–9 petals each 7–13 mm long, 2–4 mm wide. Sepals spreading. Flowering stems 1-4-flowered. Flowering: spring to autumn. Seeds usually 12–50, plump, smooth, wrinkled, or irregularly warty, about 1.5-3.6 mm long, with a slender beak 0.8-2.4 mm long, straight to curved down, tapering gradually to a fine point.
Can be difficulat to distinguish from Ranunculus diminutus when there are no flowers or seeds.
All native plants on unleased land in the ACT are protected.
Data deficient Vic..
PlantNET description: http://plantnet.rbgsyd.nsw.gov.au/cgi-bin/NSWfl.pl?page=nswfl&lvl=sp&name=Ranunculus~papulentus (accessed 4 February, 2021)
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