Hydrocotyle L.
Stipules present Hydrocotyle
Leaves not peltate
Leaves undivided and with crenate margins, or slightly lobed (rarely more deeply than to the middle)
Fruit less than 3 mm wide
Flowers bisexual, sessile or very shortly pedicellate, up to 40 in small dense umbels.
Fruits and flowers 15–40 per head, ± sessile. Leaves hairy; reniform to orbicular-cordate, 1–4 cm wide; margins dentate to crenate; lobes obtuse, shallow to deeply 5–7-lobed. Stipules ciliate with red markings. Petals yellow may have red markings, as wide as fruit at time of flowering. Fruit flattened with area between ribs convex often with red markings. Stems prostrate. Widespread. Moist shady places. Fl. summer Hydrocotyle hirta
Fruits and flowers less than 15 per head, occasionally with 15 but then pedicels to 1.5 mm long. Petals wider than fruit at time of flowering