Haloragaceae

Terrestrial plants, occasionally on mud. Petals present in female flowers

Petals curved and hooded around the stamens, erect in the bud

Flowers solitary in the axil of each bract. Fruit 1-locular, membranous Gonocarpus

Bracts opposite, at least in the lower parts of the inflorescence

Leaves linear, almost terete, 6–15 mm long, fleshy, glabrous or with a few hairs. Stems slender, wiry, erect, up to 35 cm high with drooping tips. All bracts opposite. Widespread. Wet ground Gonocarpus salsoloides

Leaves lanceolate to orbicular, serrulate, scabrous, 5–20 mm long. Upper bracts alternate. Stems erect, up to 50 cm high. Widespread. Open forest and heath Gonocarpus teucrioides