Parietaria australis

Annual herb, 5–30 cm high, not woody at base; stems erect, not rooting at the nodes, upper parts densely covered in flexuose hairs and scattered glandular hairs. Leaf-lamina ovate to broadly ovate, 1–2.5(–4) cm long, 8–15 mm wide, delicate to robust, 3-nerved; base cuneate or truncate; apex blunt or slightly acuminate. Inflorescence a 1-, 3- or 5-flowered cyme; central flowers or solitary flower bisexual; lateral flowers female, subtending bracts 3, with common pedicel, united in lower third to half, broadly triangular-ovate, more or less equal in length, concealing the flowers entirely except for perianth tips, soft and green when young, becoming brown and often hard at maturity, a delicate, reticulate venation visible, midrib distinct; perianth of all flowers similar, c. 3 mm long, mid vein and margins brown; stigma sessile. Achene c. 1.3 mm long, c. 0.8 mm wide, pale brown to pale greenish-brown, soft, sometimes crushed or crumbled; apiculum very slightly displaced sidewards.