Persicaria orientalis (L.) Spach
Spach, E. (1841) Histoire Naturelle des Vegetaux 10: 537.
Prince's Feathers; Lady's Thumb
Usually flowers and fruits as a shrub about 1-2 m tall but also flowers when smaller.
Leaf blades about 12.5-14 x 6-6.5 cm, petioles about 3.5-6.5 cm long, grooved on the upper surface. Stipules connate, forming a transparent sheath about 1.5 cm long, fringed at the apex. Petiole winged for about half its length. Twigs longitudinally ribbed. Twigs, petioles, and both the upper and lower surfaces of the leaf blade clothed in a mixture of erect and prostrate hairs. Some hairs may have a glandular base and scattered sessile glands may also be apparent.
Occurs in NT, CYP, NEQ, CEQ and southwards as far as south-eastern New South Wales. Altitudinal range in northern Australia from near sea level to 700 m. Usually grows near water in open forest situations but sometimes also found associated with rain forest. A cosmopolitan plant being found in many parts of the world.