Lythrum wilsonii
HewsonAnnual or perennial herb, prostrate to erect, to 50 cm tall, minutely scabrous. Leaves mostly alternate, narrowly ovate to narrowly elliptic, 0.5–2.5 cm long, 1–6 mm wide, sessile; apex usually acute; base attenuate. Flowers 1–7 in axillary cymes or clusters; pedicel c. 1 mm long; hypanthium tubular, to 3–5 mm long, 1–1.5 mm diam., appendages 4–6, narrowly triangular, c. 1 mm long; sepals 4–6, triangular, c. 0.5 mm long; petals 4–6, spreading, obovate to elliptic, 2–3.5 mm long, pink or pale purple; stamens 4–6, included. Capsule cylindric, shorter than or equal to hypanthium, dehiscing by 4 valves. Flowers Jul.–Dec.
MuM, VRiv. Also WA, NT, Qld, NSW, SA. In Victoria, apparently restricted to seasonal wetlands south of Swan Hill, growing in exposed areas in Eucalyptus largiflorens woodland.
This species is principally distinguished from L. hyssopifolia by the clustered (rather than solitary) flowers.
See note under L. paradoxum.
