Common name: Marsh Dewflower
Murdannia keisak (Hassk.) Hand.-Mazz. APNI*
Description: Perennial herb with creeping stems, ascending at the tips to 40 cm high; internodes with a line of dense, white hairs.
Leaves sessile; leaf blade spreading or slightly folded, linear-lanceolate or linear-elliptic, 2–8 cm long, 0.5–0.8 cm wide; apex acuminate.
Inflorescences mostly terminal, usually 1-flowered; peduncle 1–4 cm long; pedicels 1–2 cm. Sepals narrowly oblong, 6–10 mm long. Petals pale mauve-pink to purple, obovate. Fertile stamens 3; anthers blue, filaments densely bearded, whitish; staminodes 3.
Capsule narrowly ovoid, 3-angled, 5–10 x 2–3 mm. Seeds gray, slightly flattened.
Distribution and occurrence: Widely distributed from India to Japan; naturalised in eastern parts of North America and occasional in Australia.
NSW subdivisions: *CC
Has weed potential.
Text by Peter G. Wilson (2004)
Taxon concept: Flora of China, vol. 24 (2000)
APNI* Provides a link to the Australian Plant Name Index (hosted by the Australian National Botanic Gardens) for comprehensive bibliographic data
***The AVH map option provides a detailed interactive Australia wide distribution map drawn from collections held by all major Australian herbaria participating in the Australian Virtual Herbarium project.