Sesbania formosa (F.Muell.) N.T.Burb. White Dragon Tree
Austral.J.Bot. 13:115 (1965)

Conservation Code: Not threatened
Naturalised Status: Native to Western Australia
Name Status: Current

Brief Description
Grazyna Paczkowska, Thursday 1 August 1996

Tree, 2.5-13 m high. Fl. white/cream, May to Sep. Alluvium, sand. Along creeks & rivers, margins of swamps.

Distribution

Beard’s Provinces: Eremaean Province, Northern Province.

IBRA Regions: Carnarvon, Central Kimberley, Dampierland, Gascoyne, Great Sandy Desert, Northern Kimberley, Ord Victoria Plain, Pilbara, Victoria Bonaparte.

IBRA Subregions: Ashburton, Berkeley, Cape Range, Chichester, Fitzroy Trough, Fortescue, Hamersley, Hart, McLarty, Mitchell, Ord, Ord-Victoria Plains P1, Pentecost, Pindanland, Roebourne, Victoria Bonaparte P1.

Local Government Areas (LGAs): Ashburton, Broome, Derby/west Kimberley, East Pilbara, Halls Creek, Karratha, Meekatharra, Port Hedland, Upper Gascoyne, Wyndham-East Kimberley.

Scientific Description
C. Hollister and K.R. Thiele, Friday 17 January 2020

Erect, tree. Stems terete, not spiny, glabrous; pustules or glands absent. Leaves or phylloclades clearly present, compound, alternate, not continuous with stem, 240-250 mm long, hairy, with gland-tipped hairs, flat with flat margins; margins entire; tubercles absent, leaflets 30-32, terminal leaflet present, stalked; pustules or glands absent. Stipules present but early deciduous ( only visible on youngest leaves ), 1-3 mm long, without glands, ribless. Pedicel present, 1.5-3 mm long, glabrous. Bracteoles present but early deciduous. Calyx 20-22 mm long, not accrescent, glabrous, ribless; pustules or glands absent. Corolla 75-80 mm long, uniformly coloured, white; claws present; standard 70-75 mm long, glabrous, not auriculate, wings 70-85 mm long, not auriculate, keel 70-80 mm long, not beaked, not auriculate, glabrous. Stamens ten, at two different levels (filaments alternately long and short); filaments united in an open sheath with one free stamen, 70-80 mm long. Ovary stipitate, glabrous; style 86-90 mm long, glabrous, not bearded, terete. Fruit dehiscent (a pod or follicle), stipitate, not constricted between the seeds, flat or compressed, beaked. Flowers in May, June, July, August and September. Occurs in the Northern and Eremaean Botanical Province, in the Great Sandy Desert, Pilbara, Carnarvon, Gascoyne, Northern Kimberley, Victoria Bonaparte, Central Kimberley, Ord-Victorian-Plain and Dampierland IBRA regions.