Sida sp. Articulation below (A.A. Mitchell PRP 1605)

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

Distribution

Beard’s Provinces: Eremaean Province, Northern Province.

IBRA Regions: Central Kimberley, Dampierland, Northern Kimberley, Ord Victoria Plain, Pilbara.

IBRA Subregions: Chichester, Hamersley, Mitchell, Ord, Ord-Victoria Plains P1, Pentecost, Pindanland, Roebourne.

Local Government Areas (LGAs): Ashburton, Derby-West Kimberley, East Pilbara, Halls Creek, Port Hedland, Wyndham-East Kimberley.

Scientific Description
C. Hollister and K.R. Thiele, Wednesday 15 January 2020

Herb or shrub. Stems hairy. Leaves 35-110 mm long, 7-20 mm wide, not lobed; margins entire; indumentum present, with stellate hairs; stipules present and persistent to older leaves. Perianth clearly of two whorls (calyx and corolla), the corolla obvious and prominent. Pedicel present, 5.5-8 mm long; indumentum present, with stellate hairs. Calyx green, 6-7.5 mm long, the lobes fused less than half their length, stellate hairs present. Corolla yellow, 7-10 mm long, glabrous. Stamens many, united and arising from a staminal tube around the style; filaments present, 0.9-1.1 mm long; anthers 0.5-0.6 mm long. Ovary hairs and scales absent (ovary quite glabrous); style 1, 4-6.4 mm long, with five or numerous style branches or lobes, mostly glabrous. Fruits indehiscent and splitting into sections (schizocarps), length-width ratio more or less as long as wide, mericarps wrinkled, hairs and scales absent; apex distinctly flat-topped; calyx persistent to mature fruit, not accrescent. Flowering time June, July, August, September or October. Distribution Botanical Province Northern or Eremaean, IBRA Bioregion Pilbara, Central Kimberley, Dampierland or Ord-Victorian-Plain.