Ptilotus obovatus (Gaudich.) F.Muell. Cotton Bush
Fragm. 6:228-229 (1868)

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

Brief Description
Amanda Spooner, Tuesday 31 August 1999

Shrub, 0.1-1.4 m high. Fl. pink-white-other, Jun to Dec. Variety of soils, red sand. Gravelly hills.

Distribution

Beard’s Provinces: Eremaean Province, Northern Province, South-West Province.

IBRA Regions: Avon Wheatbelt, Carnarvon, Central Ranges, Coolgardie, Dampierland, Gascoyne, Geraldton Sandplains, Gibson Desert, Great Sandy Desert, Great Victoria Desert, Hampton, Little Sandy Desert, Mallee, Murchison, Nullarbor, Pilbara, Yalgoo.

IBRA Subregions: Ashburton, Augustus, Avon Wheatbelt P1, Avon Wheatbelt P2, Cape Range, Carnegie, Central, Central band, Nullarbor Plain, Chichester, Dune Field, Eastern Goldfield, Eastern Mallee, Eastern Murchison, Eastern, Maralinga, Edel, Fortescue, Geraldton Hills, Hamersley, Hampton, Lateritic Plain, Mackay, Mann-Musgrave Block, Mardabilla, Northern band, Carlisle, Pindanland, Roebourne, Rudall, Shield, Southern Cross, Tallering, Trainor, Western Murchison, Wooramel.

IMCRA Regions: Ningaloo, Pilbara (nearshore), Pilbara (offshore), Shark Bay, Zuytdorp.

Local Government Areas (LGAs): Ashburton, Carnamah, Carnarvon, Chapman Valley, Coolgardie, Cue, Dalwallinu, Dowerin, Dundas, East Pilbara, Esperance, Exmouth, Greater Geraldton, Kalgoorlie-Boulder, Karratha, Koorda, Laverton, Leonora, Meekatharra, Menzies, Merredin, Mingenew, Morawa, Mount Magnet, Mount Marshall, Mukinbudin, Murchison, Ngaanyatjarraku, Northampton, Nungarin, Perenjori, Port Hedland, Sandstone, Shark Bay, Trayning, Upper Gascoyne, Westonia, Wiluna, Wongan-Ballidu, Wyalkatchem, Yalgoo, Yilgarn.

Scientific Description
R. Davis, Thursday 21 March 2019

Shrubs, stems single or several, more or less erect, persistently hairy, with dendritic hairs. Leaves present, 6-50 mm long, 3-18 mm wide, persistently hairy, with dendritic or stellate hairs; basal rosette absent; cauline leaves alternate. Spikes pink, ovoid or cylindrical, clustered, with densely arranged flowers. Bracts (1.8-)2.5-3.5 mm long, coloured or colourless, hairy, not awned or mucronate, with an obscure or a prominent midrib. Bracteoles (2.5-)3-4.5 mm long, colourless, hairy, awned or mucronate, with a prominent midrib. Outer tepals (8.3-)8.5-10(-11) mm long, not entire. Inner tepals 8-9.8(-10.8) mm long, with a basal tuft of hairs on inner face. Style 3.4 mm long, curved, obliquely fixed to ovary. Distribution: South West, Northern and Eremaean Botanical Region; IBRA regions: Geraldton Sandplain, Avon Whealtbelt, Mallee, Carnarvon, Central Ranges, Coolgardie, Gascoyne, Gibbson Desert, Great Sandy Desert, Great Victoria Desert, Hampton, Little Sandy Desert, Murchison, Nullarbor, Pilbara, Yalgoo, Dampierland.