Ptilotus blackii Benl
Trans.Roy.Soc.South Australia 88:53-56 (1964)

Conservation Code: Priority Three
Naturalised Status: Native to Western Australia
Name Status: Current

Brief Description
Amanda Spooner, Monday 23 June 2008

Erect perennial, herb, 0.25-0.35 m high, leaves elliptical-spathulate, 5-25 mm long, 2-10 mm wide; spike pink, ovoid-hemispherical, 10-20 mm long, 12-20 mm wide; bracts 7.5-8.5 mm long; bracteoles 7-8 mm long 12-20 mm wide; tepals 11-15 mm long; 2 fertile stamens, 3 staminodes; ovary hairy; style curved, 3.5-4 mm long, eccentrically fixed to ovary. Fl. pink, May to Sep.


Beard’s Provinces: Eremaean Province.

IBRA Regions: Coolgardie, Great Victoria Desert.

IBRA Subregions: Central, Eastern Goldfield, Shield.

Local Government Areas (LGAs): Kalgoorlie-Boulder, Laverton, Menzies.

Scientific Description
Robert Davis, Thursday 22 December 2016

Erect, perennial herbs, 25-45 cm high. Stems glabrous or with sparse verticillate hairs. Basal leaves oblanceolate glabrous or with sparse, verticillate hairs. Cauline leaves alternate, oblanceolate or elliptical, 5-25 mm long, 2-10 mm wide, glabrous or with sparse, verticillate hairs. Inflorescences terminal, solitary or clustered, pink or magenta, ovoid or hemispherical, 10-20 mm long, 12-20 mm diam. Bracts dark brown, ovate, (7.5-)8-8.5 mm long, with long verticillate hairs; apex finely attenuate. Bracteoles brown, narrowly ovate, 7-7.5(-8) mm long, with long verticillate hairs; apex attenuate. Outer tepals 12-14(-14.5) mm long, hairy except at the apex, with verticillate hairs, not exceeding apex; inner tepals 11.5-13.5(-14) mm long, glabrous within. Staminal cup 1.7-1.9 mm long, glabrous, fertile stamens 2; staminodes 3. Ovary glabrous except for hair tufts at apex; style curved, obliquely fixed to ovary, 3.5-3.9(-4) mm long.