About Ptilotus calostachyus (F.Muell.) F.Muell.
Ptilotus calostachyus (F.Muell.) F.Muell. is an erect, spreading perennial herb or shrub that usually reaches a height of 0.2 to 2 meters (7.9 inches to 6 feet 6.7 inches). This species has no leaves at its base; leaves are arranged alternately along the stems, and measure 10 to 90 millimeters (0.39 to 3.54 inches) long and 1 to 3 millimeters (0.039 to 0.118 inches) wide. Its pinkish-white flowers grow densely packed in cylindrical spikes. Bracts are mostly 1.7 to 3.2 millimeters (0.067 to 0.126 inches) long, while bracteoles are 2 to 3 millimeters (0.079 to 0.118 inches) long, colorless, and sometimes covered in hairs. Outer tepals are 3.3 to 6 millimeters (0.13 to 0.24 inches) long, and inner tepals are 3.3 to 5.8 millimeters (0.13 to 0.23 inches) long. The style is 1.4 to 2.5 millimeters (0.055 to 0.098 inches) long. Flowering of this species takes place from March through October. This Ptilotus species grows on sandy or stony plains and ridges. Its distribution covers the northern half of Western Australia, the Northern Territory, and two sites located north of Camooweal in Queensland, close to the Northern Territory border.
