Conospermum canaliculatum

Conospermum canaliculatum is a dense, multistemmed, erect shrub that typically grows to a height of up to 1 m (3 ft 3 in). Its leaves are linear, 40–200 mm (1.6–7.9 in) long and 2–4 mm (0.079–0.157 in) wide with distinct longitudinal channels on the upper surface. The flowers are arranged in branched, spike-like panicles in upper leaf axils on hairy peduncles 105–150 mm (4.1–5.9 in) long. The bracteoles are 1.5–2.5 mm (0.059–0.098 in) long. The perianth is white-woolly and black or maroon inside, forming a tube 3.0–3.5 mm (0.12–0.14 in) long. The upper lip is 1.0–1.6 mm (0.039–0.063 in) long, the lower lip joined for 0.5–1.0 mm (0.020–0.039 in) long with lobes 0.75–1.0 mm (0.030–0.039 in) long and 0.2–0.3 mm (0.0079–0.0118 in) wide. Flowering time varies with subspecies and the fruit is a hairy, rusty-brown nut 2.0–2.5 mm (0.079–0.098 in) long.

This species grows in sand between Perth and Badgingarra. Subspecies apiculatum is found near Badgingarra in the Geraldton Sandplains bioregion and subsp. canaliculatum occurs between Perth and Yanchep in the Avon Wheatbelt, Geraldton Sandplains, Jarrah Forest and Swan Coastal Plain bioregions.