It is common in areas disturbed by fire, growing in scattered colonies in sandy, clay or loamy soils on undulating plains and areas that are wet in winter. Distribution and habitat Įremophila calorhabdos occurs in areas north of Esperance between Grass Patch, Balladonia and Lake King in the Esperance Plains, Coolgardie and Mallee biogeographic regions. The specific epithet ( calorhabdos) means "beautiful wand or spear-shaft". The species was first formally described by Ludwig Diels in 1904 and the description was published in Botanische Jahrbücher für Systematik, Pflanzengeschichte und Pflanzengeographie. Flowering is followed by fruit which are dry, oval-shaped and 6.5–7.5 mm (0.3–0.3 in) long. Flowering mostly occurs from August to May but the flowers are usually most prolific from October to December. The 4 stamens extend beyond the petal tube. The petal lobes are pointed and the lowest lobe is curved backwards. The flower buds are orange-coloured but when open, the tube is bright pink to red or purplish. The petals are 20–25 mm (0.8–1 in) long and joined at their lower end to form a tube. There are 5 triangular, green sepals which are 2–4 mm (0.08–0.2 in) long. The flowers are borne singly in leaf axils on a stalk 2–3 mm (0.08–0.1 in) long. The leaves are crowded and overlapping, arranged spirally, mostly 13–24 mm (0.5–0.9 in) long and 5–12 mm (0.2–0.5 in) wide and elliptic to egg-shaped with small, fine teeth along the edges. The branches are densely covered with white hairs contrasting with the green leaves which have fewer hairs. Eremophila calorhabdos is an unusual shrub with a single vertical branch or a few branches up to 2.5 m (8 ft) tall.
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