Darwinia terricola

Darwinia terricola is a spreading or prostrate shrub which grows to 20 centimetres (8 in) tall and 30 centimetres (10 in) wide and which has many stems spreading from a woody base. Its leaves are linear in shape, 4–9 millimetres (0.2–0.4 in) long and less than 0.7 millimetres (0.03 in) wide, triangular in cross-section and with scattered cilia along the edges. The flowers are arranged in groups, usually of between five and seven, the groups 17–19 millimetres (0.67–0.75 in) long and 10–12 millimetres (0.4–0.5 in) wide. The flowers are surrounded by several rows of leaf-like bracts which are green at first, but which turn reddish-green and increase in size to 13–20 millimetres (0.5–0.8 in) long and 2 millimetres (0.08 in) wide as the flowers develop. The groups of flowers lie on the ground or on top of leaves, each flower brown, tube-shaped and 3–4 millimetres (0.1–0.2 in) long with five ridges on the sides. The petals are white with a curved style 11–12 millimetres (0.4–0.5 in) long extending beyond the petal tube. There is a ring of short hairs near the end of the style. Flowering occurs in November and December.

Blackwood bell is only known from the Blackwood State Forest in the Jarrah Forest and Warrenbioregions, where it grows in sandy clay in mallee shrubland.