Quoya oldfieldii

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Oldfield's foxglove (Quoya oldfieldii) is a flowering plant in the mint family that grows only in the south-west of Western Australia.

Description
- It is an upright shrub 0.5–1.5 m tall. Branches and leaves are densely covered in brownish hairs.
- Leaves are egg-shaped, 2–4.5 cm long and 1.5–2.5 cm wide, grey-green on top and pale green underneath.
- Flowers appear in clusters (3–7) in the upper leaf axils on a hairy stalk 1–2 cm long. They have a pale pink tube with purple spots inside, about 18–23 mm long, and five lobes at the end. The lowest lobe is broad. The outside of the flower tube is hairy; the inside is mostly hairless except for a ring around the ovary. Four stamens are about the same length as the tube.
- The plant flowers mainly from May to November, sometimes into December. After flowering, it produces oval, hairy fruits about 3–4 mm long, with the sepals still attached.

Taxonomy and naming
- The species was first described in 1859 by Ferdinand von Mueller as Chloanthes oldfieldii, from a specimen collected by Augustus Oldfield near the Murchison River.
- In 2011, Barry Conn and Murray Henwood renamed it Quoya oldfieldii. The name oldfieldii honors the collector.

Habitat and distribution
- It grows in sand and gravelly soils on sandplains between Geraldton and Shark Bay, in the Geraldton Sandplains and Yalgoo biogeographic regions.

Conservation
- Quoya oldfieldii is not considered threatened in Western Australia.