Olearia glandulosa

Olearia glandulosa, commonly known as swamp daisy-bush, is a species of flowering plant in the family Asteraceae and is endemic to south-eastern Australia. It is a slender, erect, glabrous shrub with sticky, narrowly linear leaves and white or pale blue and yellow, daisy-like inflorescences.

Description
Olearia glandulosa is a slender, erect, glabrous shrub that typically grows to a height of 1.5–2.4 m with many branches. Its leaves are arranged alternately along the branchlets, more or less sessile, narrowly linear, 8-55 mm long, 1–2 mm wide and sticky, with several glandular swellings on the edges. The heads or daisy-like "flowers" are arranged in corymbs on the ends of branches, and are 6–12 mm in diameter on a peduncle mostly about 1 mm long with three or four rows of bracts at the base. Each head has 15 to 25 white or pale blue ray florets, the ligules 4–9 mm long, surrounding a similar number of yellow disc florets. Flowering mostly occurs from October to April and the fruit is a silky-hairy achene, the pappus 3–4 mm long.

Taxonomy
Swamp daisy-bush was first formally described in 1806 by Jacques Labillardière who gave it the name Aster glandulosus in his Novae Hollandiae Plantarum Specimen. In 1867, George Bentham changed the name to Olearia glandulosa in the Flora Australiensis. The specific epithet (glandulosa) means "gland-bearing".

Distribution and habitat
Olearia glandulosa grows in wet heath, swamps and along river banks in far south-eastern Queensland, south of Mittagong in south-eastern New South Wales and the Australian Capital Territory, mostly south of the Great Dividing Range in Victoria, in the far south-east of South Australia, and in Tasmania.