David Alan Cooke

Chondropyxis is a monotypic genus of flowering plants in the family Asteraceae, containing the single species Chondropyxis halophila. It is endemic to Australia, where it is distributed in Western Australia and South Australia. Its common name is salt button-daisy. This plant is a semi-succulent annual herb growing just a few centimeters tall. It produces yellow-brown flowers. It occurs on the margins of salt lakes in sand and gypsum soils. This species was described in 1986 from a specimen collected just south of Penong, South Australia.

Centrolepis eremica is a species of plant in the Restionaceae family and is found in Western Australia. The annual herb has a tufted habit and typically forms a hemispherical mound approximately 6 centimetres (2.36 in) in width. It blooms between July and September. It is found amongst boulders and the margins of watercourses in the Wheatbelt, Mid West and Goldfields-Esperance regions of Western Australia where it grows in sandy-clay-loam granitic soils.

Trithuria bibracteata is a species of aquatic plant in the family Hydatellaceae endemic to Western Australia.

Patersonia argyrea is a species of plant in the iris family Iridaceae and is endemic to Western Australia. It is a tufted perennial herb with linear, sword-shaped leaves and violet tepals.

Spongotrichum suffruticosum, commonly known as clustered daisy-bush, is a species of flowering plant in the family Asteraceae and is endemic to south-eastern continental Australia. It is a shrub or undershrub with scattered, linear, grass-like leaves and pink to white and yellow and pink, daisy-like inflorescences.

Myriocephalus pluriflorus is a plant in the family Asteraceae, native to Western Australia, South Australia and New South Wales. It was first described by John McConnell Black in 1929 as Myriocephalus rhizocephalus var. pluriflorus. It was raised to species status in 1986 by David Alan Cooke.

Centrolepis curta is a species of plant in the Restionaceae family and is found in Western Australia. The dwarf, annual herb forms rounded tufts approximately 20 to 40 millimetres (0.79 to 1.57 in) in width. It blooms between May and August. It is found on alluvial flats and damp areas of seepage in the Kimberley region of Western Australia where it grows in damp sandy-loam soils.

Centrolepis caespitosa is a species of plant in the Restionaceae family and is found in Western Australia. The annual herb has a tufted habit and typically forms a rounded cushion approximately 2.5 centimetres (0.98 in) in width. It blooms between October and December. It is found on salt flats and in wet areas in the South West and Great Southern regions of Western Australia where it grows in sandy-clay soils.

Trithuria lanterna is a species of plant in the family Hydatellaceae endemic to Australia.

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Landerolaria macdonnellensis is a species of flowering plant in the family Asteraceae which is endemic to a restricted part of the Northern Territory of Australia. It is an erect, bushy shrub with broadly elliptic to broadly egg-shaped leaves and yellow, or white and yellow, daisy-like inflorescences.

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Leionema equestre, commonly known as Kangaroo Island phebalium, is a shrub species that is endemic to South Australia. It is a small spreading shrub with rough, green leaves and whitish-pink flowers from late winter to October.

Trithuria polybracteata is a species of plant in the family Hydatellaceae endemic to Western Australia.

Olearia incana is a species of flowering plant in the family Asteraceae and is endemic to southern Australia. It is a shrub with narrowly elliptic or wedge-shaped leaves and white and pale yellow, daisy-like inflorescences.

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