Cheiranthera filifolia occurs as a free- standing plant or a twining plant and both occur in Westonia Common. This is a free-standing plant, about 1.1 m high. It had a more dense array of leaves than the twining form.

Comesperma flowers have two 'normal' petals on either side of a smaller column which can be a different colour. The larger petals of Comesperma integerrimium are green and the column is white and pink. It is a twining shrub or climber which can grow to 8 m high though in Westonia Common a height of 1 m or so is much more likely. The stem is striated (ridged).

Comesperma integerrimum flower fully out with two open petals. Behind is a bud which is close to opening. This species occurs west of a line from Shark Bay to Israelite Bay

Cryptandra minutifolia has small white flowers and tiny leaves. ('Minutifolia' means tiny leaves.) This photo shows some buds as well as open flowers.

Cryptandra minutifolia subsp. minutifolia is an inland species. Westonia is very near the eastern edge of its range, especially north of the Great Eastern Highway. It extends south to the Ravensthorpe Range. It has white flowers. The other subspecies of Cryptandra minutifolia can be white or more usually, pink. It occurs south of the Great Eastern Highway where the range of both subspecies overlap.

Cryptandra minutifolia subsp. minutifolia is a spreading shrub to 0.7 m high. The photo shows the tiny leaves.

Cryptandra myriantha is a straggly small shrub which can grow to about 0.6 m tall. This one was about 0.2 m tall in disturbed ground. The widest distribution is in Western Australia but the species also occurs in South Australia. Most of the range in Western Australia is west of a line from Northampton to Mount Ragged. The flowers and leaves are clumped and very small. The flowers can be white, cream or pink.

Trymalium daphnifolium occurs inland, mostly through the wheatbelt from Canna to Hyden. Westonia is on the eastern edge of its range.

Trymalium daphnifolium is an erect or straggling shrub to 2 m high. This one was about 1.5 m high with many racemes of small cream to flowers.

Boronia ternata is a shrub which can grow to 2 m high. it has white to pink four-petalled flowers and thick leaves. It occurs mostly in the eastern wheatbelt and goldfields and also south into Fitzgerald River National Park.

Phebalium tuberculosum has white, yellow or cream flowers, brown buds and warty leaves. It is widespread, occurring from the Murchison to the south coast including the wheatbelt, the goldfields and Great Victoria Desert.

Phebalium tuberculosum is a shrub to 2 m high. The rust coloured scales on the back of the flowers, warty stems and calyx and rolled under leaves are all distinguishing features.

Phebalium tuberculosum

Philotheca brucei is a shrub which can grow up to 2 m high. This one was about 1 m high, a spreading shrub with pink flowers, growing in a pocket of soil surrounded by granite. The leaves are warty on the underside. Westonia is on the southern border of its range which extends north to Sandstone and east to the Great Victoria Desert.

Philotheca thryptomenoides is an inland species with a fairly restricted distribution.