Cane cactus

Austrocylindropuntia cylindrica

Cane cactus is a branched shrub with small scarlet flowers, green pad-like stem covered with white spines. It has green-yellow fruits containing many seeds covered with a hard coat.It is a potential wwed of grasslands, shrublands and open woodlands, particularly insemi-arid regions.

Cascade Wattle

Acacia adunca

Cascade wattle is a bushy shrub or small tree growing up to 6m high. It has narrow leaves 150mm long which tend to droop.
Bright yellow globular flowers appear from late winter to early summer and produce a spectacular display. Flattened pods 80mm long and 10mm wide contain a number of hard, black seeds.

Castor-oil plant

Ricinus communis

This plant is an annual shrub or small tree with a softly woody stem growing up to 4m high with leaf and flowering stalks often with a grey bloom. The shiny, dark green or reddish leaves are paler below and star-shaped with serrated margins. Upper flowers are reddish and lower flowers cream. Green, brown or reddish, three-lobed capsules covered with soft spines. The whole plant is poisonous.

Cat's claw creeper

Dolichandra unguis-cati (Bignoniaceae)

The cat's claw creeper Dolichandra (syn. Macfadyena) unguis-cati is an invasive evergreen climber, climbing as high as 9m with claw-like tendrils between the bright green oblong to lance-shaped leaves, which have a terminal, three-part, claw-like tendril. The bright yellow flowers appear from September to February and are trumpet-shaped, occurring in clusters of two or three, sometimes solitary. Flattened, brown leathery capsules hold the winged, papery seeds. This climber invades forest margins, woodlands, plantations, roadsides and urban open spaces.

Cathedral bells

Bryophyllum pinnatum

Cathedral bells is a garden escape that is naturalised in tropical, sub-tropical and warmer temperate regions. It is a weed of gardens, parks, roadsides, railways lines, waste areas, coastal environs, creek-banks, open woodlands, forests and forest margins. Usually grow up to 60-120 cm tall.Its relatively broad leaves have scalloped margins and are oppositely arranged. These leaves may be simple or compound, with three or five leaflets. Its drooping bell-shaped flowers are greenish-yellow to pinkish-red in colour (up to 7 cm long).these flowers are borne in branched clusters at the top of its stems.


Bryophyllum delagoense (Crassulaceae)

An erect, hairless succulent perennial growing 1,2m high with grey-green, mottled leaves often having darker green to reddish spots. Flowers are pale orange to deep magenta appearing from June to July on the end of an erect stalk


Stellaria media

Chickweed occurs either as an annual species or as a short-lived perennial. It produces several generations a year, each one flowering after just five weeks of growth. It can remain green and often stays in flower throughout winter. A single plant can produce about 2 500 red-brown seeds, which can remain viable in the soil for 25-40 years.

Chilean cestrum

Cestrum parqui

It is an upright, straggly, woody deciduous or semi-evergreen shrub 2-3 meters (6 ft 7 in-9 ft 10 in) tall with one or more brittle green stems. Light green leaves are alternate and shiny green to 12 cm (5 in) long, giving off a foul rubbery smell when crushed. It has sprays of small, fragrant, tubular yellow-green flowers approximately 2.5 cm long on the ends of the stems, flowering from late spring to autumn. These produce clusters of small, black egg shaped berries during summer to autumn.

Chinese privet

Ligustrum sinense (Oleaceae)

A deciduous or semi-evergreen shrub growing to 3-6m high with dense, glossy foliage. Mid to dark green leaves, sometimes variegated, or yellow. Shoots are densely downy and leaves are hairy on the midrib beneath. Heavily scented white flowers in terminal clusters from October to February. Shiny black berries. The leaves and fruit are poisonous to humans and certain animals.

Chinese sagewood

Buddleja davidii

Chinese sagewood is most vigorous in well-drained soil and full sun. It can tolerate drought and low nutrient soil and can grow in very challenging conditions, such as cracks in the pavement and along railroads. Seeds require exposed soil to germinate successfully and seedlings are not often seen in improved garden soils or well-maintained landscapes.