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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.
Erect annual shrub, grows up to 1,5m high with sparsely hairy to smooth, green, brown or purple stems. Leaves are dark green or purple on the upper surface and paler underneath the leaves, and are sparsely hairy and bad smelling. Solitary white, mauve or purplish funnel-shaped flowers appear from October to March followed by brown hardened fruit capsules covered with slender spines up to 10mm long. The seeds and parts of this plant are poisonous to livestock and humans.
A long-lived (perennial) vine with stems often climbing up over other vegetation 6-10m tall, occasionally reaching 15m in height. It produces underground tubers and loses its leaves during the dry season in areas seasonal rains.
Trailing or bushy plant grows up to 2m high. Leaves are grey-velvety turning dark green and less velvety with prominent veins and bad smelling. Solitary white, funnel-shaped flowers appear from July to October, followed by brown hardened fruit capsules densely covered with slender spines up to 10mm long. Seeds are poisonous to livestock and humans.
A medium-sized wasp with a body length of 12-17mm. It has a black and yellow body pattern and looks very similar to the European paper wasp (Polistes dominulus). The antennae are black. These are social wasps and they construct paper-like nests in trees, roof eaves, under rock overhangs and sometimes in underground burrows.