Report sightings of Target Plant Species. Cape Town's Early Detection and Rapid Response (EDRR) Programme has identified 25 Target Plant Species. Although there are 383 plants listed in South Africa's invasive species legislation, Cape Town's Invasive Species Unit requests that you ONLY report the location of 'target species' as listed below.
Yellow flag iris forms dense growth along riverbanks and the fringes of ponds, competing with indigenous species and altering water flow. It is a perennial moisture-loving plant with yellow flowers and long, strap-like leaves. It reaches a height of 100-150cm.
Leaves: Long, strap-like leaves, green to bluish-green and erect, with the upper part bending over. Leaves 1m long and 30mm wide.
Flowers: Large yellow flowers with three narrow and three broad lobes 70mm long and 40mm wide.
This perennial clump-forming grass bears pink to purple seed heads. However, inflorescences can develop from light green (immature) to tan or light buff in colour (mature) with little or no traces of pink. The slender (0.2-0.4 cm wide), arching leaves grow to 0.6 m. The flowers and seeds grow as dense, cylindrical, bristly panicles 8-35 cm long on stalks that can reach 1.2 m in height. Leaf sheaths are usually smooth but often have edges lined with white hairs.
Madeira vine is a creeper from South America with wide, fleshy, waxy heart-shaped leaves, bright green in colour. It produces fragrant creamy spikes, about 10cm long with numerous individual small flowers resembling a lamb’s tail. Flowering period: Feb-May. This creeper produces tubers (5mm-25cm) light-brown or green potato-like tubers along the stem, which fall to the ground and sprout. If not controlled properly, this species can cause substantial ecological damage by smothering indigenous vegetation.
Bluebell creeper is native to south-western Australia. It is a medium-sized climbing shrub. The branches climb and twirl around other plants and man-made structures. It has dark green, glossy leaves about 50mm long. There is a distinctive mid-vein and the leaf is hairless. Flowers appear from spring to summer and are usually blue-mauve in colour, but some plants produce pink or white flowers. Each flower is bell-shaped with five petals and occur in drooping clusters of 1-5 flowers at the tips of the branches. The fruits are green turning purple green, cylindrical in shape and about 20mm long.
Acacia podalyriifolia is one of the most popular and widely cultivated of wattles. It is an evergreen shrub or tree growing 3-6m high, with silvery-grey to dull green, oval, velvety leaves. Flowers are bright yellow, spherical and appear in long, showy sprays from June to August. Greyish brown, velvety seed pods are usually 30-80 mm long and 15-20mm wide.