Acacia dealbata
Magnoliophyta» Magnoliophyta» Rosopsida» Fabales» Fabaceae» Acacia dealbata
This fast growing tree can reach up to 30m in height. Leaves are greyish-green and segmented, leaf axis has glands only at the insertion of the pinnae. Flower heads are 5-6mm in diameter, pale yellow. Legume is compressed, scarcely constricted betwee...
Ailanthus altissima
Magnoliophyta» Magnoliophyta» Rosopsida» Sapindales» Simaroubaceae» Ailanthus altissima
This fast growing deciduous tree, 8-10 m high, has large compound leaves, composed of 11- 25 leaflets that alternate along the stems. Fruits are very distinctive for their long samaras forming large bunches, turning reddish in summer. All parts of th...
Ambrosia artemisiifolia
Magnoliophyta» Magnoliophyta» Rosopsida» Asterales» Asteraceae» Ambrosia artemisiifolia
Summer monoecious annual plant 0.2 - 2.5 m tall. The male flowers (2-4mm) are grouped in racemes at the end of branches, while female flowers are located at the bases of upper leaves. It produces a woody reddish-brown indehiscent fruit (akenes) with ...
Campylopus introflexus
Bryophyta» Bryophyta» Bryopsida» Dicranales» Dicranaceae» Campylopus introflexus
A moss with leaves tapering to a long, whitish hair-point. When plants dry the leaves become crisp, twisting slightly round the stem (5 cm long), with the hair-points bent at right angles, horizontally outwards. The capsules are produced in spring, o...
Carpobrotus edulis
Magnoliophyta» Magnoliophyta» Rosopsida» Caryophyllales» Aizoaceae» Carpobrotus edulis
Succulent, trailing perennial, rooting at nodes and forming large, dense mats. Leaves are opposite, 3-angled. Flowers (8-10 cm in diameter) are large, solitary, yellow, pinkish-purple or purple with numerous petals and stamens. In the Mediterranean b...
Cortaderia selloana
Magnoliophyta» Magnoliophyta» Liliopsida» Poales» Poaceae» Cortaderia selloana
An erect perennial, tussock grass, up to 2-4 meters tall. It has large (1-3 meters), deep green, attenuate leaves with serrulate margins. Inflorescences consist of several large nodding plumose panicles. It flowers from August to December....
Echinocystis lobata
Magnoliophyta» Magnoliophyta» Rosopsida» Cucurbitales» Cucurbitaceae» Echinocystis lobata
This annual growing vine can climb up to 12 m. It is a very fast growing plant, producing many branches at a fast rate. It germinates in May, flowers from July to September and leaves die in October. The flowers are monoecious and greenish to white. ...
Fallopia japonica
Magnoliophyta» Magnoliophyta» Rosopsida» Caryophyllales» Polygonaceae» Fallopia japonica
Herbaceous perennials with robust erect stems up to 4 m tall and extensive system of rhizomes, 15-20 m long, penetrating 2-3 m deep in soil. The invasive knotweeds in Europe include Fallopia japonica var. japonica, F. sachalinensis, ...
Hedychium gardnerianum
Magnoliophyta» Magnoliophyta» Liliopsida» Zingiberales» Zingiberaceae» Hedychium gardnerianum
A large leafy herb that can reach between1 and 3 m in height. Lance-shaped leaves arise off stems or basal stock. Fragrant yellow flowers are borne in long 25-30cm spikes. Red stamens are not present in the more cream coloured flowers of yellow ginge...
Heracleum mantegazzianum
Magnoliophyta» Magnoliophyta» Rosopsida» Apiales» Apiaceae» Heracleum mantegazzianum
It is monocarpic perennial, which persists several (usually 3-5) years in rosette stage, with leaves up to 2.5m long. After reaching the mature stage it flowers and dies. The flowering stem can be up to 5m high and bears large umbels with small white...
Impatiens glandulifera
Magnoliophyta» Magnoliophyta» Rosopsida» Ericales» Balsaminaceae» Impatiens glandulifera
A green vascular annual plant up to 2.5m tall with large pink to purple flowers and green fruits around 5 cm long. Usually grows in riparian habitats and in other disturbed places with good water and nutrient supply....
Opuntia ficus-indica
Magnoliophyta» Magnoliophyta» Rosopsida» Caryophyllales» Cactaceae» Opuntia ficus-indica
This cactus can reach up to 2 m height. Succulent stems are flat, oval and segmented. Flowers 5-6 cm in diameter are orange. Fruits have the size and shape of a fig and are purple. It has a CAM physiology with very high water-use efficiency. ...
Oxalis pes-caprae
Magnoliophyta» Magnoliophyta» Rosopsida» Oxalidales» Oxalidaceae» Oxalis pes-caprae
A short perennial herb forming large clonal colonies reproducing by annual bulbs. Flowering takes place between January and March, and is synchronous across the colony, producing spectacular displays of 1-5 pedicels with large cup-shaped bright yello...
Paspalum paspaloides
Magnoliophyta» Monocotyledonae» Cyperales» Poaceae» null» Paspalum paspaloides
It is a creeping stoloniferous perennial herb, up to 50 cm tall; leaves are stiff, narrow, about 10 cm in length, with sheaths ciliate on margin (Clayton 1994). Usually every inflorescence has two racemes 1.5-7 cm, with ovate, pale-green spikelets. T...
Prunus serotina
Magnoliophyta» Magnoliophyta» Rosopsida» Rosales» Rosaceae» Prunus serotina
This tree can reach up to 35 m in height. Leaves are entire and shiny. Flowers are white and organized in an oblong-cylindrical raceme 10-15 cm long. Fruits are blackberries, about 8 mm in diameter. Wood and fruits are used commercially. ...
Rhododendron ponticum
Magnoliophyta» Magnoliophyta» Rosopsida» Ericales» Ericaceae» Rhododendron ponticum
This evergreen shrub is densely branched growing to 5m. Flowers, borne in racemes of 10-15, are violet to purple. Pollination by insects results in the production of numerous small seeds within a woody capsule....
Robinia pseudoacacia
Magnoliophyta» Magnoliophyta» Rosopsida» Fabales» Fabaceae» Robinia pseudoacacia
This deciduous N-fixing tree can reach up to 30 m in height. The bark is thick, deeply furrowed and has stipular spines on the twigs. It has alternate leaves, pinnately compound. The inflorescence is a pendant large raceme of white highly scented flo...
Rosa rugosa
Magnoliophyta» Magnoliophyta» Rosopsida» Rosales» Rosaceae» Rosa rugosa
It is a small sprouting shrub that forms dense thickets, mainly in coastal habitats. The surface of the leaves is wrinkled, dark green, smooth above while pubescent and slightly sticky underneath. The twigs are stout and covered with thin, straight s...