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Identification Sheet for Japanese Knotweed
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Leaves:
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10 -15cm in length, green, shield shaped with pointed tips and a flat base, arranged in a zig-zag formation.
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Stem:
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Bamboo like stem, green with a red and purple mottled colour, hollow.
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Flowers:
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Small creamy/white in colour, appearing in later Summer and throughout Autumn.
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Rhizome:
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White shoots emerging from the rhizome. Bright orange inside rhizome.
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Identification Sheet for Himalayan Knotweed
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Leaves:
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Large lanceolate type leaf often with a reddish mid-rib.
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Stem:
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Green stem becoming red nearer the flowering heads. Similar to bamboo in appearance.
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Flowers:
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Small white flowers appearing from a green/red stem, appearing in late Summer and Autumn.
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Rhizome:
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Roots are shallow making it easy to pull up.
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Identification sheet for Giant Rhubarb
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Leaves:
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Very large umbrella-sized leaves, up to 2m across.
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Stems:
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Leaf stalks up to 1.5m long with reddish bristles and weak spines.
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Flower:
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A tall and large "cone like" structure, up to 1m in height.
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Rhizome:
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Has a large, dense, horizontal rhizome that creeps across the ground
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Identification Sheet for Giant Hogweed
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Height:
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The size of Giant Hogweed makes it easy to identify, as it can grow up to 5-6m in height.
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Stem:
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The main stem is large, usually with purple blotches, hollow and can have hairy bristles and be 5-10 cm in diameter.
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Flowers:
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White or rarely pink, flowering from June to August. There can be up to 50,000 seeds per plant.
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Leaves:
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Serrated and sharply divided leaves, can grow to 3m in length and 1.5m wide.
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Identification Sheet for Himalayan Balsam
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Height:
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Plant grows up to 3 metres (approx 10ft).
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Leaves:
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Green and serrated, opposite leaves in whorls of 3-5, may also have reddish mid-rib.
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Stem:
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Brownish/green hollow stems which change to a deep red colour closer to the flowering head.
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Flower:
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Pink trumpet shaped flower with wide petals.
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Roots :
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The plant has very shallow roots, making it very easy to pull out of the ground.
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Seeds :
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Ripe seeds explode when touched. Seeds can be spread up to 7 metres from the parent plant.
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Identification Sheet for Rhododendron
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Height:
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Plant can grow up to 6 metres (approx 20ft).
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Leaves:
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Oval leathery leaves with dull green upper surface and pale green underside, in spiral at end of stem.
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Stem:
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Brown solid stems / trunk, often dense and twisted, grows up to 150mm in diameter.
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Flower:
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Attractive 5 petal, purple to pink flowers, occasionally whiteish.
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Seeds :
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Seed pods form after flowering, typically dispersed long distances by wind.
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