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Old man's beard

Botanical Name Clematis vitalba
Family Ranunculaceae
Origin Europe, S W Asia

Identification

Also known as traveller's joy. Deciduous, climber with woody stems, climbing to canopy height. Leaves 50-150 mm long, 5 leaflets (1 or 3 leaflets in seedlings), arranged either side of an axis. Flowers four petalled, dull white, borne in panicles, 50 mm to 120 mm long. Seed vessels form grey tufted balls conspicuous in autumn, winter and early spring. Often confused with the native species which has only 3 leaflets.

Habitats

Shrub, wasteland, among willows, forest remnants, hedgerows, canopy light gaps, roadsides, gardens.

Impact to Biota and Ecosystems

At risk are secondary growth or disturbed native forest. Old man's beard climbs high into the canopy smothering and eventually blocking sunlight and killing the host tree.

Dispersal Routes, Vectors, Infestation Sources

Seed, wind and water dispersed. Vegetative growth. Can sprout from stem pieces. Spreads from gardens.

Management

Management 

Physical Control  
Disposal  
Chemical Control

 

Biological Control

 
Recommended Approach

Cut and treat every plant found. Immediate action is important.

Control 1. Cut vines as close to the ground as possible and treat stump liberally with 1 part Grazon (Triclopyr) to 20 parts of water or 1 part Glyphosate to 4 parts water. Leave aerial vine in the tree to dry out (this will prevent host tree damage).

Control 2. Take care not to damage support plant and surrounding vegetation.

Control 3. Dig out all seedlings.

Control 4. Repeat steps above each year until regrowth checked. New seedlings will be growing each year, so perseverance is necessary.

Control 5. Replant area cleared. This step is important. The cleared area will be susceptible to invasion by other weeds.

Further Comment

The differences between old man's beard and native clematis:

Old Man's Beard  Native Clematis
Five leaflets   Three leaflets
Deciduous    Evergreen
Flowers in summer Flowers in spring