|Botanical Name||Rumex sagittatus|
IdentificationLow climbing or scrambling herb. Tuberous woody rootstock, stems to 3 m long. Arrow-head shaped leaves 30-80 x 20-60 mm. Spikes of small, attractive yellow-pink flowers Nov-Mar are very distinctive.
HabitatsCoastal areas, road and railway verges, waste lands, near hedges and settled areas. Common and widespread.
Impact to Biota and EcosystemsDevelops into smothering mass among native plants.
Dispersal Routes, Vectors, Infestation SourcesPersistent tubers and creeping rooting stems. Broken roots resprout. Wind dispersed seed.
Grubbing out roots is very difficult and any root portion broken off will sprout.
Spray with selected herbicide.
(i) Tordon 2 g granules (Herbicide has long residual life in soil.)
Rate - 2 g per plant. Apply ½ level teaspoon to the crushed centre of each plant.
(ii) Metsulfuron + Penetrant
Rate - Knapsack 5 g Metsulfuron + 10 ml Penetrant/10 litres water.
(iii) Glyphosate + Penetrant
Rate - Handgun 1 litre Glyphosate + 200 ml Penetrant/100 litres water. Knapsack 100 ml Glyphosate + 20 ml Penetrant/10 litres water.
Develops numerous tubers beneath the soil surface, allowing plant to easily regenerate if the top growth is pulled away. Spray with Glyphosate or Metsulfuron.