|Botanical Name||Hypericum androsaemum|
|Origin||S. and W. Europe|
DescriptionEvergreen/semi-evergreen shrub or subshrub to 1.5 m tall. Oval leaves, usually opposite, without a stalk, to 100 mm. Terminal flower bunches, pale yellow, Nov-Feb. Round fruit, to 10 mm, red becoming black.
Where is it found?Rocky and open streams, coastal areas and inshore islands, shrublands, rocklands, gumlands, steepland forest and mobile slopes, coastal forest in light gaps, roadsides, gravel pits, exotic plantations, rough pasture. Fairly common on roadsides, banks and disturbed areas. Locally abundant.
Why is it a problem?Capacity to form extensive patches exceeding 1 ha in size. Dense cover of branches and rotting leaves can smother existing low growing plant communities and seriously inhibit regeneration (a semi-matting effect). May hold back successional forest communities. Is seen to infest forest communities under light shade. Plant species of rocklands and steep banks e.g. kowhai may be heavily impacted.
How does it spread?Spread by birds as well as soil disturbance.
How do I get rid of it?
Unpalatable to stock. Clear large plants with rotary slasher and spray regrowth.
Bury or compost. Allow sprayed vegetation to rot.
(i) Tordon 2G.
Rate - 55 grams/m2 of ground covered by the dripline of the bush.
Rate - Handgun 35 g Metsulfuron + 100 ml Penetrant/100 litres water.
Knapsack 5 gms Metsulfuron + 10 mls Penetrant/10 litres water.
Rate - Handgun 1 litre Glyphosate + 200 ml Penetrant/100 litres water.
Knapsack 100 mls Glyphosate + 20 mls Penetrant/10 litres water.
If spraying use Metsulfuron. Spray during the spring-autumn period.
Prevent entrance into areas of high conservation value which may be vulnerable to tutsan.