Pleasant-smelling, perennial groundcover <50cm tall. Square, hairy, purplish stems. Hairy yellow, 2-lipped flowers (Dec-Feb) in dense axillary whorls. Leaves mint-like, coarsely toothed, pale silvery grey patches on either side of midrib.
Shady places in scrub, modified forest, plantations.
Locally by layering & stem fragments. Garden escape.
Spreads rapidly & covers large areas of ground in open & shaded areas.
Follow up required 3-monthly until eradication achieved. No seedlings produced so eradication is possible.
1. Dig out small infestations removing all plant material.
2. Vial treatment (20g metsulfuron/1L). Place vials 5m apart & move monthly.
3. Weed wipe all year round (2g metsulfuron+1ml penetrant/L or 500ml glyphosate/1L).
4. Spray all year round (5g metsulfuron+10ml penetrant/10L).
Caution: when using any herbicide or pesticide PLEASE READ THE LABEL THOROUGHLY to ensure that all instructions and safety requirements are followed.