Vascular – Exotic
Herbs - Dicotyledons other than Composites
The National Vegetation Survey (NVS) Databank is a physical archive and electronic databank containing records of over 94,000 vegetation survey plots - including data from over 19,000 permanent plots. NVS maintains a standard set of species code abbreviations that correspond to standard scientific plant names from the Ngä Tipu o Aotearoa - New Zealand Plants database.
Terrestrial. A plant that grows in the shade (Forester pers. comm. 1996). Likes some shade and well-drained soils (Anon., 1997: Pestfacts 48, ARC). A plant of forested stream banks (Forester pers. comm. 1996). Shady areas in and around forest margins, plantations, hedges, disturbed or low forest (Webb et al., 1988).
Herb or subshrub with stems trailing or straggling and densely covered in purple hairs; leaves 5-12 x 3.5-7cm, broad-ovate, shining, purple below, hairy; flowers along stalks up to 30cm long, sometimes with short lateral branches at base; flowers white with purple dots inside; nutlets about 1.5mm diameter, dark brown (Webb et al., 1988).
Leaves are dotted with glands and have a strong, pungent smell.
December, January, February, March, April, May, June, July, August
Perennial. A plant that rampantly grows vegetatively. Spreads vegetatively by runners. Seed are not adapted for bird, wind or water dispersal therefore are only a minor factor in its spread.
E and S Africa
Reason for introduction
Resistant to frost (if growing under trees).
plectranthus: From the Greek plektron (spur) and anthos (flower), referring to the spurred flowers
National Pest Plant Accord species
This plant is listed in the 2020 National Pest Plant Accord. The National Pest Plant Accord (NPPA) is an agreement to prevent the sale and/or distribution of specified pest plants where either formal or casual horticultural trade is the most significant way of spreading the plant in New Zealand. For up to date information and an electronic copy of the 2020 Pest Plant Accord manual (including plant information and images) visit the MPI website.