T.E.R:R.A.I.N - Taranaki Educational Resource: Research, Analysis and Information Network


Koromiko (Hebe salicifolia)

Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked):
Asterids
Order: Lamiales
Family: Plantaginaceae
Genus: Hebe Species
Botanical name: Hebe salicifolia
Common name: Koromiko,

Koromiko (Hebe salicifolia) is a native to New Zealand, It belongs to a Genus of about 90 species and is the largest plant genus in New Zealand. Apart from H. rapensis (endemic to Rapa), all species occur in New Zealand. Hebes has four perpendicular rows of leaves in opposite decussate pairs. The flowers are perfect, the corolla usually has four slightly unequal lobes, the flower has two stamens and a long style. Flowers are arranged in a spiked inflorescence. The identification of Hebe species is difficult, especially if they are not in flower. The plants range in size from dwarf shrubs to small trees up to 7 metres, and are distributed from coastal to alpine ecosystems.

Koromiko is a plant used by the Maori for a number of medicinal purposes. It is thought to have first been discovered by settlers in the Dusky Sound during one of Captain Cook's voyages. Rongoa is the Maori term for medicines that are produced from native plants in New Zealand. The Rongoa of the Koromiko are The young leaf tips can be chewed to relieve stomach aches, diarrhoea and dysentery. It was used extensively in the Second World War for this purpose. Dried leaves were sent to New Zealand soldiers overseas to cure dysentery, which proved very effective. The active ingredient is a phenolic glycocide. Leaves can be used as a pack on babies for skin sores. Tender leaves were picked and applied as a poultice for ulcers; this method was also used for the pakiwhara - venereal disease. Used also for headaches, kidney and bladder trouble and British cholera. An infusion of the leaf acts as a powerful astringent and if chewed can promote hunger. Because this plant was so highly regarded for its medicinal purposes, the leaves used to be stored in gourds for later use. A preparation of the plant was also used in the treatment of hawaniwani, a skin disease affecting children. In pregnancy the leaves were pressed between the legs into the woman's vagina if haemorrhage was present
Koromiko produces little wood but it is well known for its toughness and elasticity. Koromiko branches give off a lot of heat when burned.