Tiny wildflowers grow amongst the tussock grasses including "Veronica", "Viola" and "Gaultheria". Wintergreen is a group of aromatic plants, many in the genus "Gaultheria". Gaultheria insipida, called chichaja in Spanish, is a flowering shrub of the plant genus "Gaultheria". In English, it is known as salal, shallon, or simply gaultheria in Britain. Wintergreen berries, from "Gaultheria procumbens", are used medicinally. The leaves and fruit of "Gaultheria humifusa" are edible. Wintergreens such as "Gaultheria humifusa" and "Gaultheria procumbens" are also prostrate growers. Gaultheria rupestris is a shrub in the family Ericaceae. The genus "Gaultheria" is found across Australia, New Zealand, Asia and North and South America. "Gaultheria shallon" is tall, sprawling to erect. The fruit of most other "Gaultheria" species is insipid in flavour and not extensively consumed. Some species in the genera "Epigaea", "Arctostaphylos" and "Gaultheria" were formerly classified in "Arbutus". The American wintergreen, "Gaultheria procumbens", belongs to a different genus. The next closest relative to the two species is the New Zealand species "Gaultheria oppositifolia".