Brachyglottis repanda, the rangiora or bushman's friend, is a small, bushy tree or tall shrub endemic to New Zealand. It grows to a height of . The petioles of the leaves have a characteristic groove up to long. The large leaves with a soft furry underside have been referred to as "bushman's toilet paper".
Rangiora is a species of shrub or small tree which grows to around tall and has corky bark. It has leathery long, wide leaves suspended off of grooved petioles. The leaves are a pale green above and white underneath as the underside is covered with many tiny white hairs. It flowers from August to October with dramatic panicle inflorescences made of six ribs and long involucral bracts. Pseudanthium are in diameter and the inflorescences contain 10âÂÂ12 yellow florets. The seeds are oblong and long, with rough yellow pappus. It fruits from November to December and disperses its seeds via the wind.
The MÃÂori language name for the plant, a, is of uncertain origin, but is formed from the words (sky) and (health). The word is unique to MÃÂori, and not used in other Polynesian languages for similar plants. Other MÃÂori language names include , , , , , , and . The species epithet Repanda means irregularly undulating, referring to the leaf margins. The colloquial name bushman's friend was coined by early European settlers in New Zealand, and is a reference to its use as an emergency toilet paper in the bush.
Rangiora is endemic to New Zealand, growing in the North Island and the South Island as far south as Greymouth. It is often an early pioneer species in disturbed areas of forest.
B. repanda plays host to the larvae of the moth species Stigmella cypracma. The larvae mine the leaves of B. repanda leaving damaged leaves in their wake.
Rangiora is easy to grow either from seed or from cuttings, though may be short-lived and requires a hard prune after flowering.
Rangiora in MÃÂori culture is a symbol of health and living, often contrasted with kawakawa, a plant associated with death. MÃÂori used the plant for a number of medicinal uses. Rangiora leaves were used for wounds and old ulcerated sores, and the gum was chewed for foul breath but was poisonous if swallowed. The plants were also used by hunters as a way to mark trails, by breaking and exposing the white undersides of the leaves.
The ethnographer Richard Taylor recorded that the leaves were used to wrap cakes made from hënau berry meal while they cooked in a hÃÂngë. They were also used, he claimed, to line the baskets which held the siftings of raupà  pollen in the process of making bread (from the pollen called pungapunga), the siftings then being thrown out. An oil can be produced by heating the gum, which was applied to fish hooks as a lacquer.
Rangiora leaves are also the basis for , a paper plane made from the leaves by children.
The leaves of the plant were used as emergency toilet paper used by early European settlers living or working in the bush. The reverse side of the leaves have also been used as notepaper.
Rangiora is poisonous, and has been linked to livestock deaths and poisonings. When used in MÃÂori traditional cuisine, the gum of the plant is used as a chewing gum and not swallowed, or leaves of the plant are used to wrap food cooked in a hÃÂngë. The botanist and chemist Bernard Aston reported that the honey made by bees produced with the nectar from rangiora is poisonous, and for this reason MÃÂori never collected honey when it was in flower. Livestock, particularly horses, are affected by the plant's toxins, making the animals appear drunk, stagger around and fall, often to their death, as a result.