''Pseudowintera'' is a

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial n ...

of woody

evergreen In botany, an evergreen is a plant which has foliage that remains green and functional through more than one growing season. This also pertains to plants that retain their foliage only in warm climates, and contrasts with deciduous plants, which ...

flowering

tree In botany, a tree is a perennial plant with an elongated stem, or trunk, usually supporting branches and leaves. In some usages, the definition of a tree may be narrower, including only woody plants with secondary growth, plants that are ...

s and shrubs, part of family

Winteraceae Winteraceae is a primitive family of tropical trees and shrubs including 93 species in five genera. It is of particular interest because it is such a primitive angiosperm family, distantly related to Magnoliaceae, though it has a much more sout ...

. The species of ''Pseudowintera'' are native to

New Zealand New Zealand ( mi, Aotearoa ) is an island country in the southwestern Pacific Ocean. It consists of two main landmasses—the North Island () and the South Island ()—and over 700 List of islands of New Zealand, smaller islands. It is the ...

. Winteraceae are

magnoliids Magnoliids (or Magnoliidae or Magnolianae) are a clade of flowering plants. With more than 10,000 species, including magnolias, nutmeg, bay laurel, cinnamon, avocado, black pepper, tulip tree and many others, it is the third-largest group of ang ...

, associated with the humid

Antarctic flora Antarctic flora are a distinct community of vascular plants which evolved millions of years ago on the supercontinent of Gondwana. Presently, species of Antarctica flora reside on several now separated areas of the Southern Hemisphere, includin ...

of the southern hemisphere. Horopito can be chewed for a hot, peppery taste. *''

Pseudowintera axillaris The ''Pseudowintera axillaris'' is a shrub like tree, endemic to New Zealand. They are members of the Winterace family and are known for their peppery taste, and glossy green leaves. Description The ''Pseudowintera axillaris'', or Lowland Horop ...

'', is known as the lowland horopito. It is a shrub or small tree growing up to eight metres tall in lowland and lower montane forests from 35° to 42° South. In the

South Island The South Island, also officially named , is the larger of the two major islands of New Zealand in surface area, the other being the smaller but more populous North Island. It is bordered to the north by Cook Strait, to the west by the Tasma ...

it grows West of the Main Divide. *'' Pseudowintera colorata'', or mountain horopito, is an evergreen shrub or small tree (1–2.5 m) commonly called pepperwood because its leaves have a very hot bite. Its yellow and green leaves are blotched with red; new leaves in the spring are bright red. It is widespread throughout New Zealand, from lowland forests to higher montane forests, and from 36° 30' South as far southwards as

Stewart Island/Rakiura Stewart Island ( mi, Rakiura, ' glowing skies', officially Stewart Island / Rakiura) is New Zealand's third-largest island, located south of the South Island, across the Foveaux Strait. It is a roughly triangular island with a total land a ...

. Because of its various uses, both medicinal and culinary, the name horopito when used in common speech normally refers to the colorata species. *''

Pseudowintera traversii ''Pseudowintera traversii'', sometimes called Travers horopito, is a species of woody shrub in the family Winteraceae. The specific epithet ''traversii'' is in honor of naturalist Henry H. Travers (1844–1928), son of William Thomas Locke Tr ...

'', or Travers horopito, is a compact shrub up to one metre tall. It grows naturally only in the northwest corner of the South Island, from

Collingwood Collingwood, meaning "wood of disputed ownership", may refer to: Educational institutions * Collingwood College, Victoria, an Australian state Prep to Year 12 school * Collingwood College, Durham, college of Durham University, England * Collingw ...

to Westport.

Cultivation

Horopito spreads naturally through regrowth on cleared land but may often be found in domestic gardens as a decorative plant. Planting for commercial purposes has begun in recent years.

Pharmaceutical use

Horopito contains a substance called ''sesquiterpene dialdehyde polygodiali'', otherwise known as '' polygodial'' that has a number of biological properties including

antifungal An antifungal medication, also known as an antimycotic medication, is a pharmaceutical fungicide or fungistatic used to treat and prevent mycosis such as athlete's foot, ringworm, candidiasis (thrush), serious systemic infections such as cry ...

antimicrobial An antimicrobial is an agent that kills microorganisms or stops their growth. Antimicrobial medicines can be grouped according to the microorganisms they act primarily against. For example, antibiotics are used against bacteria, and antifungals ...

anti-inflammatory Anti-inflammatory is the property of a substance or treatment that reduces inflammation or swelling. Anti-inflammatory drugs, also called anti-inflammatories, make up about half of analgesics. These drugs remedy pain by reducing inflammation as ...

antiallergic An allergen is a type of antigen that produces an abnormally vigorous immune response in which the immune system fights off a perceived threat that would otherwise be harmless to the body. Such reactions are called allergies. In technical terms ...

and insecticide effects. Polygodial has been tested as a very effective inhibitor of

Candida albicans ''Candida albicans'' is an opportunistic pathogenic yeast that is a common member of the human gut flora. It can also survive outside the human body. It is detected in the gastrointestinal tract and mouth in 40–60% of healthy adults. It is usua ...

.Lee, S.H., Lee, J.R., Lunde, Kubo, I., In vitro antifungal susceptibilities of Candida albicans and other fungal pathogens to polygodial, a sesquiterpene dialdehyde. , 1999, Planta Medica 65, pp 204-208 Horopito was used traditionally by Maori for a variety of medicinal purposes including treatment of: fungal skin infection, stomach pain, diarrhoea and as an analgesic. Early European settlers to New Zealand also used horopito for medicinal purposes.

Culinary use

Horopito leaves are used in cooking in a variety of ways. Horopito is now being used as a seasoning in modern New Zealand cuisine. Typically the leaves are dried and then ground to form a powder. The powder may be used wherever black pepper is used and applied directly to meats, mixed with oils, used to make condiments (e.g. with mustard), in vinegars, biscuits and even ice-cream.

References

{{Taxonbar, from=Q7255714 Winteraceae Canellales genera Trees of New Zealand Māori cuisine Endemic flora of New Zealand