Berberis darwinii
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''Berberis darwinii'', Darwin’s barberry, is a
species In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate s ...
of
flowering plant Flowering plants are plants that bear flowers and fruits, and form the clade Angiospermae (), commonly called angiosperms. The term "angiosperm" is derived from the Greek words ('container, vessel') and ('seed'), and refers to those plants th ...
in the
family Family (from la, familia) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its ...
Berberidaceae, native to southern Chile and Argentina and naturalized elsewhere. Regional vernacular names include ''michay'', ''calafate'', and ''quelung''. Growing to tall, it is an
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 ...
thorny shrub.


Description

''Berberis darwinii'' has dense branches from ground level. The leaves are small oval, long and broad, with a spiny margin; they are borne in clusters of 2–5 together, subtended by a three-branched spine 2–4 mm long. The flowers are orange, 4–5 mm long, produced in dense
raceme A raceme ( or ) or racemoid is an unbranched, indeterminate type of inflorescence bearing flowers having short floral stalks along the shoots that bear the flowers. The oldest flowers grow close to the base and new flowers are produced as the s ...
s 2–7 cm long in spring. The fruit is a small purple-black
berry A berry is a small, pulpy, and often edible fruit. Typically, berries are juicy, rounded, brightly colored, sweet, sour or tart, and do not have a stone or pit, although many pips or seeds may be present. Common examples are strawberries, raspb ...
4–7 mm diameter, ripening in summer. ''Berberis darwinii'' was discovered in South America in 1835 by
Charles Darwin Charles Robert Darwin ( ; 12 February 1809 – 19 April 1882) was an English naturalist, geologist, and biologist, widely known for his contributions to evolutionary biology. His proposition that all species of life have descended fr ...
during the voyage of the 'Beagle'. It was one of many named in honour of Darwin. The berries of this species are known to have been consumed by prehistoric native peoples in the Patagonian region over millennia. It is a popular garden and hedging shrub in the British Isles. The
Royal Horticultural Society The Royal Horticultural Society (RHS), founded in 1804 as the Horticultural Society of London, is the UK's leading gardening charity. The RHS promotes horticulture through its five gardens at Wisley (Surrey), Hyde Hall (Essex), Harlow Carr (Nort ...
has given the species its
Award of Garden Merit The Award of Garden Merit (AGM) is a long-established annual award for plants by the British Royal Horticultural Society (RHS). It is based on assessment of the plants' performance under UK growing conditions. History The Award of Garden Merit ...
. The edible fruit is very acidic. Berberis darwinii - Flickr - Dick Culbert.jpg, Fruit Berberis darwinii - leaves - 02.JPG, Leaves Michay Parque Nacional Puyehue 04.jpg, Close-up of flowers


Invasive species

''Berberis darwinii'' is regarded as an invasive plant pest in New Zealand that escaped from gardens into indigenous plant communities via its bird-dispersed seeds. It is considered a serious threat to indigenous ecosystems throughout New Zealand and is listed on the National Pest Plant Accord. In Australia, the species is naturalised in the states of South Australia, Victoria, New South Wales and Tasmania. The species has also become sparingly naturalized in the US states of California and Oregon. It is often planted and sometimes naturalized in Ireland.Parnell, J. and Curtis, T. 2012.''Webb's An Irish Flora.'' Cork University Press.


See also

*
Lennoxamine Lennoxamine is an isoindolobenzazepine alkaloid, originally isolated from the Chilean barberry, ''Berberis darwinii ''Berberis darwinii'', Darwin’s barberry, is a species of flowering plant in the Family (biology), family Berberidaceae, nati ...


References

{{Authority control darwinii Flora of Argentina Flora of Chile Garden plants of South America