14-489: See List of Berberis and Mahonia species Mahonia is a formerly accepted genus of approximately 70 species of shrubs or, rarely, small trees with evergreen leaves in the family Berberidaceae , native to eastern Asia, the Himalaya, North America, and Central America. They are closely related to the genus Berberis and as of 2023 the majority of botanical sources list it as a synonym for Berberis. However, there
28-827: A paraphyletic group of shrubs bearing imparipinnate evergreen leaves, which are then divided into three genera: Mahonia , Alloberberis (formerly Mahonia section Horridae ), and Moranothamnus (formerly Berberis claireae ); a broadly-circumscribed Berberis (that is, including Mahonia , Alloberberis , and Moranothamnus ) would also be monophyletic . Mahonia species bear pinnate leaves 10–50 cm (3.9–19.7 in) long with 3 to 15 leaflets, and flowers in racemes which are 5–20 cm (2.0–7.9 in) long. Several species are popular garden shrubs, grown for their ornamental, often spiny, evergreen foliage, yellow (or rarely red) flowers in autumn, winter and early spring, and blue-black berries . The flowers are borne in terminal clusters or spreading racemes, and may be among
42-590: A broadly-circumscribed Berberis (that is, including Mahonia , Alloberberis , and Moranothamnus ) would also be monophyletic . Mahonia species bear pinnate leaves 10–50 cm (3.9–19.7 in) long with 3 to 15 leaflets, and flowers in racemes which are 5–20 cm (2.0–7.9 in) long. Several species are popular garden shrubs, grown for their ornamental, often spiny, evergreen foliage, yellow (or rarely red) flowers in autumn, winter and early spring, and blue-black berries . The flowers are borne in terminal clusters or spreading racemes, and may be among
56-515: A single leaflet and are termed "unifoliolate"; additionally their branched spines are modified compound leaves ). However, recent DNA -based phylogenetic studies retain the two separate genera , by clarifying that unifoliolate-leaved Berberis s.s. is derived from within a paraphyletic group of shrubs bearing imparipinnate evergreen leaves, which are then divided into three genera: Mahonia , Alloberberis (formerly Mahonia section Horridae ), and Moranothamnus (formerly Berberis claireae );
70-471: Is considered by most authorities to be a rejected synonym for Mahonia , yet the Plant List does accept a few species in this genus. This is an old argument not likely to be resolved soon, and certainly not here on Misplaced Pages. Our interest is in assisting readers find the web pages on the appropriate species, despite the dual nomenclature. Below are species accepted by The Plant List as members of one genus or
84-637: Is still disagreement among botanists, and as recently as 2017 papers have been published arguing for the validity of the genus. In addition, sources that are updated less frequently like the USDA Natural Resources Conservation Service PLANTS database have many plants listed in Mahonia . Most botanists prefer to classify Mahonia as a part of Berberis because several species in both genera are able to hybridize , and because there are no consistent morphological differences between
98-582: The Berberidaceae , found in many countries. Botanists have for many years had no consensus on the classification, some preferring to treat the group as a single genus ( Berberis ), while others opt to separate the two groups into distinct genera. Therefore, many species have two scientific names, one in Berberis , the other in Mahonia , each used by botanists on one side of the debate. A third generic name, Odostemon , can be found in older literature. It
112-559: The Lewis and Clark Expedition . The type species of the genus is M. aquifolium . The following list includes all species of the genus Mahonia that were accepted by Tropicos , Missouri Botanical Garden in 2016. For each, binomial name is followed by author citation . Some Mahonia species serve as alternate hosts for the cereal disease stem rust ( Puccinia graminis ) . List of Berberis and Mahonia species Berberis and Mahonia are two widespread and common members of
126-454: The USDA Natural Resources Conservation Service PLANTS database have many plants listed in Mahonia . Most botanists prefer to classify Mahonia as a part of Berberis because several species in both genera are able to hybridize , and because there are no consistent morphological differences between the two groups other than the leaf pinnation ( Berberis sensu stricto appear to have simple leaves, but these are in reality compound with
140-400: The earliest flowers to appear in the growing season. The ripened fruits are acidic with a very sharp flavor. The plants contain berberine , a compound found in many Berberis and Mahonia species which causes vomiting, lowered blood pressure, reduced heart rate, lethargy, and other ill effects when consumed. The genus name, Mahonia , derives from Bernard McMahon , one of the stewards of
154-424: The earliest flowers to appear in the growing season. The ripened fruits are acidic with a very sharp flavor. The plants contain berberine , a compound found in many Berberis and Mahonia species which causes vomiting, lowered blood pressure, reduced heart rate, lethargy, and other ill effects when consumed. The genus name, Mahonia , derives from Bernard McMahon , one of the stewards of the plant collections from
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#1733130261437168-451: The family Berberidaceae , native to eastern Asia, the Himalaya, North America, and Central America. They are closely related to the genus Berberis and as of 2023 the majority of botanical sources list it as a synonym for Berberis. However, there is still disagreement among botanists, and as recently as 2017 papers have been published arguing for the validity of the genus. In addition, sources that are updated less frequently like
182-494: The other, all alphabetized by specific epithet with links to synonyms in the other genus, if such a synonym exists. World Flora Online which replaced The Plant List (since 2013), only lists species of Berberis and places Mahonia Nutt as a synonym. They list up to 623 species. Odostemon See List of Berberis and Mahonia species Mahonia is a formerly accepted genus of approximately 70 species of shrubs or, rarely, small trees with evergreen leaves in
196-418: The two groups other than the leaf pinnation ( Berberis sensu stricto appear to have simple leaves, but these are in reality compound with a single leaflet and are termed "unifoliolate"; additionally their branched spines are modified compound leaves). However, recent DNA -based phylogenetic studies retain the two separate genera , by clarifying that unifoliolate-leaved Berberis s.s. is derived from within
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