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| Adesmia | |
|---|---|
| Name | Adesmia |
| Regnum | Plantae |
| Clade1 | Angiosperms |
| Clade2 | Eudicots |
| Clade3 | Rosids |
| Ordo | Fabales |
| Familia | Fabaceae |
| Subfamilia | Faboideae |
| Tribus | Loteae |
| Genus | Adesmia |
Adesmia Adesmia is a genus of flowering plants in the family Fabaceae characterized by shrubs and herbaceous species native largely to South America. Taxonomists, botanists, and ecologists have treated the genus in floristic accounts, checklists, and monographs produced by institutions such as the Royal Botanic Gardens, Kew, the Missouri Botanical Garden, and regional herbaria. Species within the genus appear in floras of countries including Argentina, Chile, Peru, and Bolivia, and are referenced in works by authors associated with the International Plant Names Index and the Global Biodiversity Information Facility.
The genus was described in 1794 and placed in Fabaceae within the tribe Loteae by historical authors and later revised by systematists using morphological and molecular evidence. Major taxonomic treatments have been published in journals linked to the Smithsonian Institution, the Royal Society, and universities such as the University of Buenos Aires and the University of Chile. Molecular phylogenetic analyses employing markers used by research groups at the Royal Botanic Gardens, Kew and the New York Botanical Garden have tested relationships among Adesmia and allied genera like Lotus, Dorycnium, and Hammatolobium. Nomenclatural decisions are governed by the International Code of Nomenclature for algae, fungi, and plants and reflected in databases such as The Plant List and the Catalogue of Life. Prominent taxonomists who have worked on the genus include researchers affiliated with the Natural History Museum, London and regional experts from the Museo Nacional de Historia Natural (Chile).
Species exhibit a range of growth forms from low herbs to woody shrubs, with morphological characters used in keys produced by the Flora of North America tradition and South American floras. Diagnostic features include pinnate to simple leaves, stipules, papilionoid flowers with standard, wing and keel petals as described in works of the Botanical Society of America, and often dehiscent legumes similar to those in other Faboideae genera. Vegetative and reproductive morphology is detailed in monographs published by botanical gardens such as the Missouri Botanical Garden and referenced in field guides used by researchers at the Instituto de Botánica Darwinion. Illustrations and dichotomous keys appear in floristic treatments from the Jardín Botánico Nacional and university press volumes.
The genus is primarily distributed in temperate to arid regions of southern South America, notably in Patagonia, the Andes, and the Monte Desert, with occurrences recorded in Argentina, Chile, Peru, Bolivia, and occasional reports from Brazil. Herbarium specimens are curated by institutions including the Royal Botanic Gardens, Kew, the Missouri Botanical Garden, and national herbaria such as the Herbario Nacional de Bolivia. Habitats range from montane scrub associated with Polylepis woodlands to steppe and coastal heath near sites documented by the Instituto Antártico Chileno. Elevational ranges cited in regional floras include lowland plains, mid-elevation valleys, and high-Andean puna.
Adesmia species participate in ecological interactions typical of Fabaceae, including associations with nitrogen-fixing bacteria documented in ecological studies from the University of Chile and the Universidad de Buenos Aires. Pollination syndromes involve bees and other floral visitors recorded by entomologists associated with the Smithsonian Tropical Research Institute and regional universities; seed dispersal has been attributed to autochory and occasional biotic vectors noted in field studies conducted by researchers at the Universidad de Concepción. Life-history strategies vary from short-lived perennials to woody, long-lived shrubs, with phenology described in national botanical bulletins and conservation assessments by agencies such as the Comisión Nacional de Medio Ambiente.
Local communities in regions of Argentina and Chile have used certain species in traditional practices recorded by ethnobotanists from institutions like the Museo Nacional de Historia Natural (Chile) and the Instituto Nacional de Tecnología Agropecuaria (INTA). Uses documented in ethnobotanical surveys include forage in pastoral systems studied by researchers at the Facultad de Agronomía (UBA) and potential applications in restoration projects promoted by the World Wildlife Fund and regional conservation NGOs. Botanical gardens such as the Jardín Botánico de Córdoba maintain living collections for education and display, while academic studies from the Pontifical Catholic University of Chile have examined secondary metabolites with possible pharmacological relevance.
Conservation status assessments appear in national red lists prepared by environmental ministries and in compilations by the International Union for Conservation of Nature and regional conservation organizations. Threats include habitat loss from agriculture and grazing documented by the Food and Agriculture Organization, invasive species reported in environmental impact assessments by the Comisión Nacional de Investigación Científica y Tecnológica, and climate change impacts modeled by research groups at the University of Oxford and the National Center for Atmospheric Research. Ex situ conservation efforts are undertaken by botanical institutions including the Royal Botanic Gardens, Kew and the Missouri Botanical Garden, with seed banking and cultivation programs coordinated with national herbaria and universities.
Category:Fabaceae Category:Flora of South America