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logania (lōgāˈnēə), common name for the Loganiaceae, a family of herbs, shrubs, and trees of warmer climates, including many woody climbing species. Some plants of this family are grown in the United States as ornamentals, and several are sources of medicines and poisons. The former include introduced species of Logania (native to New Zealand and Australia) and several species of buddleia, or butterfly bush (genus Buddleia, sometimes considered a separate family). Two species of buddleia are native to Arizona and California. Carolina yellow jessamine, or jasmine (Gelsemium sempervirens), also called false jasmine, is the state flower of South Carolina. It is often grown as a porch vine in the South, and its dried roots were used medicinally as an antispasmodic and sedative. The strong poison strychnine, which also affects the central nervous system, comes from the seeds of several Strychnos species (nux-vomica native to S Asia, is the commercial source). Several tropical American species are ingredients of curare arrow poisons, which have yielded important medicines. Logania is classified in the division Magnoliophyta, class Magnoliopsida, order Gentianales.
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The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.



a genus of plants of the family Buddleiaceae (formerly assigned to the family Loganiaceae). They consist of shrubs or small trees, sometimes herbs. Blossoms are usually small, numerous, variously colored, and gathered into large inflorescences. There are approximately 100 species distributed in tropical and temperate regions of America, Asia, and South Africa. Some species of Buddleia have been cultivated as ornamentals. David’s buddleia (B. davidii, B. variabilis) is a small tree with fragrant blossoms; it originated in China and has many garden forms. Other species can also be cultivated in gardens of the southern USSR. Buddleia grows rapidly; some plants begin to blossom at two or three years of age.


Derev’ia i kustarniki SSSR, vol. 6. Moscow-Leningrad, 1962.
The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.


any ornamental shrub of the genus Buddleia, esp B. davidii, which has long spikes of mauve flowers and is frequently visited by butterflies: family Buddleiaceae
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
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Clave para la identificacion de las especies de Buddleja en Patagonia
Abbreviations refer to plants important to the slope of the correlation: Aga= Agastache hybrid; Age = Ageratina aromatica;; Bu = Buddleja davidii.
The genus Buddleja was named by von Linne (1737) to honor the English amateur botanist, Reverend Adam Buddle (Chittenden, 1951; Buddle, 2008; Noltie, 2008).
These results suggest that Buddleja species growing in harsher environments, as the small shrubs, show less variation in wood cell size, while species growing in more diverse environments may have more diverse habits and consequently greater wood cell size variation.
Pretty and pink: The beautiful; Buddleja davidii or Dartmoor Butterfly; Just visiting: A butterfly alights on a Buddleja davidii or August Purple Painted Nanko
| Prune summer-flowering deciduous shrubs such as Buddleja davidii, hardy fuchsias and lavatera - this will not affect their flowering as they flower on new wood.
One of the most popular buddleja cultivars, 'Lochinch', was a seedling discovered by chance in the castle of the same name in Scotland.
A new twist on a much–loved garden favourite, 'Buzz'™ is the world's first patio buddleja! The short stems and compact growing habit of these fantastic patio buddlejas make them perfect for growing in patio containers and small gardens.
EDITOR'S NOTE: Indeed, the species butterfly bush (Buddleja davidii) has become an invasive weed in mild parts of the Northwest and should not be planted there (sale in Oregon is limited to sterile kinds such as 'Blue Chip').
A Buddleja died here earlier this summer and a rose bush last year.
Many of our favourite deciduous shrubs that flower in the spring and summer, including Buddleja alternifolia, Cytissus scoparius, Deutzia, Forsythia, Hydrangea, macrophylla, Philadelphus, various spiraeas, Tamarix and Weigela, all produce their flowers on the previous season's growth.