Buddleja crispa, the Himalayan butterfly bush, is a deciduous shrub native to Afghanistan, Bhutan, North India, Nepal, Pakistan and China, where it grows on dry river beds, slopes with boulders, exposed cliffs, and in thickets, at elevations of 1400–4300 m. Named by Bentham in 1835, B. crispa was introduced to cultivation in 1850, and came to be considered one of the more attractive species within the genus; it ranked 8th out of 57 species and cultivars in a public poll organized by the Center for Applied Nursery Research (CANR) at the University of Georgia, US. In the UK, B. crispa was accorded the Royal Horticultural Society's Award of Merit in 1961. However, the species is not entirely cold-hardy, and thus its popularity is not as ubiquitous as it might otherwise be.
Buddleja colvilei is endemic to the eastern Himalaya; discovered by Hooker in 1849, he declared it 'the handsomest of all Himalayan shrubs.' In 1896 the species was awarded the RHS First Class Certificate (FCC), given to plants 'of outstanding excellence for exhibition'.
Buddleja alternifolia, known as alternate-leaved butterfly-bush, is a species of flowering plant in the figwort family, which is endemic to Gansu, China. A substantial deciduous shrub growing to 4 metres (13 ft) tall and wide, it bears grey-green leaves and graceful pendent racemes of scented lilac flowers in summer.
Buddleja fallowiana is a species of flowering plant in the figwort family Scrophulariaceae. It is endemic to the Yunnan province of western China, where it grows in open woodland, along forest edges and watercourses. The plant was collected in China by the Scottish botanist George Forrest in 1906, and named in 1917 by Balfour and Smith for George Fallow, a gardener at the Royal Botanic Garden Edinburgh. Fallow had died in Egypt in 1915 from wounds sustained fighting in the Gallipoli Campaign.
Celtis africana, the white stinkwood, is a deciduous tree in the family Cannabaceae. Its habit ranges from a tall tree in forest to a medium-sized tree in bushveld and open country, and a shrub on rocky soil. It occurs in Yemen and over large parts of Africa south of the Sahara. It is a common tree in the south and east of southern Africa, where the odour given off by freshly-cut green timber is similar to that of Ocotea bullata or black stinkwood.
Buddleja sterniana was a species sunk as Buddleja crispa by Leeuwenberg in 1979, and treated as such in the subsequent Flora of China. However, the plant remains widely known by its former epithet in horticulture.
Buddleja delavayi is a Chinese species discovered by Forrest in the Tali Range above Dali, Yunnan, in 1910; it is also found in Xizang (Tibet). The species was named for l'Abbé Delavay, the French missionary and plant collector, by Gagnepain in 1912. The shrub is of interest to the botanist because of its unique resting buds and the different types of inflorescence produced through the year.
Buddleja albiflora is a deciduous shrub native to the mountains of central China, where it grows on shrub-clad slopes at altitudes of between 1,000 and 2,000 m. Named rather carelessly by Hemsley, the species was discovered by Henry, and introduced to western cultivation by Wilson in 1900.
Buddleja polystachya is a multi-branched shrub or occasionally small tree endemic to the semi-arid highlands flanking the Red Sea in Eritrea, Ethiopia, Saudi Arabia, Somalia and Yemen, where it grows in secondary scrub or around forest, often along watercourses, at elevations of between 2,200 and 3,600 m; its range extends southward into the highlands of Kenya and Tanzania. The species was named by Georg Fresenius in the early part of the 19th century.
Buddleja bhutanica is a species of flowering shrub endemic to Bhutan, where it grows in bush on mountain slopes at elevations around 1,700 m. The shrub was first described and named by Yamazaki in 1971.
Buddleja asiatica is a somewhat tender deciduous shrub native to a vast area of the East Indies, including India, Nepal, Bangladesh, China, Taiwan, Burma, Thailand, Laos, Cambodia, Vietnam, Malaysia, New Guinea, and the Philippines, growing in open woodland at elevations < 2,800 m either as understorey scrub, or as a small tree. First described by Loureiro in 1790, B. asiatica was introduced to the UK in 1874, and accorded the RHS Award of Garden Merit in 1993. It is highly invasive in Hawaii, Guam, and the Northern Mariana Islands.
Buddleja cordata is endemic to Mexico, growing along forest edges and water courses at elevations of 1500–3000 m; it has also naturalized in parts of Ethiopia. The species was first described and named by Kunth in 1818.
Buddleja japonica is a deciduous shrub native to Honshu and Shikoku, Japan, where it grows on mountain slopes amid scrub. The shrub was named and described by Hemsley in 1889, and introduced to Western cultivation in 1896.
Buddleja loricata is a hardy evergreen shrub endemic to South Africa and Mozambique, where it grows on mountain slopes at elevations above 1,800 m. The shrub has only recently been introduced to cultivation in Europe.
Buddleja madagascariensis, the smokebush or Madagascan butterfly bush, is a species of flowering plant in the figwort family Scrophulariaceae. It is a substantial evergreen shrub with fragrant yellow flowers through autumn and winter.
Buddleja nivea is a vigorous shrub endemic to western China, evergreen in the wild, but deciduous in cultivation in the UK. The plant was discovered by Wilson in the Yangtze basin at altitudes of 700 – 3,600 m. Introduced to cultivation in 1901, it was named by Duthie in 1905. Several plants similar to the species but originally treated as species and varieties in their own right have now been sunk as B. nivea.
Buddleja paniculata is a species of flowering plant in the figwort family Scrophulariaceae, endemic to a wide upland area from northern India to Bhutan, growing along forest margins, in thickets, and on rocky slopes at elevations of 500–3,000 m (1,600–9,800 ft). The species was named by Wallich and introduced to the UK in 1823 as seed sent by Major Madden from the Himalayas to the Glasnevin Botanic Garden.
Buddleja axillaris is a shrub endemic to Madagascar, the Comoro Islands, and Tanzania, growing in forests at elevations of 300–1400 m. The species was first named and described by Willdenow in 1827.
Buddleja fallowianavar.albaSabourin is a white-flowered variety of B. fallowiana endemic to Yunnan in western China, where it grows in open woodland, along forest edges and watercourses. The shrub was considered superior to the lavender-blue flowered B. fallowiana by Bean, who thought it one of the most attractive of all buddlejas.
Buddleja macrostachya is a large deciduous shrub or small tree with a vast distribution, from Xizang (Tibet) through western China, Bhutan, Sikkim, northern India, Bangladesh, Myanmar (Burma), to Thailand and Vietnam, growing in scrub on mountain slopes to an altitude of 3,200 m, and along rivers in forests. The species was named and described by Wallich ex Bentham in 1835.
