Fine Art

Fallowiana inflorescence 1

Classification System: APG IV

Superregnum: Eukaryota
Regnum: Plantae
Cladus: Angiosperms
Cladus: Eudicots
Cladus: Core eudicots
Cladus: Asterids
Cladus: Lamiids
Ordo: Lamiales

Familia: Scrophulariaceae
Tribus: Buddlejeae
Genus: Buddleja
Sectio: Buddleja sect. Alternifoliae
Species: Buddleja fallowiana
Name

Buddleja fallowiana Balf.f. & W.W.Sm.
References

Notes from the Royal Botanic Garden, Edinburgh. Edinburgh and Glasgow 10:15. 1917
USDA, ARS, Germplasm Resources Information Network. Buddleja fallowiana in the Germplasm Resources Information Network (GRIN), U.S. Department of Agriculture Agricultural Research Service. Accessed: 07-Oct-06.

Buddleja fallowiana is a species of flowering plant in the figwort family Scrophulariaceae.[1] It is endemic to the Yunnan province of western China, where it grows in open woodland, along forest edges and watercourses.[2] The plant was collected in China by the Scottish botanist George Forrest in 1906, and named in 1917 by Balfour & 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.[3]
Description

Buddleja fallowiana is a deciduous shrub typically growing to a height of 4 m (13 ft). Of loose habit, the plant has young shoots clothed with a dense white felt. The ovate to narrowly elliptic leaves are 4–13 cm (1.6–5.1 in) long by 1 cm (0.39 in) wide, acuminate or acute at the apex; the upper and lower surfaces densely tomentose, bestowing a silvery grey sheen. The inflorescences are slender, thyrsoid, sometimes interrupted, with panicles at the ends of the current year's shoots. The flowers are 5–15 cm (2.0–5.9 in) long by 2–3 cm (0.79–1.18 in) wide, comprising fragrant lavender blue flowers with orange throats, the corollas 2 – 3.5 mm wide by 9 – 14 mm long with erect lobes. The flowers bloom in late summer and autumn.[4]

Growth is significantly slower than that of B. davidii; Bean considered the species more closely allied to B. nivea,[2] although its chromosome number, 2n = 76 (tetraploid), places it alongside the similarly tetraploid B. davidii.[5]

Buddleja fallowiana leaf.jpg
Fallowiana inflorescence 2.jpg

Cultivation

Somewhat tender, B. fallowiana is best grown against a wall. However, if cut to the ground by frost, it will grow again from the base. Hardiness: USDA zones 8–9.[6]
Varieties

Buddleja fallowiana var. alba.

The variety was considered horticulturally superior to B. fallowiana by Bean, who thought it one of the most attractive of all Buddlejas;[2] it was accorded the Royal Horticultural Society's Award of Garden Merit in 1993.[7] However, its varietal status was challenged by Leeuwenberg, who considered its colouration insufficient to justify it as a variety, and sank it as simply B. fallowiana.[4]
Hybrid cultivars

A number of hybrid cultivars have been raised, invariably through a crossing of the species with Buddleja davidii:

Buddleja 'Lochinch'
Buddleja 'Mayford Purple'
Buddleja 'Vashon Skies'
Buddleja 'West Hill'

References

"Buddleja fallowiana Balf.f. & W.W.Sm". Plants of the World Online. The Trustees of the Royal Botanic Gardens, Kew. n.d. Retrieved August 3, 2020.
Bean, W. J. (1917). Trees and shrubs hardy in Great Britain, 7th edition. Murray, London.
Sabourin, L. (1929). Le Buddleja fallowiana et sa variété alba. Revue Horticole, pp. 418-420, Vol. 101. 1929.
Leeuwenberg, A. J. M. (1979) The Loganiaceae of Africa XVIII Buddleja L. II, Revision of the African & Asiatic species. H. Veenman & Zonen, Wageningen, Nederland.
Chen, G, Sun, W-B, & Sun, H. (2007). Ploidy variation in Buddleja L. (Buddlejaceae) in the Sino - Himalayan region and its biogeographical implications. Botanical Journal of the Linnean Society. 2007, 154, 305 – 312. The Linnean Society of London.
Stuart, D. D. (2006). Buddlejas. RHS Plant Guide. Timber Press, Oregon. ISBN 978-0-88192-688-0

"RHS Plant Selector - Buddleja fallowiana var. alba". Retrieved 15 April 2020.

Li, P. T. & Leeuwenberg, A. J. M. (1996). Loganiaceae, in Wu, Z. & Raven, P. (eds) Flora of China, Vol. 15. Science Press, Beijing, and Missouri Botanical Garden Press, St. Louis, USA. ISBN 978-0915279371 online at www.efloras.org

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