Buddleja davidii var. nanhoensis

Buddleja davidii var. nanhoensis is endemic to Kansu, China, and introduced by Farrer in 1914.[1][2] The taxonomy of the plant and the other five davidii varieties has been challenged in recent years. Leeuwenberg sank them all as synonyms, considering them to be within the natural variation of a species,[3] a treatment adopted in the Flora of China published in 1996.[4]

Buddleja davidii var. nanhoensis
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Lamiales
Family: Scrophulariaceae
Genus: Buddleja
Species:
B. davidii
Variety:
B. d. var. nanhoensis
Trinomial name
Buddleja davidii var. nanhoensis
Rehder
Synonyms
  • Buddleja variabilis nanhoensis Chittenden

Description

Buddleja davidii var. nanhoensis is chiefly distinguished by its small size. Rarely growing to a height of > 1.5 m, the shrub has a more compact habit than the type, narrower leaves and shorter panicles.[1]

Cultivation

Now very rare in cultivation, unlike its various 'Nanho' hybrid cultivars, the shrub is still grown in the UK at the Sir Harold Hillier Gardens near Romsey.

Suppliers

There are seven nurseries in the UK still raising the shrub listed in the RHS Plantfinder .

gollark: Still, we can't *stay* in lockdown for an indefinite amount of time, it definitely has to be a temporary thing, and there seems to be a distinct lack of plans for dealing with COVID-19 after that.
gollark: I think it is significantly below 1 most places, which is something...
gollark: If you keep R *around* 1 but cannot get it lower - and since we can't really do total lockdowns I think that's the case in some places - you're not getting rid of it, just slowing down the whole thing.
gollark: That too.
gollark: Perhaps we are in the same time zone, or same country, or same constituency, or even same village, or same house, or same room.

References
  1. Bean, W. J. (1917). Trees and shrubs hardy in Great Britain, 7th edition. Murray, London.
  2. Hatch, L. (2007) Cultivars of Woody Plants Volume I (A-G) 2007 Edition. TCR Press Horticultural PDF. books.
  3. Leeuwenberg, A.J.M. (1979). The Loganiaceae of Africa XVIII Buddleja L. II. Revision of the African and Asiatic species. Mededelingen Landbouwhogeschool Wageningen, Nederland
  4. Li, P-T. & Leeuwenberg, A. J. M. (1996). Loganiaceae, in Wu, Z. & Raven, P. (eds) Flora of China, Vol. 15, p. 335. Science Press, Beijing, and Missouri Botanical Garden Press, St. Louis, USA. ISBN 978-0915279371 online at www.efloras.org


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