Buddleja yunnanensis

From Wikipedia, the free encyclopedia
Jump to: navigation, search
Buddleja yunnanensis
Budd. nivea var. yunnanensis foliage.jpg
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Asterids
Order: Lamiales
Family: Buddlejaceae
Genus: Buddleja
Species: B. yunnanensis
Binomial name
Buddleja yunnanensis
Gagnep.

Buddleja yunnanensis is a vigorous shrub native to Yunnan and much of the rest of south-western China, where it grows on forest margins, thickets, and along streams at elevations of 1,000 – 2,500 m. The shrub was first described and named by Francois Gagnepain in 1915, however its taxonomy remains a matter of contention. [1] [2] [3]

Description[edit]

B. yunnanensis can exceed 3 m in height. The opposite lanceolate leaves are of variable size, < 12 cm long by 4.5 cm wide. The lilac flowers form short panicles only 6 cm long by 2 cm wide, located at the ends of the shoots. [1] Chromosome number is 2n = 38 (diploid). [4]

Cultivation[edit]

Although hardy, the species is very uncommon in cultivation. Hardiness: USDA zone 8. [1]

References[edit]

  1. ^ a b c Stuart, D. (2006). Buddlejas. RHS Plant Collector Guide. Timber Press, Oregon, USA. ISBN 978-0-88192-688-0
  2. ^ 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
  3. ^ Leeuwenberg, A. J. M. (1979) The Loganiaceae of Africa XVIII Buddleja L. II, Revision of the African & Asiatic species. H. Veenman & Zonen, Wageningen, Nederland.
  4. ^ 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.