Buddleja curviflora

Buddleja curviflora
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Asterids
Order: Lamiales
Family: Buddlejaceae
Genus: Buddleja
Species: B. curviflora
Binomial name
Buddleja curviflora
Hook. & Arn.
Synonyms
  • Buddleja formosana Hatusima
  • Buddleja venenifera Makino
  • Buddleja curviflora var. venenifera (Makino) Makino

Buddleja curviflora is a deciduous shrub native to southern Japan and Taiwan, where it grows in thickets on stony slopes at elevations of 100300 m. B. curviflora was named and described Hooker & Arnott in 1838.[1] Plants in Taiwan have been described as a separate species Buddleja formosana and assessed as Critically Endangered by IUCN, but the distinction is not recognized by Li and Leeuwenberg, who sank formosana as a synonym. [2]

Description

B. curviflora grows to < 2 m in height in the wild, its branches subquadrangular in section, and glabrescent. The leaves are opposite, lanceolate to ovate, 515 cm long by 26 cm wide, the upper surface glabrous, the underside almost glaucous. The purple flowers are borne on slender, terminal, one-sided panicles 515 cm long; flowering occurs in June and July.[1] Ploidy 2n = 38 (diploid). [3]

Cultivation

The shrub is rare in cultivation. In the UK, specimens are grown at the Royal Botanic Garden Edinburgh, the Royal Horticultural Society garden at Wisley, and at Longstock Park Nursery, NCCPG national collection holder, near Stockbridge, Hampshire. Hardiness: USDA zones 89. [1]

References

  1. 1 2 3 Stuart, D. (2006). Buddlejas. 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. 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.
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