Buddleja caryopteridifolia

Buddleja caryopteridifolia W.W.Sm. is a small deciduous shrub discovered by George Forrest in 1913 on open ground at 3,000 m on the Tong Shan in the Yangtze valley, China. The species was described and named by William Wright Smith in 1914.[1]

Buddleja caryopteridifolia
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Lamiales
Family: Scrophulariaceae
Genus: Buddleja
Species:
B. caryopteridifolia
Binomial name
Buddleja caryopteridifolia
Synonyms
  • Buddleja crispa Benth.
  • Buddleja acosma C.Marquand
  • Buddleja eremophilia W.W.Sm.
  • Buddleja caryopteridifolia var. eremophilia W.W.Sm.
  • Buddleja caryopteridifolia var. fasciculiflora Z.Y.Zhang.
  • Buddleja caryopteridifolia var lanuginosa C.Marquand
  • Buddleja incompta W.W.Sm.

Resembling B. crispa, it was sunk under this name by Leeuwenberg [2], although it has recently been restored as a separate species [3]. It is likely that some specimens previously grown under this name at the Royal Botanic Gardens Edinburgh were actually Buddleja sterniana [4]. Although the name is known in horticulture [5], plants sold as this species are most likely B. x Wardii of an unknown origin.

Description

Buddleja caryopteridifolia grows to 2 m in height in the wild, and bears small upright terminal panicles with relatively few flowers in the autumn. The colour of the sweetly scented flowers is generally pink or lilac. The grey-green opposite foliage, is similar to smaller forms of B. crispa, the leaf blade ovate to triangular and with an irregular toothed margin, shortly petiolate [2]; the species is named for the foliage which can resemble that of several species of the genus Caryopteris.

Cultivation

Authentic examples of Buddleja caryopteridifolia are not currently in cultivation beyond China.

References
  1. Smith W.W. (1914). Notes Royal Botanic Gardens Edinburgh 8: 179.
  2. Leeuwenberg, A. J. M. (1979) The Loganiaceae of Africa XVIII Buddleja L. II, Revision of the African & Asiatic species. H. Veenman & Zonen, Wageningen, Nederland.
  3. X. Zhang, G. Chen, W. Gong, & Weibang Sun (2014) Buddleja caryopteridifolia (Scrophulariaceae), a species to be recognized based on morphology, floral scent, and AFLP data. Phytotaxa 161: 181-193.
  4. Cotton, A. D. (1947). Spring flowering buddleias. RHS Journal Vol. 72. 1947. pp 427 – 437. Royal Horticultural Society, London.
  5. Stuart, D. (2006). Buddlejas. RHS Plant Collector Guide. Timber Press, Oregon, USA. ISBN 978-0-88192-688-0
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