Biology:Buddleja brachystachya

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Short description: Species of plant

Buddleja brachystachya
Scientific classification edit
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Lamiales
Family: Scrophulariaceae
Genus: Buddleja
Species:
B. brachystachya
Binomial name
Buddleja brachystachya
Diels.
Synonyms
  • Buddleja nana W. W. Sm.
  • Buddleja purdomii W. W. Sm.

Buddleja brachystachya is a small shrub endemic to the Yunnan, Sichuan and Gansu provinces of China , where it grows on open, rocky, often dry, places at altitudes of 2,000–2,400 m. It was first described and named by Diels in 1912.[1]

Description

Buddleja brachystachya grows to 0.3–0.9 m in height, with subquadrangular to subterete, densely stellate-tomentose branchlets. The small, opposite leaves have elliptic blades, 1–3.5 cm long by 0.5–1.7 cm wide, acute or obtuse at the apex, cuneate or decurrent at the base, the margins entire. The lavender inflorescences are small, thyrsoid, and often few-flowered, 1.5–3 cm long by 1.5–2.5 cm wide, the corollas 11–18 mm long.[2] Ploidy 2n = 38 (diploid).[3]

Cultivation

The species is uncommon in cultivation. Hardiness: USDA zone 10.[4]

References

  1. Diels, F. L. E. (1912). Notes Roy. Bot. Gard. Edinb. 5: 249. 1912.
  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. 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.
  4. Stuart, D. (2006). Buddlejas. Plant Collector Guide. Timber Press, Oregon, USA. ISBN:978-0-88192-688-0
  • 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

Wikidata ☰ Q4984426 entry