Buddleja stachyoides

Buddleja stachyoides is the most widespread member of the genus in South America, endemic to woodland edges, roadsides and riversides in Argentina, Brazil, Bolivia, Paraguay, and Uruguay.[1] Introduced to the UK as B. australis in 1822, when the Royal Botanic Garden Edinburgh grew it from seed received from a Russian source,[2] the plant was described and renamed B. stachyoides by Chamisso & von Schlechtendal in 1827.[3]

Buddleja stachyoides
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Lamiales
Family: Scrophulariaceae
Genus: Buddleja
Species:
B. stachyoides
Binomial name
Buddleja stachyoides
Synonyms
  • Buddleja alata Larañaga
  • Buddleja albotomentosa Jacq. ex Spreng.
  • Buddleja australis Vell.
  • Buddleja brasiliensis Jacq. ex Spreng.
  • Buddleja brasiliensis Jacq. ex Spreng. subsp. stachyoides (Cham. & Schltdl.) E. M. Norman & L. B. Sm.
  • Buddleja brasiliensis Jacq. ex Spreng. var. glazoviana Gilg
  • Buddleja neemda Link
  • Buddleja otophylla Hassk.

Description

Buddleja stachyoides is a shrub 1–3.5 m high. Unlike most South American members of the genus which are cryptically dioecious, stachyoides is hermaphroditic, bearing perfect flowers. The young branches are quadrangular, occasionally winged, and covered with a greyish tomentum, bearing leaves subsessile or with a petiole <1 cm, ovate or oblong-lanceolate, the blade 5–20 cm long by 3–8 cm wide, membranaceous, glabrescent above, and tomentose below. The yellow to pale orange inflorescence is unbranched, 10– 20 cm long, comprising 4–20 pairs of axillary cymes; the tubular corolla is 5–7 mm long. Ploidy: 2n = 38.[1]

Cultivation

Buddleja stachyoides remains cultivated (under glass) in the UK at the Royal Botanic Gardens Kew, the Cambridge Botanic Garden, and as part of the NCCPG national collection at Longstock Park Nursery, near Stockbridge, Hampshire. Elsewhere, B. stachyoides has naturalized in Australia along a creek bank at Ashgrove near Brisbane,[1] and on the islands of St Helena, and Réunion.[2] Hardiness: USDA zones 9–11.[2]

References
  1. Norman, E. M. (2000). Buddlejaceae. Flora Neotropica 81. New York Botanical Garden, USA
  2. Stuart, D. (2006). Buddlejas. RHS Plant Collectors Guide. Timber Press, Oregon. ISBN 978-0-88192-688-0.
  3. Cham. & Schldtl., (1827). Linnaea 2: 597, 1827.
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.