''Buddleja glomerata'' is a shrub

endemic Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsew ...

to the mountains of the

Karoo The Karoo ( ; from the Afrikaans borrowing of the South Khoekhoe !Orakobab or Khoemana word ''ǃ’Aukarob'' "Hardveld") is a semi-desert natural region of South Africa. No exact definition of what constitutes the Karoo is available, so its ext ...

desert in

South Africa South Africa, officially the Republic of South Africa (RSA), is the southernmost country in Africa. It is bounded to the south by of coastline that stretch along the South Atlantic and Indian Oceans; to the north by the neighbouring countri ...

, where it grows among boulders on dry hillsides. The species was first described and named by

Heinrich Wendland Heinrich Ludolph (Ludwig) Wendland (29 April 1791, in Hanover – 15 July 1869, in Teplice) was a botanist who authored a number of ''Acacia'' species. Heinrich Wendland was born on 29 April 1791 into a family well known in botany. His father Joha ...

in 1825.Bartling & Wendland. (1825), ''Beitr. zur Botanik'' 2:5. 1825. The shrub has a number of common names locally, the most popular being 'Karoo Sagewood'.

Description

''Buddleja glomerata'' typically grows to in height, with white-tomentose branchlets. The leaves are opposite, ovate or elliptic, long by wide, heavily lobed to form undulate margins; the petiole . Silver-grey on emergence, the leaves turn bluish-green with age. The

inflorescence An inflorescence is a group or cluster of flowers arranged on a stem that is composed of a main branch or a complicated arrangement of branches. Morphologically, it is the modified part of the shoot of seed plants where flowers are formed o ...

is a terminal

panicle A panicle is a much-branched inflorescence. (softcover ). Some authors distinguish it from a compound spike inflorescence, by requiring that the flowers (and fruit) be pedicellate (having a single stem per flower). The branches of a panicle are of ...

< in diameter, comprising congested

cymes An inflorescence is a group or cluster of flowers arranged on a stem that is composed of a main branch or a complicated arrangement of branches. Morphologically, it is the modified part of the shoot of seed plants where flowers are formed on ...

forming sub-globose heads of 10–20 faintly-scented yellow flowers, the yellow anthers protruding from the corollas.Leeuwenberg, A. J. M. (1979) ''The Loganiaceae of Africa XVIII Buddleja L. II, Revision of the African & Asiatic species''. H. Veenman & Zonen, Wageningen, Nederland. In the UK, the flowers emerge in May, thence sporadically throughout the summer.

Cultivation

The shrub was introduced to commerce in the UK in the late 1990s, where it has proven hardy down to grown against a south-facing wall. Nick's Blog
The species is grown as part of the

NCCPG Plant Heritage, formerly known as the National Council for the Conservation of Plants and Gardens (NCCPG), is a botanical conservation organisation in the United Kingdom and a registered charity. It was founded in 1978 to combine the talents of b ...

national collection held by

Longstock Park Longstock Park is in the civil parish of Longstock in the Test Valley district of Hampshire, England, and forms part of the Leckford Estate (1520 ha.), wholly owned by the John Lewis Partnership. Description Formerly Longstock Manor, of med ...

Nursery, near Stockbridge,

Hampshire Hampshire (, ; abbreviated to Hants) is a ceremonial county, ceremonial and non-metropolitan county, non-metropolitan counties of England, county in western South East England on the coast of the English Channel. Home to two major English citi ...

.Moore, P. (2012). ''Buddleja List 2011-2012 Longstock Park Nursery''. Longstock Park, UK. Hardiness:

USDA The United States Department of Agriculture (USDA) is the federal executive department responsible for developing and executing federal laws related to farming, forestry, rural economic development, and food. It aims to meet the needs of com ...

zones 8–9.Stuart, D. (2006). ''Buddlejas''. Plant Collector Guide. Timber Press, Oregon, USA.

References

{{Taxonbar, from=Q4984647 glomerata Flora of South Africa Flora of Africa