''Buddleja microstachya'' is a small shrub discovered in 2005 by Liu and Peng in

Yunnan Yunnan , () is a landlocked province in the southwest of the People's Republic of China. The province spans approximately and has a population of 48.3 million (as of 2018). The capital of the province is Kunming. The province borders the C ...

, China, growing at an elevation of 3,200 m in rocky terrain of the Yongde Mountains Nature Reserve.Liu, E.D. & Peng, H. (2006). ''Buddleja microstachya'' (Buddleajaceae), a new species from SW Yunnan, China. ''Ann. Bot. Fenn.'' 43: 463–465. First described in 2006, this putative species was not included in Leeuwenberg's study of Asiatic and African buddleja published in 1979.Leeuwenberg, A. J. M. (1979) ''The Loganiaceae of Africa XVIII Buddleja L. II, Revision of the African & Asiatic species''. H. Veenman & Zonen, Wageningen, Nederland.

Description

''Buddleja microstachya'' grows to 1–2 m in height in the wild. The branchlets are quadrangular and densely

tomentose Trichomes (); ) are fine outgrowths or appendages on plants, algae, lichens, and certain protists. They are of diverse structure and function. Examples are hairs, glandular hairs, scales, and papillae. A covering of any kind of hair on a pl ...

, the bark of old branches peeling. The leaves are

lanceolate The following is a list of terms which are used to describe leaf morphology in the description and taxonomy of plants. Leaves may be simple (a single leaf blade or lamina) or compound (with several leaflets). The edge of the leaf may be regular ...

, 1.5–5.0 cm long by 0.5–1.3 cm wide, tomentose above, densely tomentose below. The small terminal

inflorescence An inflorescence is a group or cluster of flowers arranged on a Plant stem, stem that is composed of a main branch or a complicated arrangement of branches. Morphology (biology), Morphologically, it is the modified part of the shoot of sperma ...

s consist of two or three flowers forming a cyme, several cymes forming a compact panicle. The corolla is lavender to white, cylindrical, 4–6 mm long and densely tomentose outside. ''Buddleja microstachya'' most closely resembles ''B. yunnanensis'' but differs in flower morphology and has a very isolated range, whereas ''B. yunnanensis'' has a wide distribution.

Cultivation

''Buddleja microstachya'' is not known to be in cultivation.

References

{{Taxonbar, from=Q4984685 microstachya Endemic flora of Yunnan