Orthosiphon aristatus var. velteri Suddee & A.J.Paton

First published in Kew Bull. 60: 23 (2005)
This variety is accepted
The native range of this variety is Vietnam. It is a subshrub or shrub and grows primarily in the wet tropical biome.

Descriptions

Suddee, S., A. J. Paton, & Parnell, J. (2005). Taxonomic Revision of Tribe Ocimeae Dumort. (Lamiaceae) in Continental South East Asia III. Ociminae. Kew Bulletin, 60(1), 3-75. Retrieved from http://www.jstor.org/stable/4110885

Type
Vietnam, Khanh Hoa, Nha Trang, 6 April 1922, Poilane 2905 (holotypus P!).
Morphology Stem
Stems much branched, old stems whitish-grey
Morphology Leaves
Leaves sessile or subsessile, ovate, 7 - 20 x 7 - 15 mm, apex acute, base truncate or shortly cuneate
Morphology Reproductive morphology Inflorescences Bracts
Bracts persistent, very short, wider than long, apex crenate, truncate or apiculate
Morphology Reproductive morphology Flowers Calyx
Calyx 3 - 4 mm long at anthesis, 7 - 8 mm long in fruit
Morphology Reproductive morphology Flowers Corolla
Corolla blue, 15 - 20 mm long; tube 10 - 12 mm long
Morphology Reproductive morphology Fruits
Nutlets ellipsoid, 2 mm long, minutely reticulate.
Note
This variety is distinguished by its smaller size, the sessile or subsessile, ovate and usually truncate leaves, and the truncate bracts.
Phenology
Flowering and fruiting December - April.
Distribution
Endemic to Vietnam.
Conservation
Known from 4 localities and last collected in 1936. Growing in coastal Vietnam near highly populated areas. Estimated extent of occurrence is around 600 km2. EN B1+2 ab(i,ii).
Vernacular
Vietnamese: Trucquan Velter.
[KBu]

Sources

  • Kew Backbone Distributions

    • The International Plant Names Index and World Checklist of Vascular Plants 2024. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
    • © Copyright 2023 World Checklist of Vascular Plants. http://creativecommons.org/licenses/by/3.0
  • Kew Bulletin

    • Kew Bulletin
    • http://creativecommons.org/licenses/by-nc-sa/3.0
  • Kew Names and Taxonomic Backbone

    • The International Plant Names Index and World Checklist of Vascular Plants 2024. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
    • © Copyright 2023 International Plant Names Index and World Checklist of Vascular Plants. http://creativecommons.org/licenses/by/3.0