Original Research

Height, branch-free bole length and bark thickness for six tree species used medicinally in South Africa

V.L. Williams, E.T.F. Witkowski, K. Balkwill
Koedoe | Vol 48, No 1 | a165 | DOI: https://doi.org/10.4102/koedoe.v48i1.165 | © 2005 V.L. Williams, E.T.F. Witkowski, K. Balkwill | This work is licensed under CC Attribution 4.0
Submitted: 30 June 2005 | Published: 30 June 2005

About the author(s)

V.L. Williams, University of the Witwatersrand, South Africa
E.T.F. Witkowski, University of the Witwatersrand, South Africa
K. Balkwill, University of the Witwatersrand, South Africa

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Abstract

Information on tree stem characteristics and dimensions is sparse, especially information that would enhance conservation and trade monitoring efforts for species where bark is harvested for medicinal use. Several tree stem characteristics were investigated during a study on the relationship between bark thickness and stem diameter, and this paper presents the mean height, branch-free bole length and wet and oven-dry bark thickness per stem diameter-class for six species. Additionally, prediction tables are constructed that allow bark thickness to be determined from diameter at breast height.

Keywords

Acacia xanthophloea; Albizia adianthifolia; Balanites maughamir; bark; diameter at breast height; Elaeodendron transvaalense; medicinal plants; Rhus chirindensis; Warburgia salutaris.

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Crossref Citations

1. Relationship between bark thickness and diameter at breast height for six tree species used medicinally in South Africa
V.L. Williams, E.T.F. Witkowski, K. Balkwill
South African Journal of Botany  vol: 73  issue: 3  first page: 449  year: 2007  
doi: 10.1016/j.sajb.2007.04.001