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Table 6 Use diversity indices of 20 high ranking medicinal plant species in the entire data set

From: An ethnobotanical study of medicinal plants in Sheka Zone of Southern Nations Nationalities and Peoples Regional State, Ethiopia

Species

Family

aUVs

UVi

lnUVi

Abs(lnUVi)

UVilnUVi

Syzygium guineense subsp. afromontana

Myrtaceae

43

0.020

− 3.937

3.937

0.077

Syzygium guineense subsp.marocarpa

Myrtaceae

43

0.020

− 3.937

3.937

0.077

Croton macrostachyus

Euphorbiaceae

41

0.019

− 3.985

3.985

0.074

Manilkara butugi

Sapotaceae

37

0.017

− 4.088

4.088

0.069

Ekebergia capensis

Meliaceae

34

0.015

− 4.172

4.172

0.064

Ilex mitis

Aquifoliaceae

34

0.015

− 4.172

4.172

0.064

Olea welwitschii

Oleaceae

34

0.015

− 4.172

4.172

0.064

Arundinaria alpina

Poaceae

33

0.015

− 4.202

4.202

0.063

Prunus africana

Rosaceae

33

0.015

− 4.202

4.202

0.063

Hallea rubrostipulata

Rubiaceae

30

0.014

− 4.297

4.297

0.058

Millettia ferruginea

Fabaceae

30

0.014

− 4.297

4.297

0.058

Schefflera abyssinica

Araliaceae

30

0.014

− 4.297

4.297

0.058

Cordia africana

Boraginaceae

29

0.013

− 4.331

4.331

0.057

Schefflera volkensii

Araliaceae

29

0.013

− 4.331

4.331

0.057

Hagenia abyssinica

Rosaceae

27

0.012

− 4.403

4.403

0.054

Milicia excelsa

Moraceae

27

0.012

− 4.403

4.403

0.054

Ozoroa insignis

Anacardiaceae

26

0.012

− 4.440

4.440

0.052

Ozoroa pulcherrima

Anacardiaceae

26

0.012

− 4.440

4.440

0.052

Podocarpus falcatus

Podocarpaceae

26

0.012

− 4.440

4.440

0.052

Trichillia dregeana

Meliaceae

26

0.012

− 4.440

4.440

0.052

\( \mathrm{UVDs}=\sum \limits_{i=1}^S UVi\ln UVi=5.155 \)

  1. UVDs use value diversity, UVs a simple sum of all known use for each species, UVi the relative use value of species i, lnUVi the natural logarithm of the relative use value of species i, Abs(lnUVi) the absolute value of lnUVi, S the total number of medicinal plant species in the entire dataset
  2. aOnly species with total use value of all known use categories > 26 are indicated (S = 266, use categories = 14)