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Research, Policy and Practice

Table 1 Herbaceous species frequencies (%) in cleared and uncleared sites

From: Short-term responses of herbaceous vegetation to bush clearing in semi-arid rangelands of South Africa

Species Family Ecological status Life form Cleared Uncleared
Grasses
Aristida bipartita (Nees.) Trin & Rupr. Poaceae Increaser II P 7.3 4.5
Aristida congesta subsp. barbicollis Roen. & Schult. Poaceae Increaser II WP 2.2 0.8
Bothriochloa insculpta (Hochst.) ex A. Rich. Poaceae Increaser II WP 2.1 3.0
Brachiaria eruciformis (Sibth. & Sm.) Griseb. Poaceae Increaser II A 9.9 3.2
Chloris virgata Sw. Poaceae Increaser II A 1.0 0.0
Cynodon dactylon (L.) Pers. Poaceae Increaser II P 5.8 5.4
Digitaria eriantha (Stent.) Steud. Poaceae Decreaser P 5.6 7.8
Eragrostis lehmanniana (Nees.) Poaceae Increaser II P 14.5 16.0
Fingarhuthia africana Lehm. Poaceae Increaser II P 0.1 0.0
Heteropogon contortus (L.) Roen & Schult. Poaceae Increaser II P 0.3 0.0
Ischaemum afrum (JF Gmel.) Dandy Poaceae Increaser I P 1.2 2.9
Panicum coloratum L. Poaceae Decreaser P 6.2 0.7
Setaria sphacelata (Schumach.) Stapf & C.E. Hub Poaceae Decreaser P 0.7 0.0
Sporobolus ioclados (Trin.) Nees. Poaceae Increaser II WP 0.0 0.6
Sporobolus ludwigii Hochst. Poaceae Increaser II P 0.0 2.6
Sorghum versicolor Andersson. Poaceae Increaser II P 0.2 0.0
Tragus berteronianus (Schult.) Poaceae Increaser II A 4.0 1.5
Urochloa mosambicensis (Hack.) Dandy. Poaceae Increaser II A 0.9 0.5
Total     62.0 49.6
Forbs
Achyranthes aspera (L.) Griseb. Amaranthaceae Invader P 0.0 0.0
Amaranthus hybridus (L.) Timeroy. Amaranthaceae Invader P 0.8 0.7
Blepharis integrifolia (L.f.) Schinz. Acanthaceae Increaser II P 8.6 18.0
Chochorous asplenifolius (Burch.) Tiliaceae Invader P 5.6 5.2
Commelina benghalensis L. Commelinaceae Invader P 0.2 1.4
Corbichonia decumbens (Forssk.) Exell. Molluginaceae Increaser II A 5.5 8.8
Crabbea acaulis N.E.Br. Amaranthaceae Invader P 0.4 0.2
Crabbea angustifolia (Nees.) Nees. Amaranthaceae Invader P 1.4 0.1
Embrosia artemisiifolia L. Asteraceae Invader P 0.4 0.3
Gomphrena celosoides Mart. Amaranthaceae Invader P 0.0 0.0
Hibiscus trionum L. Loranthaceae Increaser II A 2.4 0.8
Ipomoea sinensis (Desr.) Choisy. Convolvulaceae Invader P 0.1 0.0
Jamesbrittennia aurantiaca Burch Scrophulariaceae Invader P 0.2 0.1
Justicia flava (Vahl.) Vahl. Acanthaceae Increaser II P 1.9 7.7
Kohautia virgata (Willd.) Bremek Acanthaceae Increaser II P 1.4 1.9
Kyphocarpa angustifolia (Moq.) Lopr. Amaranthaceae Invader A 0.7 0.2
Schkuhria pinnata (L.) Kuntze ex Thell. Asteraceae Invader P 1.5 0.2
Nidorella resedifolia DC. Acanthaceae Increaser II A 0.7 1.0
Spermacoce sinensis (Klotzsch.) Hiern. Rubiaceae Increaser II A 2.0 0.2
Phyllanthus maderaspatensis L. Phylanthaceae Invader A 1.5 1.0
Phyllanthus uniraria Phylanthaceae Invader A 0.7 0.5
Tribulus terrestris (L.) Oliv. Zygophyllaceae Invader A 0.1 0.1
Total     36.1 48.4
Legumes
Crotalaria heidmannii Schinz. Fabaceae Invader P 0.3 0.1
Senna italica Mill. Fabaceae Increaser II P 0.1 0.1
Sesbania bispinosa (Willd.) Pers. Fabaceae Increaser II B 0.2 0.1
Rhyncosia minima (L.) Pers. Fabaceae Increaser II P 0.5 0.5
Tephrosia purpurea (L.) Pers. Fabaceae Invader P 0.3 0.4
Total     1.4 1.2
Succulents
Kalanchoe brachyloba Welw. ex Britten Crassulaceae Invader P 0.3 0.4
Portulaca quadrifida L. Portulacaceae Invader A 0.1 0.0
Total     0.4 0.4
Others
Cyperus rotundus L. Cyperaceae Invader P 0.1 0.4
Rush spp. Hyacinthaceae 0.0 0.0
Total     0.1 0.4
  1. Life form: P perennial, A annual, B biennial, WP weak perennial