Sesbania punicea
Shrub
16.4
19.2
16.7
AT, G, IOCB,
Sv
Riparian
Complete
Solanum mauritianum
Medium tree 13.5
16.8
24.5
G, IOCB, Sv Both
Negligible
Solanum
seaforthianum
Woody
climber
1.5
2.6
70.0
IOCB, Sv
Both
None
Solanum
sisymbriifolium
Shrub
2.0
4.5
135.0
G, IOCB
Both
Substantial
Tecoma stans
Shrub
2.9
7.1
143.9
IOCB, Sv
Both
Not determined
Trichocereus
spachianus
Succulent tree 2.9
6.3
115.8
G, NK, Sv
Dryland
None
Verbena bonariensis
Annual herb
3.0
13.6
360.3
G, IOCB
Riparian
None
Xanthium strumarium
Annual herb
7.6
11.9
57.0
G,, IOCB, Sv Both
None
a
Adapted from van Wilgen et al. (2008), Rouget et al. (2004) and Henderson and Wilson (2017)
b
Biomes: AT
Albany Thicket, G
Grassland, IOCB
Indian Ocean Coastal Belt, NK
Nama-Karoo, SK
Succulent Karoo, Sv
Savanna. Data on occupancy of QDGCs
(quarter degree grid cells) are from Henderson and Wilson (2017);
c
Estimates of the effectiveness of biological control are from Klein (2011) and Zachariades et al. (2017)
16 The Impact of Invasive Alien Plants on Rangelands in South Africa
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