Noun
Any of certain plants with sharp hooked thorns found in southern and eastern Africa.
(South Africa) One of numerous acacias and mimosas and relatives.
Senegalia brevispica (wait-a-bit acacia)
Biancaea decapetala (syn. Caesalpinia decapetala, Mauritius thorn, Mysore thorn)
Ziziphus mucronata (buffalo thorn, Cape thorn)
The grapple plant (Uncarina leptocarpa).
Asparagus spp. of South Africa (Asparagus capensis, Asparagus suaveolens, Asparagus burchellii, Asparagus mariae, Asparagus flavicaulis, Asparagus spinescens)
Certain thorny shrubs and trees of North America
The common prickly ash (Zanthoxylum americanum).
The greenbrier (Smilax spp., esp. Smilax rotundifolia)
Any of various species of hawthorn (Crataegus crus-galli, etc.).
Mimosa aculeaticarpa (catclaw mimosa, wait-a-minute bush), of southwestern US and northern Mexico.
Senegalia greggii (catclaw acacia), of southwestern US and northern Mexico.
Source: en.wiktionary.orgwait a bit