| Subject | English | Latin |
| nat.sc., agric. | apple and thorn fruit weevil | Rhynchites aequatus |
| nat.sc., agric. | apple and thorn fruit weevil | Coenorrhinus aequatus |
| entomol. | apple and thorn skeletonizer | Eutromula pariana |
| biol. | apple-and-thorn skeletonizer | Simethis or Hemerophila |
| entomol. | apple-and-thorn skeletonizer | Choreutis pariana |
| nat.sc., agric. | apple-and-thorn skeletonizer | Antophila pariana |
| nat.sc., agric. | apple-and-thorn skeletonizer | Simaethis pariana |
| biol. | apple-and-thorn skeletonizer | Anthophila pariana (Clerck) |
| entomol. | August thorn | Staurppus quercinaria |
| ornit. | black-backed thorn-billed hummingbird | Ramphomieron dorsale |
| biol. | box-thorn | Lycium chinensis Mill. |
| biol. | box-thorn | Lycium chinense Mill. |
| biol. | box-thorn | Lycium L. |
| biol. | buck thorn plantain | Plantago lanceolata L. |
| biol. | camel's-thorn | Alhagi pseudalhagi Dasv. |
| biol. | camel's-thorn | Alhagi camelorum Fisch. |
| entomol. | canary-shouldered thorn | Staurppus alniaria |
| entomol. | canary-shouldered thorn | Staurppus |
| biol. | Christ's thorn | Paliurus spinachristi Mill. |
| biol. | Christ's thorn | Paederia trinervatus Moench. |
| agric. | Christ's thorn | Copernicia prunifera |
| agric. | Christ's thorn | Copernicia cerifera |
| biol. | Christ's thorn | Paederia aculeatus Lam. |
| biol. | Christ's thorn | Paederia australis Gaertn. |
| biol. | Christ's thorn | Paliurus spina-christi Mill. |
| nat.res. | common thorn-apple | Datura stramonium L. |
| biol. | crown of thorns | Euphorbia splendens Bojer. |
| environ., nat.res. | crown-of-thorns starfish | Acanthaster planci |
| biol. | desert-thorn shrub | Hippophaë yhamnoides L. |
| biol. | downy mildew of box-thorn | Peronospora lycii Ling et M. C. Tai |
| entomol. | early thorn moth | Cosmotriche lunigera |
| entomol. | early thorn moth | Selenia bilunaria |
| bot. | Egyptian thorn | A. vera |
| bot. | Egyptian thorn | Acacia arabica |
| entomol. | elm thorn | Staurppus subsignarius |
| bot. | evergreen thorn | Crataegus pyracantha |
| biol. | evergreen thorn | Cornus macrophylla Wall. |
| biol. | evergreen thorn | Cornus L. |
| biol. | everlasting thorn | Pyracantha coccinea Roem. |
| life.sc., agric. | feathered thorn moth | Colotois pennaria L. |
| trad.med. | gleditsia thorn | Gleditsiae Spina |
| biol. | Jerusalem thorn | Parkinsonia L. |
| bot. | Jerusalem thorn | Barkinsonia aculeata |
| food.ind. | Jerusalem thorn | Parkinsonia aculeata |
| biol. | Jerusalem thorn | Parkinsonia aculeata L. |
| biol. | Jerusalem thorn | Paliurus spinachristi Mill. |
| nat.sc., agric. | kangaroo thorn | Acacia armata |
| entomol. | large thorn | Staurppus autumnaria |
| biol. | leaf spot of box-thorn | Cercospora chengtuensis Tai |
| entomol. | lilac thorn moth | Phalaena syringaria |
| entomol. | lunas thorn moth | Selenia lunaria |
| biol. | mysore thorn | Caesalpinia sepiaria Roxb. |
| biol. | narrowleaf fire thorn | Pyracantha angustifolia Schneid. |
| entomol. | orange thorn moth | Angerona prunaria |
| entomol. | purple thorn moth | Selenia tetralunaria |
| ornit. | purple-backed thorn-billed hummingbird | Ramphomicron microrhynchum |
| life.sc., environ., agric. | sallow thorn | Hippophae rhamnoides |
| agric. | sallow-thorn berry | Hippophae rhamnoides |
| entomol. | scalloped hazel thorn moth | Gonodontis bidentata |
| biol. | shallow thorn | Hippophae rhamnoides L. |
| biol. | shallow thorn | Hippophae L. |
| bot. | sloe thorn | Prunus spinosa |
| entomol. | sulphur thorn | Opisthograptis luteolata |
| nat.res. | thorn-apple | Datura stramonium |
| biol. | thorn apple | Datura L. |
| bot. | thorn-apple | Datura stramonium L. |
| bot. | thorn-apple | Datura tatula L. (var. tatula) |
| bot. | thorn-apple | Datura stramonium f. tatula L. A. Blytt |
| biol. | thorn apple | Datura metel L. |
| nat.res. | thorn-apple | Datura Stramonium Lin. |
| nat.res. | thorn-apple | Datura stramonium L |
| biol. | thorn apple | Datura stramonium L. |
| biol. | thorn apple datura | Datura candida sp. |
| food.ind. | thorn-back spider crab | Maia squinado |
| food.ind. | thorn-back spider crab | Maja squinado |
| ornit. | thorn-bush barred wren warbler | Camaroptera fasciolata |
| entomol. | thorn butterfly | Aporia crataegi |
| med. | thorn-like process | spina |
| life.sc., fish.farm. | thorn sturgeon | Acipenser nudiventris |
| ornit. | thorn-tailed rayadito | Aphrastura spinicauda |
| trad.med. | uncaria stem and thorn | Uncariae Ramulus cum Unco |
| nat.sc., agric. | white thorn | Crataegus oxyacantha |
| nat.res. | white thorn | CrataegusL.Spec. |
| nat.sc., agric. | white thorn | Crataegus monogyna |