COCKSPUR
cockspur, Pisonia aculeata
(noun) small spiny West Indian tree
Source: WordNet® 3.1
Etymology
Noun
cockspur (plural cockspurs)
A blade for tying to the foot of a gamecock.
Synonym: gaff
A kind of grass (Echinochloa crus-galli).
Synonyms: barnyard grass, barnyard millet, cockspur grass, common barnyard grass, Japanese millet, water grass
A kind of hawthorn (Crataegus crus-galli).
Synonyms: cockspur hawthorn, cockspur thorn
Source: Wiktionary
Cock"spur, n. (Bot.)
Definition: A variety of Cratægus, or hawthorn (C. Crus-galli), having
long, straight thorns; -- called also Cockspur thorn.
Source: Webster’s Unabridged Dictionary 1913 Edition