Crossword solverSynonyms for spear thistle4 crossword answers for “spear thistle” (5,7), sorted by letter count.How many letters?All411214118111 letters 2boar thistle(4,7)bull thistle(4,7)14 letters 1Cirsium vulgare(7,7)18 letters 1Cirsium lanceolatum(7,11)