monostichous adjective. 
[mǝ'nɒstɪkǝs, mɒnǝ(ʊ)'stʌɪkǝs] M19.[from Greek monostikhos (see MONOSTICH noun) + -OUS.](Having parts) arranged in or consisting of a single layer or row; 
Botany arranged in a single vertical row. 
 [TahlilGaran] English Dictionary ▲