直ちょく立りつ茎けいちょくりつけいMeanings1nounerect stemBotanical term for a stem that grows upright, as opposed to creeping or climbing.この植しょく物ぶつは直ちょく立りつ茎けいを持もち、高たかさ1メートルまで成せい長ちょうする。This plant has an erect stem and grows up to one meter tall.