桔梗科,一年生蔓性草本。高約10-25公分,莖直立。線形至披針形葉,互生,疏鋸齒。花單生葉腋,或總狀花序頂生,花梗細長,花色多樣,花冠有二唇瓣,下唇瓣較大,有3裂片,喉部白色帶斑點,上唇裂片2,直立狀,狹細。蒴果,熟成後頂端2裂,內有黃褐色扁長形種子25-30粒。 , 圖二:植株
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