Stamens numerous , rarely few , free ; filaments linear or filiform ; anthers latrorse , introrse , or extrorse ; sometimes some sterile stamens becoming staminodes .

雄蕊多，有的很少，离生；花丝线形或者丝状；花药侧向纵裂的，向内，或者外向；有时一些不育的雄蕊成为退化雄蕊。