introrse
/ɪnˈtrɔːs/adjective
1- Botany & Zoology turned inwards【植, 动】内向的, 向轴的。 EXTRORSE的反义词。
1.1
- (of anthers) releasing their pollen towards the centre of the flower（花药）内向的, 向心释放花粉的。
词源
mid 19th cent.: from Latin introrsus, from introversus 'turned inwards'.