More information: Liangliang He et al, GRAS transcription factor PINNATE-LIKE PENTAFOLIATA2 controls compound leaf morphogenesis in Medicago truncatula, The Plant Cell (2024). DOI: 10.1093/plcell ...

It is smooth, has light grey trunk, slightly barrel-shaped when young, reaches a height of 25 metres and is crowned by huge, pinnate leaves. Its majestic appearance makes it particularly suitable ...

Identifying features include: typically grows 2-7 feet tall leaves are alternate with deeply pinnate segments and spiny teeth along leaf margins flowers are purple, disk-shaped, and covered in spines ...