The mesophyll without calcium oxalate crystals. Stem anatomy . Xylem with fibre tracheids. Vessel end-walls simple. Reproductive type, pollination .
Fertile flowers hermaphrodite .
Inflorescence, floral, fruit and seed morphology . The terminal inflorescence unit cymose, or racemose. Inflorescences racemes or cymes, rarely umbellate. The floral irregularity involving the androecium. Free hypanthium present .