pongamia pinnata or karanja tree with flowers

euphorbia serpens species common matted sandmat native south america found continents introduced herb forming prostrate stems root nodes stem contact oval leaves occur oppositely arranged centimeter long inflorescence cyathium scalloped petal-like appendages surrounding actual flowers red nectar appendage female flower fruit lobed spherical capsule pongamia pinnata tree pea family fabaceae eastern tropical asia australia pacific islands sole synonym millettia names indian beech karanja pongame oiltree