Saranak
Senior Member
Ah grazie Yorky,They are a type of nut with a similar consistency as sweet potato. The skin/shell is similar in texture to the skin of a black cardamom pod. The unofficial Thai name in "carabao" which translates as "buffalo" but the accepted official name is "krajup" - กระจับ (Tsinghara Nut) which is actually also Thai for a boxer's jockstrap. It is also known as "water caltrop".
I never see these before.
Sarana x