|Chrysanthemum-public domain image.|
Chrysanthemums * or mums come in different species and colours.They are very pretty to look at and used for decorative purposes and also used to make a refreshing cup of tea ( C.indicum) in East Asia .
The uses of these blossoms don't end here- these beautiful flowers are more useful when dried and powdered.
Chrysanthemum cineriifolium and C.coccinium have potent pesticidal properties. The dried flower heads have a substance called Pyrethrum which is comparatively safe when compared to the other insect repelling chemicals.However the commercial versions are made more poisonous by reinforcing it with other chemicals.
* Chamanthy in Tamil ,Telugu,
Chandhra mallika in Hindi.