Botanical name : Cinnamomum verum Presl. (C. Zeylanicum B.l)
Family : Lauraceae
SANSKRIT SYNONYMS
Tvak, Twak, Cocham, Darusita, Tamala
AYURVEDIC PROPERTIES
Rasa    : Madhura, Tikta
Guna   : Lakhu, Snigdha
Virya   : Ushna
Vipaka : Katu
PLANT NAME IN DIFFERENT LANGUAGES
English  : Cinnamon
Hindi  : Dalchini, Daruchini
Malayalam : Ilavangam, Elavangam, Karuva, Vayana
Distribution – Growing naturally in dense forests of Western Ghats, also cultivated.
PLANT DESCRIPTION
A small to medium sized evergreen tree grows up to 20 meters in height. Leaves simple, opposite, ovate-elliptic, acuminate, shiny, with prominent veins. Flowers axillary in sub-terminal cymes, fruits ovoid berries, dark purple when ripe, containing single seed. 
MEDICINAL PROPERTIES
Plant pacifies vitiated vata, kapha, pain, arthritis, cough, asthma, headache, dental caries, cardiac disorders, diarrhea, vomiting, nausea, flatulence, fever, and discoloration on face.
Useful part : Bark, Oil.