Brihat Samhita
करिणश्च हस्तिकर्णैरादेश्या वाजिनो अश्वकर्णेन । गावश्च पाटलाभिः कदलीभिरजऽविकं भवति ॥ २९-०७ ॥
The growth of Hasti Karṇa (castor oil tree) shows that elephants will thrive; that of Aśva Karṇa shows that horses will thrive; that of Pāṭala (trumpet flower) shows that cows will thrive and the growth of plantains shows that goats and sheep will thrive.
english translation
kariNazca hastikarNairAdezyA vAjino azvakarNena । gAvazca pATalAbhiH kadalIbhiraja'vikaM bhavati ॥ 29-07 ॥
hk transliteration by Sanscript