Ashtangasamgraha 12.44

12.44

rase pāke ca kaṭukaṃ kaphaghnaṃ maricaṃ laghu |

śleṣmalā svādu śītārdrā gurvīṃ snigdhā ca pippalī ||

mṛdu vyapetarājīkaṃ nābhyāṃ spṛṣṭaṃ ca sarpati ||

Black pepper is pungent in taste and post-digestive effect, destroys kapha, and is light.
Pippalī, when fresh, increases śleṣman, is sweet, cool, heavy, and unctuous;
it is soft, devoid of stripes, and when touched at the navel, it moves about.