Garudapurana 1.156.38

1.156.38

śleṣmolbaṇā mahāmūlā ghanā mandarujaḥ sitāḥ /
utsannopacitasnigdhastabdhavṛttagurusthirāḥ //

Those dominated by phlegm have deep roots, are dense, cause dull pain, and are white; / elevated, fleshy, unctuous, rigid, round, heavy, and firm;