Astanga Hrudaya
तीक्ष्णो ग्ऱञ्जनको ग्राही पित्तिनां हितकृन्न सः।दीपनः सूरणो रुच्यः कफघ्नो विशदो लघुः॥११३॥
it is penetrating, water absorbent and not suitable to those who have pitta predominance. Surana (Yam) kindles digestion, improves taste, mitigates kapha is non-unctous, easily digestible and especially good for haemorrhoids;
english translation
tIkSNo gr2aJjanako grAhI pittinAM hitakRnna saH।dIpanaH sUraNo rucyaH kaphaghno vizado laghuH॥113॥
hk transliteration by Sanscript