शीतोदकीयं पद्माभं कालस्निग्धं वा ॥ कZ_०२.११.५३ ॥
śītodakīyaṃ padmābhaṃ kālasnigdhaṃ vā
‘Śītodakīya’ a l’apparence du lotus, ou bien il est sombre et luisant.
It signals a recognizable sheen/appearance associated with quality; such cues support rapid field verification without specialized instruments.