Mahabharata 1.1.66

युधिष्ठिरो धर्ममयो महाद्रुमः; स्कन्धोऽर्जुनो भीमसेनोऽस्य शाखाःमाद्रीसुतौ पुष्पफले समृद्धे; मूलं कृष्णो ब्रह्म च ब्राह्मणाश्च

yudhiṣṭhiro dharmamayo mahādrumaḥ; skandho'rjuno bhīmaseno'sya śākhāḥmādrīsutau puṣpaphale samṛddhe; mūlaṃ kṛṣṇo brahma ca brāhmaṇāśca

Our plain-language meaning of this verse is waiting for scholar review.