Pitṛ-Śrāddha Vidhi: Rājata-dāna, Kṛṣṇājina, and Vedi/Garta Construction
Ancestral Rite Protocols
नीपो विभीतकश्चैव श्राद्धकर्मणि गर्हिताः / चिरबिल्वस्तथा कोलस्तिदुकः श्राद्धकर्मणि
nīpo vibhītakaścaiva śrāddhakarmaṇi garhitāḥ / cirabilvastathā kolastidukaḥ śrāddhakarmaṇi
In the śrāddha rite, the nīpa and vibhītaka trees are deemed blameworthy; likewise cirabilva, kola, and tiduka are also forbidden for śrāddha.