Actually, it is very easy to memorize, because:
"palm tree" in Sanskrit is ताल (tAla) and
"plough" is हल (hala).
"Shree Brahma-Purana", Chapter 208:
इत्य् उक्त्वा क्रोधरक्ताक्षस् तालाङ्को ऽधोमुखं हलम् /
प्राकारवप्रे विन्यस्य चकर्ष मुशलायुधः // २०८.३२ //
आघूर्णितं तत् सहसा ततो वै हस्तिनापुरम् /
दृष्ट्वा संक्षुब्धहृदयाश् चुक्रुशुः सर्वकौरवाः // २०८.३३ //
ity uktvA krodharaktAkShas tAlA~Nko .adhomukhaM halam /
prAkAravapre vinyasya chakarSha mushalAyudhaH // 208.32 //
AghUrNitaM tat sahasA tato vai hastinApuram /
dRRiShTvA saMkShubdhahRRidayAsh chukrushuH sarvakauravAH // 208.33 //
After saying this, Balarama, whose emblem was a palm tree and whose weapon was ploughshare, placed it with its face downwards on the top of the city outer wall and pulled.
Suddenly, the city of Hastinapura rolled. On seeing it the Kauravas were agitated in their hearts.
