And [banana] trees layered [with fruit]

and among Talh Mandud.

refers to large thorny shrub that used to grow in the area of Hijaz (Western Arabia).

Mujahid said that
مَّنضُودٍ
(Mandud) means:

Its fruits are piled on top of each other. Allah is reminding the Quraysh of these kinds of trees, since they used to like the shade that the Talh and Sidr provided for them.

Ibn Abi Hatim recorded that Abu Sa`id said that
وَطَلْحٍ مَّنضُودٍ
(Talh Mandud) means:

The banana tree.

And he (Ibn Abi Hatim) said,

Similar is reported from Ibn Abbas, Abu Hurayrah, Al-Hasan, `Ikrimah, Qasamah bin Zuhayr, Qatadah and Abu Hazrah.

Mujahid and Ibn Zayd said similalry, Ibn Zayd added,

The people of Yemen call the banana tree, Talh.

Ibn Jarir mentioned no other explanation for Talh.

Allah said,

وَظِلٍّ مَّمْدُودٍ