It appears to me that all fruits must have flowers and that is why it refers to eating from the fruits whish is the product of flowers, and Allah knows best.

Surat An-Nahl [verse 69] – Then eat from all the fruits and follow the …ways of your Lord laid down [for you].”There emerges from their bellies a drink, varying in colors, in which there is healing for people. Indeed in that is a sign for a people who givebees are belong from nectar type, nectar belong from flowers, then how bees taken food from fruits?