Does the fact that Jesus in Matthew 13 refers to the mustard seed as "the smallest of all seeds" even though..?

While some may argue that a mustard grain is not “the tiniest” of all seeds, orchid seeds being smaller, and that it does not actually become “a tree,” it must be borne in mind that Jesus was speaking in terms familiar to his audience. As far as Jesus’ listeners were concerned, the mustard grain was indeed among the tiniest seeds planted, and it is noteworthy that the Arabs designate as “trees” plants smaller than the mustard.