Mishnayos Sheviis Perek 9 Mishnah 6

המלקט עשבים לחים – he eats them [in the Seventh Year] without removal until the moistness of the land dries up that sweetens the produce and fruit; from then and onward, he is liable to remove them from the house.

המנגב ביבש – the person who gathers dry grasses, eats them without removal [from the house].

עד שתרד רביעה שניה – which in an average/intermediate year is the twenty-third of Mar Heshvan; from then on, he is required to remove them [from the hosue].

מגבב (gathers dry plants/leaves) – the Aramaic translation of (Exodus 5:12): “[Then the people scattered throughout the land of Egypt] to gather stubble for straw,” for rakings.

רביעה – because the rain fructifies the ground and bears living brood like this male that copulates the female. Another interpretation: that it sprinkles the dust and causes it to lie down. The Aramaic translation of (Genesis 29:2) (the Biblical text referred to does not have the requested verb in the singular tense – but it does appear in the plural): “three flocks of sheep were lying there beside it,” -lying.

ועלי גפנים – moist [leaves of vines]. They eat them all the while that the are found in their early stage of ripening, meaning to say, when they are attached to the tree.

שישורו – that they will fall.

והמגבב ביבש – owners of dry reeds and vines, he consumes them until the second rainfall occurs, and after that he should remove it [from the house].

בכולן – whether grasses or reeds and vines whether moist or dry, but the Halakha is not according to Rabbi Shimon.