Reference for Sheviit 9:6

הַמְלַקֵּט עֲשָׂבִים לַחִים, עַד שֶׁיִּיבַשׁ הַמָּתוֹק. וְהַמְגַבֵּב בַּיָּבֵשׁ, עַד שֶׁתֵּרֵד רְבִיעָה שְׁנִיָּה. עֲלֵי קָנִים וַעֲלֵי גְפָנִים, עַד שֶׁיִּשְּׁרוּ מֵאֲבִיהֶן. וְהַמְגַבֵּב בַּיָּבֵשׁ, עַד שֶׁתֵּרֵד רְבִיעָה שְׁנִיָּה. רַבִּי עֲקִיבָא אוֹמֵר, בְּכֻלָּן עַד שֶׁתֵּרֵד רְבִיעָה שְׁנִיָּה:

One who picks fresh grasses, [may eat them] until their sweetness has dried up. One who gathers dry [plants], [may eat them] until the second seasonal rain falls. Reed leaves and grape leaves may be eaten until they fall from their parents; but one who gathers [them] dry, [may eat them] until the second seasonal rain falls. Rabbi Akiva says, all of them [may be eaten] until the second seasonal rain falls.

Jastrow

Jastrow