Tosefta for Maasrot 4:5
הַמְקַלֵּף שְׂעוֹרִים, מְקַלֵּף אַחַת אַחַת וְאוֹכֵל. וְאִם קִלֵּף וְנָתַן לְתוֹךְ יָדוֹ, חַיָּב. הַמּוֹלֵל מְלִילוֹת שֶׁל חִטִּים, מְנַפֶּה מִיָּד לְיָד וְאוֹכֵל. וְאִם נִפָּה וְנָתַן לְתוֹךְ חֵיקוֹ, חַיָּב. כֻּסְבָּר שֶׁזְּרָעָהּ לְזֶרַע, יַרְקָהּ פָּטוּר. זְרָעָהּ לְיָרָק, מִתְעַשֶּׂרֶת זֶרַע וְיָרָק. רַבִּי אֱלִיעֶזֶר אוֹמֵר, הַשֶּׁבֶת מִתְעַשֶּׂרֶת זֶרַע וְיָרָק וְזֵירִין. וַחֲכָמִים אוֹמְרִים, אֵינוֹ מִתְעַשֵּׂר זֶרַע וְיָרָק אֶלָּא הַשְּׁחָלִים וְהַגַּרְגִּיר בִּלְבָד:
One who husks barley may husk one at a time and eat [without tithing], but if he husked and put them into his hand, he is required [to tithe]. One who rubs [ears of] wheat may blow [the wheat] from hand to hand [to remove the chaff] and eat, but if he blows and puts the grain in his lap, he is required [to tithe]. Coriander that was sown for the seed, its greenery is exempt [from tithes]. If he sowed it for the greenery, both the seed and the greenery must be tithed. Rabbi Eliezer says: dill must be tithed from seed and greenery and pods. But the Sages say: he need not tithe from both seed and greenery except in the case of cress and <i>Eruca</i>.