Related for Terumot 10:5

תִּלְתָּן שֶׁנָּפְלָה לְתוֹךְ הַבּוֹר שֶׁל יַיִן, בִּתְרוּמָה, בְּמַעֲשֵׂר שֵׁנִי, אִם יֵשׁ בַּזֶּרַע כְּדֵי לִתֵּן טַעַם, אֲבָל לֹא בָעֵץ. בִּשְׁבִיעִית וּבְכִלְאֵי הַכֶּרֶם וְהֶקְדֵּשׁ, אִם יֵשׁ בַּזֶּרַע וּבָעֵץ כְּדֵי לִתֵּן טָעַם:

Fenugreek that fell into a vat of wine, in [the case of] <i>Terumah</i> or in <i>Ma'aser Sheni</i> [second tithe, which must be eaten in Jerusalem], if there is in the seed enough to impart a flavor [even] without the stalk, [it is forbidden]. But if it was Sabbatical year produce or <i>Kilayim</i> [forbidden mix of two species] of the vineyard, or <i>Hekdesh</i> [consecrated donation], [it is forbidden] if there is in both seed and stalk enough to impart a flavor.

Tosefta Terumot