Kloyes first appear in Vayikro in reference to the omer offering (2:14)
וְאִם־תַּקְרִ֛יב מִנְחַ֥ת בִּכּוּרִ֖ים לַד’ אָבִ֞יב קָל֤וּי בָּאֵשׁ֙ גֶּ֣רֶשׂ כַּרְמֶ֔ל תַּקְרִ֕יב אֵ֖ת מִנְחַ֥ת בִּכּוּרֶֽיךָ׃
And if thou offer a meal offering of thy firstfruits to the Lord, thou shalt offer for the meal offering of thy firstfruits ears of corn dried by the fire, corn beaten out of fresh ears.
It appears again soon after (23:14)
וְלֶחֶם֩ וְקָלִ֨י וְכַרְמֶ֜ל לֹ֣א תֹֽאכְל֗וּ עַד־עֶ֙צֶם֙ הַיּ֣וֹם הַזֶּ֔ה עַ֚ד הֲבִ֣יאֲכֶ֔ם אֶת־קָרְבַּ֖ן אֱלֹהֵיכֶ֑ם חֻקַּ֤ת עוֹלָם֙ לְדֹרֹ֣תֵיכֶ֔ם בְּכֹ֖ל מֹשְׁבֹֽתֵיכֶֽם׃
And you shall eat neither bread, nor parched corn, nor green ears, until that very day, until you have brought an offering to your God: it shall be a statute for ever throughout your generations in all your dwellings.