וַאֲשֶׁ֣ר יַשְׁמִ֗יעוּ וְיַעֲבִ֨ירוּ ק֥וֹל בְּכָל־עָרֵיהֶם֮ וּבִירוּשָׁלִַ֣ם לֵאמֹר֒ צְא֣וּ הָהָ֗ר וְהָבִ֙יאוּ֙ עֲלֵי־זַ֙יִת֙ וַעֲלֵי־עֵ֣ץ שֶׁ֔מֶן וַעֲלֵ֤י הֲדַס֙ וַעֲלֵ֣י תְמָרִ֔ים וַעֲלֵ֖י עֵ֣ץ עָבֹ֑ת לַעֲשֹׂ֥ת סֻכֹּ֖ת כַּכָּתֽוּב׃ (פ)
and that they should publish and proclaim in all their cities, and in Jerusalem, saying: ‘Go forth unto the mount, and fetch olive branches, and branches of wild olive, and myrtle branches, and palm branches, and branches of thick trees, to make booths, as it is written.’
Rashi on Nehemiah
And that they should announce And they commanded that they announce that they celebrate the Festival of Sukkoth, and so it is customary for Scripture to speak in this manner, like (I Sam. 9: 27): “Tell the servant and he will go ahead of us.”
Rashi on Nehemiah
myrtle leaves It is explained in Tractate Succah (12a) that this is a wild myrtle which is unfit for the lulav and only fit to make a sukkah.