Responsa for Moed Katan 26:14

<br><br><big><strong>הדרן עלך מי שהפך:</strong></big><br><br>

and he is permitted rice,<span class="x" onmousemove="('comment',' Or hirse. V. Pes. 35a.');">²⁵</span> hilka, tragus and tisana.<span class="x" onmousemove="('comment',' V. Ned. 55b; Tosef. Ned. IV, 1, ZM. p. 279. 17-l8.');">²⁶</span> Now, this harmonizes well with the explanation that these [varieties] are so called because one [grain] is broken into two, three or four; it is Proper [to allow him to eat] because these [being now meal] no longer belong to the [category] of dagan [grain]; but according to him who says that hilka is [what we call] 'spelt', it is [still] properly [designated as] dagan! - This is a difficulty.

Teshuvot Maharam