麦角 is read as ばっかく (bakkaku) and means ergot.
ばっかく
bakkaku
ばっかくきん
ergot fungus (Claviceps purpurea)
むぎ
wheat
むぎばたけ
wheat field
むぎちゃ
barley tea
むぎわらざいく
straw work
むぎた
rice field used to grow wheat
むぎさく
wheat raising
すみ
downstage right (on a noh stage)
たかく
many-sided
さんかく
triangle
かど
(street) corner
ほうがく
direction