Answer: culms

AnswerCrossword Clue
CULMSHollow grass stems.
CULMSHollow stems of grasses.
CULMSHollow stems.
CULMSGrass or sedge stems
CULMSHollow grass stalks
culmsstem or stalk, esp. the jointed and usually hollow stem of grasses
culmscoal dust; slack
culmsto grow or develop into a culm
culmsanthracite, esp. of inferior grade