(In full "marrow-stem kale") a variety of kale, a cross between kohlrabi and thousand-headed kale, with thick succulent stems grown for fodder; also called chou moellier.
Origin
1920s; earliest use found in Conquest.
Definition of marrow-stem in US English:
marrow-stem
noun
(In full "marrow-stem kale") a variety of kale, a cross between kohlrabi and thousand-headed kale, with thick succulent stems grown for fodder; also called chou moellier.