rhizomatous
/rʌɪˈzəʊmətəs/Botany
adjective
Of the nature of a rhizome; having or characterized by the possession of a rhizome; of or relating to a rhizome or rhizomes.
Origin
Early 19th century; earliest use found in The Edinburgh Encyclopaedia. From scientific Latin rhizomatosus from rhizomat-, rhizoma + classical Latin -ōsus.