The Collaborative International Dictionary of English v.0.48:

Comose \Co"mose\ (k[=o]"m[=o]s or k[-o]*m[=o]s"), a. [L. comosus
   hairy, from coma hair.] (Bot.)
   Bearing a tuft of soft hairs or down, as the seeds of
   milkweed. --Gray.
   [1913 Webster]

WordNet (r) 3.0 (2006):

comose
    adj 1: bearing a coma; crowned with an assemblage of branches or
           leaves or bracts; "comate royal palms"; "pineapples are
           comate" [syn: comate, comose]
    2: of certain seeds (such as cotton) having a tuft or tufts of
       hair; "comate (or comose) seeds"; "a comal tuft" [syn:
       comate, comose, comal]