Neuter plural of this rare adjective, presumably extracted from somewhere. The extant possibilities, outside lexicography, are two: Theophrastus, HP 1.5.2 (giving the vine as an example); Basil of Caesarea, Homilies on the hexaemeron 5.7.
[1] Same glossing in Photius and other lexica.
[2] cf. generally kappa 433 (and tau 1081).