إِبِلٌ طِلَاحِيَّةٌ

and طُلَاحِيَّةٌ, (S, K,) the latter anomalous, (S,) or the latter is a dialect var. of the former, which is not a rel. n. from the plural طِلَاحٌ, because, when a rel. n. is formed from a plural, the plural is reduced to its singular form, unless it is used as a name of a particular thing, (from a marginal note in copies of the S, [see also Ham pp. 791-2,]) Camels feeding upon the trees called طِلَاح [or طَلْح]. (S, K.)