Monographs Details: Juncus liebmannii var. polycephalus Balslev
Authority: Balslev, Henrik. 1996. Juncaceae. Fl. Neotrop. Monogr. 68: 1-167. (Published by NYBG Press)
Description:Variety Description - Erect, graceful herb with creeping rhizome and flexible culms. Leaves present as basal bladeless cataphylls and (mostly) as foliar leaves along the culm. Inflorescence composed of 10-30 glomerules, each with 2-4 flowers, the glomerules remaining distinct.

Discussion:Juncus liebmannii var. polycephala possesses the typical inflorescence found in Juncus subgen. Sep-tati; the flowers are arranged in racemose flower heads which are then arranged in an anthela, i.e., a cymose arrangement where the proximal branches overtop the distal ones. In this respect it differs from the other two varieties of J. liebmannii, both of which exhibit a considerable degree of condensation of the inflorescence so it consists of usually one or two flower masses that are not as dense as the flower heads otherwise found in the subgenus.
Distribution:Mexico North America| Chiapas Mexico North America| Durango Mexico North America| Sinaloa Mexico North America| Guatemala Central America| Chimaltenango Guatemala Central America|