Hypocalymma verticillare is a species of flowering plant in the myrtle family Myrtaceae, and is endemic to the south-west of Western Australia.

Hypocalymma verticillare is an erect shrub that typically grows to 20–80 cm (7.9–31.5 in) high and has slender, glabrous, prominently ridged young stems.

[2][3][4] Hypocalymma verticillare was first formally described in 2013 by Barbara Lynette Rye in the journal Nuytsia from specimens collected north-east of Walpole in 2005.

[4] This species of Hypocalymma grows in peat swamps in shrubland in the Jarrah Forest and Warren bioregions of south-western Western Australia.

[2][3] Hypocalymma uncinatum is listed as "Priority Two" by the Government of Western Australia Department of Biodiversity, Conservation and Attractions,[2] meaning that it is poorly known and from one or a few locations.