Type

"Western Australia: Central Gardner: ~3 km east of New Theda Station Homestead, ~2 km along track past Tugboat Creek towards Moran River, 21 Feb. 2006, <i>R.L.Barrett 3262 & M.D.Barrett</i> (holotype: PERTH; isotype: NE).

Etymology

"Named from the Latin <i>umbrosus</i> (growing in shade), in reference to the rock overhang habitat of the species."

Type

"Western Australia: Central Gardner: ~3 km east of New Theda Station Homestead, ~2 km along track past Tugboat Creek towards Moran River, 21 Feb. 2006, <i>R.L.Barrett 3262 & M.D.Barrett</i> (holotype: PERTH; isotype: NE).