An efarinose, candelabra species with rose-purple flowers, distinguished by the bracts which are narrowly elliptic, leaflike in the outer bracts and linear, very long, reaching the beyond the calyx in the inner bracts. Compare with related species, P. stenodonta which is similar but has an oblanceolate leaf blade which has a margin that is regularly denticulate. P. mallophylla has an oblong leaf blade with an erose-denticulate margin.