Alpine Barrenwort, Bishop'S Hat, Common Barrenwort
Source of plant
With shorter rhizomes than the species, it spreads only 4-5" a year, but its denser growth habit and thick foliage make it a far superior groundcover for smothering out weeds. Inner-sepals are pale red. Overall height is only 8". Same drought tolerance as the species.
USDA Hardiness Zone