- Source: Physostegia
Physostegia, the lionshearts or false dragonheads (in reference to their similarity to Dracocephalum), is a genus of flowering plants in the family Lamiaceae, native to North America (United States, Canada, northern Mexico). They are erect rhizomatous herbaceous perennials inhabiting damp, sunny places.
They grow up to 2 m (7 ft) tall with purple or pink tubular flowers in racemes in summer.
The generic name comes from two Greek words, physa (a bladder) and stege (a covering), referring to the calyx, which becomes full of fruit when mature.
Physostegia virginiana is the most common species, and is known as "obedient plant".
Species
Physostegia angustifolia Fernald - lower Mississippi Valley, southern Great Plains
Physostegia correllii (Lundell) Shinners - Texas, northern Mexico
Physostegia digitalis Small - Texas, Louisiana, Arkansas, Alabama
Physostegia godfreyi P.D.Cantino - Florida Panhandle
Physostegia intermedia (Nutt.) Engelm. & A.Gray - lower Mississippi Valley, southern Great Plains
Physostegia ledinghamii (B.Boivin) P.D.Cantino - Northwest Territories, Alberta, Saskatchewan, Manitoba, North Dakota
Physostegia leptophylla Small - Southeast from Florida to Virginia
Physostegia longisepala P.D.Cantino - Texas, Louisiana
Physostegia parviflora Nutt. ex A.Gray - western Canada (Manitoba to British Columbia), northwestern + north-central United States (Illinois to Washington)
Physostegia pulchella Lundell - eastern Texas
Physostegia purpurea (Walter) S.F.Blake - Southeast from Florida to North Carolina
Physostegia virginiana (L.) Benth. - much of eastern + central US + Canada; northeastern Mexico
References
External links
University of Texas Herbarium