Dig deeper at SERNEC, a consortium of southeastern herbaria.

Read more about Obedient-plant at Vascular Plants of North Carolina.

Garden escapes show some intermediacy between ssp. praemorsa and ssp. virginiana, and Cantino (1982) suggests that cultivars are likely inter-subspecific hybrids, stating "because the genetic background of modern cultivars is unknown, they cannot be reasonably placed in either subspecies and should not be identified below the species level". Read more in Weakley's Flora (2022)

SYNONYMOUS WITH PLANTS NATIONAL DATABASE:
Physostegia virginiana ssp. virginiana   FAMILY Lamiaceae

SYNONYMOUS WITH Floristic Synthesis of North America. BONAP (Kartesz, 2015)

Physostegia virginiana ssp. virginiana

SYNONYMOUS WITH Manual of Vascular Plants of NE US & Adjacent Canada (Gleason & Cronquist,1991)

Physostegia virginiana var. virginiana

SYNONYMOUS WITH A monograph of the genus Physostegia (Labiatae) (Cantino, 1982)

Physostegia virginiana ssp. virginiana

INCLUDED WITHIN VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 164-13-001:

Dracocephalum virginianum   FAMILY Lamiaceae

INCLUDED WITHIN Manual of the Southeastern Flora (Small, 1933, 1938)

Dracocephalum virginianum

COMMON NAME:
Northern Obedient-plant, False Dragonhead

         To see larger pictures, click or hover over the thumbnails.

USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913    pnd_drvi3_001_lvd

        

JK Marlow    jkm0406a_26

June    York County    SC

Daniel Stowe Botanical Garden

Leaves are narrowly lanceolate and sharply toothed, per Wildflowers of the Southern Mountains (Smith, 1998).

JK Marlow    jkm0308s_22

August    Haywood County    NC

Corneille Bryan Native Garden

Keith Bradley    kab_p_virginiana_78601

August        Canada

Montreal Botanical Garden

The upper lip is entire and helmet-like; lower lip is shorter with 3 lobes, per Wildflowers of Tennessee (Carman, 2005).

Keith Bradley    kab_p_virginiana_78607

August        Canada

Montreal Botanical Garden

Each plant has four rows of 1" long zygomorphic flowers, per Wild Flowers of NC, 1st edition.

JK Marlow    jkm0509f_22

September    Rutherford County    NC

In cultivation

Calyx lobes ascending and less than 1/3 the length of the tube, per Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968).

WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/24/22):
Physostegia virginiana ssp. virginiana   FAMILY Lamiaceae

SYNONYMOUS WITH PLANTS NATIONAL DATABASE:
Physostegia virginiana ssp. virginiana   FAMILY Lamiaceae

SYNONYMOUS WITH Floristic Synthesis of North America. BONAP (Kartesz, 2015)
Physostegia virginiana ssp. virginiana

SYNONYMOUS WITH Manual of Vascular Plants of NE US & Adjacent Canada (Gleason & Cronquist,1991)
Physostegia virginiana var. virginiana

SYNONYMOUS WITH A monograph of the genus Physostegia (Labiatae) (Cantino, 1982)
Physostegia virginiana ssp. virginiana

INCLUDED WITHIN VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 164-13-001:
Dracocephalum virginianum   FAMILY Lamiaceae

INCLUDED WITHIN Manual of the Southeastern Flora (Small, 1933, 1938)
Dracocephalum virginianum