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Plant Details

Physostegia virginiana

Obedient-plant, Northern Obedient-plant

Scientific Name:

Physostegia virginiana

Genus:

Physostegia

Species Epithet:

virginiana

Common Name:

Obedient-plant, Northern Obedient-plant

Plant Type

Herb/Wildflower

Life Cycle

Perennial

Plant Family

Lamiaceae (Mint Family)

Native/Alien:

NC Native

Invasive Status:

(*Key)

Size:

1-3 ft.

Bloom Color(s):

Pink, Purple, Violet

Light:

Sun - 6 or more hours of sun per day, Part Shade - 2 to 6 hours of sun per day

Soil Moisture:

Moist

Bloom Time:

July, August, September, October

Growing Area:

Mountains, Piedmont, Coastal Plain

Habitat Description:

This species prefers somewhat high pH soils, and full to partial sunlight. Also, it grows best in damp (but not wet) sites, though it is not really a wetland species. It favors wet meadows, barrens and glades, seepages in open woods, damp thickets, among other sites. It does grow in open upland forests as long as the soil is quite high in pH. Uncommon to infrequent in the NC mountains. Rare in the northwestern Piedmont, but slightly more frequent farther east and south, though still mostly uncommon in the central and eastern Piedmont, and very rare in the northeastern portions. Presumed introduced or escaped in the Coastal Plain.

Leaf Arrangement:

Opposite

Leaf Retention:

Deciduous

Leaf Type:

Leaves veined, not needle-like or scale-like

Leaf Form:

Simple

Life Cycle:

Perennial

Wildlife Value:

Important for Wildlife

Landscape Value:

Highly Recommended and Available

State Rank:

S3: Vulnerable, S4: Apparently secure (*Key)

Global Rank:

G5 - Secure (*Key)

Notes:

Weakley (2018) lists two subspecies, as opposed to varieties, for this species in NC. The form ssp. praemorsa is the primary one, if not the only native one, in the state; on the other hand, ssp. virginiana is considered by him as native in NC but rare throughout.

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Links:

USDA PLANTS Database Record



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