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Phlox glaberrima ssp. interior

Phlox glaberrima L. ssp. interior (Wherry) Wherry

Marsh phlox, Smooth phlox

Polemoniaceae (Phlox Family)

Synonym(s): Phlox glaberrima var. interior


USDA Native Status: L48 (N)

An erect, clump-forming perennial, 20-30 in. tall, with large, broadly lance-shaped leaves and 4-8 in. wide terminal and axillary clusters of bright-pink, lavender, or rarely white flowers.


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Plant Characteristics

Duration: Perennial
Habit: Herb
Size Class: 1-3 ft.

Bloom Information

Bloom Color: Pink , Purple
Bloom Time: Jun , Jul , Aug , Sep


USA: AL , AR , IL , IN , KY , LA , MO , MS , OH , OK , TN , WI
Native Distribution: S.e. WI, IL & n.w. OH, s. to n.e. MO & KY
Native Habitat: Wet woods; thickets

Growing Conditions

Light Requirement: Part Shade
Soil Moisture: Wet
Soil Description: Moist to mesic soils.
Conditions Comments: The species P. glaberrima is similar but occurs to the south and east (FL to s.e. VA, w. to KY, s.e. MO & AR) of the subspecies.


Description: Best propagated by unstratified seed sown in fall or stratified seed sown in spring.
Seed Collection: Not Available
Seed Treatment: Not Available
Commercially Avail: yes

Additional resources

USDA: Find Phlox glaberrima ssp. interior in USDA Plants
FNA: Find Phlox glaberrima ssp. interior in the Flora of North America (if available)
Google: Search Google for Phlox glaberrima ssp. interior


Record Modified: 2007-01-01
Research By: TWC Staff

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