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(Senna marilandica)
Maryland Senna

Host Plant: Sulphur Butterflies

Nectar Plant: other insects

Flower Color: yellow

Growth Habit: herbaceous perennial that grows to 6 feet tall

Range in North America: midwest and eastern United States

Exposure: Full sun

Hardiness: Zones 4-9

Soil Requirements: medium moisture, well-drained soils

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Maryland Senna (Senna marilandica)

Yellow flowers of Maryland senna (Senna marilandica).
Flowers of Maryland Senna — Senna marilandica (L.) Link observed in United States of America
by mefisher (licensed under CC0 1.0)

Alternative Names

Maryland Wild Sensitive Plant, Maryland Wild Senna, Wild Senna, American Senna

Description of Maryland Senna (Senna marilandica)

Maryland senna (Senna marilandica), a member of the Fabaceae (Pea Family), is a herbaceous perennial that grows to 6 feet tall and has yellow flowers that bloom in the summer.  More information on this species can be found on this blog post.

Hosted Species

Cloudless Sulphur (Phoebis sennae)

Cloudless Sulphur Butterfly
Cloudless Sulphur — Meganmccarty, Public domain, via Wikimedia Commons

Orange-barred Sulphur (Phoebis philea)

Orange Barred Sulphur on foliage
Orange-barred Sulphur on leaf — ALAN SCHMIERER, CC0, via Wikimedia Commons

Sleepy Orange (Eurema nicippe)

Sleepy Orange Butterfly on Flower
Sleepy Orange on pink flower — ALAN SCHMIERER, CC0, via Wikimedia Commons

Tailed Orange (Eurema proterpia)

Tailed Orange Butterfly
Tailed Orange — ALAN SCHMIERER, CC0, via Wikimedia Commons


This species grows in open woodlands and wet meadows.

Range of Maryland Senna (Senna marilandica) in the United States and Canada

Range of Maryland senna (Senna marilandica) in the United States and Canada.

Interesting Facts

The species name, marilandica, means Maryland in Latin.



Native Location

Alabama, Arkansas, District of Columbia, Florida, Georgia, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maryland, Michigan, Mississippi, Missouri, Nebraska, New Jersey, New York, North Carolina, Ohio, Oklahoma, Pennsylvania, South Carolina, Tennessee, Texas, Virginia, West Virginia, Wisconsin

USDA Plant Hardiness Zone

Zone 4, Zone 5, Zone 6, Zone 7, Zone 8, Zone 9

Exposure Requirements

Full Sun

Plant Habit


Soil Requirements


Hosted Species

Eurema nicippe (Sleepy Orange), Eurema proterpia (Tailed Orange), Phoebis philea (Orange-barred Sulphur), Phoebis sennae (Cloudless Sulphur)


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Maryland Senna”

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