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Native Plant Society of Texas

Two Leaved Senna

Senna roemeriana

Fabaceae (Pea Family)

Twoleaf Senna

Plant Ecoregion Distribution Map

Native Habitat: Grassland, Woodland
Central Great Plains, Chihuahuan Deserts, Cross Timbers, Edwards Plateau, Texas Blackland Prairies

Maintenance

Plants of this genus can cause poisoning and fatal illness in humans.

Comments

Showy, bright yellow pea-like flowers. Form a neat mound shape as it grows. Larval Host: Cloudless Giant Sulphur.

Growth Form

Shrub

Height

1 to
3 ft

Spread

1 to
2 ft

Soil Type(s)

Clay, Caliche, Dry

Light Requirement

Sun, Part Shade

Water Requirement

Low

Leaf Retention

Deciduous

Lifespan

Perennial

Bloom Color

Yellow

Bloom Season

Spring, Summer, Fall

Seasonal Interest

Seeds, Nectar, Larval Host, Flowers

Wildlife Benefit

Butterflies, Birds, Bees

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Previous Scientific Name(s): Synonym(s): Cassia roemeriana

References

1) Griffith, Bryce, Omernick & Rodgers (2007). Ecoregions of Texas. 2) Miller, George O., Landscaping with Native Plants of Texas 2nd Ed., 2013, pg 53. 3) https://www.wildflower.org/plants/result.php?id_plant=SERO8. 4) http://bonap.net/TDC/Image/Map?taxonType=Species&taxonId=11697&locationType=County&mapType=Normal, 5) https://www.itis.gov/servlet/SingleRpt/SingleRpt?search_topic=TSN&search_value=505174#null