Seymeria cassioides

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Seymeria cassioides
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Lamiales
Family: Orobanchaceae
Genus: Seymeria
Species:
S. cassioides
Binomial name
Seymeria cassioides
(J.F. Gmel.) S.F. Blake

Seymeria cassioides, commonly called yaupon black-senna or senna seymeria, is a species of annual forb found in North America. [1] It is a species of obligate hermiparasite found on various species of pine. [2]

Contents

Description

Seymeria cassioides may reach a height of up to 1 meter (approximately 3.28 feet) with glandular-pubescent branches. [3] [4] Leaves are oppositely arranged, about 1 centimeter in length, and are either pinnately or bipinnately parted. [4]

Inflorescence is primarily yellow in color, with a lateral red stripe on each of the five petals. [5] Flowers are axillary and solitary. The capsule is ovoid in shape and 4 to 6 millimeters in length. [4]

Distribution and habitat

Within the United States S. cassioides can be found within the Coastal Plain region of the southeast. Its range stretches from Virginia to Florida and west to Texas. [6] There also exist disjunct populations in the Bahamas. [7]

This species can be found in habitats such as in pine savannas, sandhills, and cypress swamps. [8]

References

  1. ↑ Weakley, Alan S. (2015). Flora of the Southern and Mid-Atlantic States. University of North Carolina at Chapel Hill.
  2. ↑ Crow, A. Bigler; Shilling, Charlies L. (1 February 1980). "Use of Prescribed Burning to Enhance Southern Pine Timber Production". Southern Journal of Applied Forestry. 4 (1): 15–18.
  3. ↑ Musselman, Lytton J.; Mann, William Jr. (1978). "Root parasites of southern forests". U.S. Depepartment of Agriculture Forest Service General Technical Report. SO-20.
  4. 1 2 3 Radford, Albert E.; Ahles, Harry E.; Bell, C. Ritchie (21 December 1968). Manual of the Vascular Flora of the Carolinas. The University of North Carolina Press. ISBN   978-0807810873.
  5. ↑ "Lady Bird Johnson Wildflower Center - The University of Texas at Austin". www.wildflower.org. Retrieved 2025-10-20.
  6. ↑ "USDA Plants Database". plants.usda.gov. Retrieved 2025-10-20.
  7. ↑ Sorrie, Bruce A.; Weakley, Alan S. (January 2001). "Coastal Plain Vascular Plant Endemics: Phytogeographic Patterns". Castanea. 66 (1): 50–82.
  8. ↑ "Seymeria cassioides (Senna Seymeria) - FSUS". fsus.ncbg.unc.edu. Retrieved 2025-10-20.
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