Field ManualAll plants

Photo: Gabriela Ruellan, via Wikimedia CommonsLicense: CC BY 3.0

Flowering senna

Senna corymbosa (Lam.) H.S.Irwin & Barneby

Family: Fabaceae

Pet & Human Safety

People: No hazard foundPets: Not on the ASPCA lists as we read them
Hazardous parts
Not yet checked.
Preparation
n/a
Hazard type
Not yet checked.
Hazard route
Not stated by our sources (not a clearance). Detail: no human-hazard statement
How complete this information is
We have not researched the safety of this plant yet.

Toxic to pets
No ASPCA entry found.

ASPCA index has no Senna corymbosa page. Other Senna or Cassia pages (if any) are not a verdict for this species. Do not treat as pet-safe.

PlotAndPetal cannot tell you whether a plant you found can be eaten. Only someone who can see the plant can identify it.

Poison control

If someone has collapsed, cannot be woken, is having a seizure or has trouble breathing, call 911 now. For any other possible poisoning, call Poison Help: 1-800-222-1222.

Emergency number source: U.S. federal law (47 U.S.C. § 251(e)(3)), read 2026-10-07.

Naturalist Lore

Historical Background & Breeding Lore

The history of this plant and its name, and how it was bred, where we have them.

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Care

Hardiness zones

Not checked yet

Light

Sun to part shade per the Austin database.

Water needs

moderate moderate is the Austin database entry "Medium". Finger-test two inches down.

Mature size

Austin Watershed database: 6-8 ft tall and 4-6 ft wide

Soil & Drainage
Pruning & Flush Rhythm
Feeding Schedule

How to prepare the soil, when and what to feed, and how and when to prune where that applies.

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Anatomy & Guilds

Botanical Anatomy & Characteristics

How the flowers and leaves are built and which pollinators visit, where we have them.

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Field Doctor

Field Doctor

What can go wrong with this plant and what to do about it, where we have them.

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Vintage Plates

Vintage Plates

Old botanical drawings from public libraries are in the app, for plants where we have them.

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Sources

  1. Austin Watershed Protection - Watershed Plant Database: Senna, Flowering (Cassia corymbosa)
  2. Atlas of Florida Plants (USF Institute for Systematic Botany) - Senna corymbosa
  3. Kew POWO/WCVP - accepted-name record

How we choose sources

Wishlists live in the app

Wishlists are part of the Plot & Petal app, which is coming soon. Nothing is added to a wishlist from this page.

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