Is Mescal Bean Toxic to Cats?
Also known as: Texas Mountain Laurel, Frijolito, Frijolillo, Sophora secundiflora · Sophora secundiflora
What makes it toxic
Cytisine and related quinolizidine alkaloids concentrated in the hard red seeds, with lower levels in leaves and flowers. Cytisine overstimulates then blocks the nervous system like nicotine poisoning.
Warning signs to watch for
Drooling, vomiting, excitement and muscle tremors within an hour, followed by weakness, staggering, slow labored breathing, drooping eyelids and collapse.
What to do if your cat eats it
Emergency. Go to a veterinary ER immediately with the seed material. Respiratory support is decisive — do not wait to see whether the cat recovers on its own.
Common questions
Do pets crack the hard seeds open?
Yes — chewing cracks the seed coat and releases cytisine, and even swallowed damaged seeds pose risk. Swept-up fallen seeds from under the tree are the classic exposure.
Is mescal bean related to mescal the drink?
No — the names are unrelated, and the bean is never used in mezcal. It is a Sophora whose seeds are among the most toxic in Texas landscapes.
More plants checked for cats
This page is general educational information, not a substitute for professional veterinary advice. Every pet is different — if your animal ate something concerning, contact your veterinarian or a pet poison hotline right away. Checking what your pet can eat? Visit our sister site SafeOrToxic.