Cats
UncertainIdentity or evidence quality is not strong enough for a firm answer.
Verified against ASPCA/provenance audit 2026-05-06 on May 6, 2026.

Centaurea solstitialis
Barnaby's Thistle is a hardy, spiny annual plant often found in open fields and meadows. While generally considered non-toxic, its fibrous nature can occasionally cause minor digestive discomfort if consumed in large quantities.
Safety status
Cats
UncertainIdentity or evidence quality is not strong enough for a firm answer.
Verified against ASPCA/provenance audit 2026-05-06 on May 6, 2026.
Cats are not the species at risk from Yellow Star Thistle. ASPCA's Barnaby's Thistle entry lists Centaurea solstitialis as non-toxic to cats — the famous "chewing disease" caused by this plant is a horse-only neurologic syndrome, not a feline one. A spiny inflorescence is more likely to be a mouth-irritation hazard than a poisoning one.
Sources: ASPCA.
If a pet has chewed or swallowed plant material and is showing symptoms, contact a veterinarian or poison resource immediately. This product is for structured reference, not diagnosis.
Cats — concern notes
Common signs
Under review — original classification flagged as a likely labeler error pending curator verification.
Escalation note
Under review — original classification flagged as a likely labeler error pending curator verification.
Safer alternatives
No hand-picked alternatives for this plant yet. You can still pick your own using the Compare button on any other plant.
NC State Extension Plant Toolbox
botanical · 94% reliability
Centaurea solstitialis is an annual plant in the Asteraceae family, commonly known as yellow star thistle.
Same cat verdict

Clintonia borealis is a woodland perennial known for its glossy leaves and striking blue berries. While generally considered safe for pets, it is not intended for consumption.
Uncertain for cats & dogs.

Dichelostemma pulchellum is a cormous perennial wildflower native to western North America, known for its clusters of violet-blue, tubular flowers. It is considered non-toxic to pets, though its fibrous nature may cause minor digestive discomfort if consumed in large quantities.
Uncertain for cats & dogs.

Creeping Rubus is a low-growing, mat-forming perennial groundcover known for its delicate foliage and trailing habit. It is considered non-toxic to pets, though ingestion of large amounts of fibrous plant material may cause mild digestive discomfort.
Uncertain for cats & dogs.
Dichelostemma is a genus of flowering corms in the asparagus family known for their unique, tubular, cluster-forming blooms. They are considered non-toxic to pets, though their fibrous nature may cause minor digestive discomfort if consumed in large quantities.
Uncertain for cats & dogs.