Cats
Potentially toxicConsulted references classify the plant as toxic or irritating for that pet type.
Verified against ASPCA/provenance audit 2026-05-06 on May 6, 2026.
cat safety reference
Is Ranger's Button safe for cats?
Sphenosciadium capitellatum
Ranger's Button is a perennial herb native to the western United States, known for its distinct, button-like flower clusters. It is considered toxic to pets if ingested and should be kept out of reach.
Ranger's ButtonSphenosciadium capitellatumSwamp White Heads
- Light
- Full sun to partial shade
- Habit
- Herbaceous perennial
- Care
- Moderate
Safety status
What this means for your cat
Ranger’s Button is an Apiaceae-family wildflower most often encountered on hikes through wet meadows. ASPCA lists it as toxic to cats, with furanocoumarins as the toxic principle and photosensitization — sunburn-like skin reactions in light-skinned areas after sun exposure — as the chief clinical sign. ASPCA notes large amounts are needed to produce the effect, so most casual exposures are mild.
What to watch for
Most common: redness, irritation, or sunburn-like lesions on light-pigmented or thinly furred areas (nose, ears, eyelids, belly) after exposure plus sunlight. Possible: skin tenderness, itchiness, or scabbing in those areas over the following day or two. ASPCA does not list GI signs as a hallmark for this plant; vomiting or drooling, if seen, would be incidental from chewing the bitter foliage.
Time window
ASPCA does not specify exact timing. Furanocoumarin photosensitization typically develops within hours to a couple of days after the ingested or contacted plant material is followed by sun exposure, with skin signs resolving over days once exposure stops.
When to call the vet
Call your vet if you see spreading skin lesions, blistering, the skin is painful to the touch, or your cat seems systemically unwell after a known ingestion. Keep an exposed cat indoors and out of direct sunlight while you sort out next steps. ASPCA Animal Poison Control: (888) 426-4435.
Sources: ASPCA (no first-aid guidance).
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
Drooling, vomiting, diarrhea, and potential lethargy.
Escalation note
Ingestion can cause gastrointestinal distress. Please contact your veterinarian immediately if you suspect your cat has consumed any part of this plant.
Safer alternatives
No hand-picked alternatives for this plant yet. You can still pick your own using the Compare button on any other plant.
Source evidence
Questions about Ranger's Button
Is Ranger's Button toxic to cats?
Yes, Ranger's Button (Sphenosciadium capitellatum) is considered potentially toxic to cats. It contains furanocoumarins, which can cause photosensitization — meaning skin damage triggered by sun exposure after contact or ingestion.
What symptoms will my cat show after eating Ranger's Button?
The most notable signs are redness, irritation, or sunburn-like lesions on light-pigmented or thinly furred skin (nose, ears, eyelids, belly) that develop within hours to a couple of days after exposure followed by sunlight. You may also see skin tenderness, itchiness, or scabbing in those areas. Drooling or vomiting can occur incidentally from chewing the bitter foliage.
What part of Ranger's Button is dangerous to cats?
The furanocoumarins responsible for photosensitization are present in the plant material itself — both ingestion and skin contact can lead to sensitization. The skin reaction only manifests after the cat is subsequently exposed to sunlight, so keeping an exposed cat indoors and out of direct sun is an important immediate step.
What should I do if my cat ate or touched Ranger's Button?
Keep your cat indoors and away from direct sunlight right away to prevent photosensitization from developing. Call your vet if you notice spreading skin lesions, blistering, pain on touch, or your cat seems systemically unwell. For immediate guidance, contact the ASPCA Animal Poison Control Center at (888) 426-4435.
Same cat verdict
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