Safety verdict
Consulted references classify the plant as toxic or irritating for that pet type.
Pet ingestion lookup
My cat ate Ranger's Button - what should I do?
Sphenosciadium capitellatum
Potentially toxic
Contact your veterinarian or an animal poison-control resource now, especially if any amount was chewed or swallowed.
Verified against ASPCA/provenance audit 2026-05-06 on May 6, 2026.
Signs to watch for
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.
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.
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.
Sources: ASPCA (no first-aid guidance).
Poison-control resources
This page summarizes source-bound plant-safety information and is not veterinary advice.