Cutleaf coneflower Toxic?

Updated 2026-03-06| 2 min read| 3,554 found this helpful

All parts of Rudbeckia laciniata are toxic, classified as Moderate toxicity per CliniTox standards

Ingestion causes neurological, respiratory and gastrointestinal symptoms, and may be fatal to small mammals like rabbits and guinea pigs

It is easily confused with multiple non-toxic related species, as well as highly toxic Pericallis hybrids

FAQ

Is Cutleaf coneflower toxic to Humans?

No confirmed human toxicity or symptom data available from the provided sources (Unknown)

Is Cutleaf coneflower toxic to Cats?

No confirmed cat toxicity or symptom data available from the provided sources (Unknown)

Is Cutleaf coneflower toxic to Dogs?

No confirmed dog toxicity or symptom data available from the provided sources (Unknown)

Is Cutleaf coneflower toxic to Horses?

No confirmed horse toxicity or symptom data available from the provided sources (Unknown)

Not sure which plant? Snap a photo to ID in 1 secondGet App

Toxicity Details

Humans

Unknown

No confirmed human toxicity or symptom data available from the provided sources

Cats

Unknown

No confirmed cat toxicity or symptom data available from the provided sources

Dogs

Unknown

No confirmed dog toxicity or symptom data available from the provided sources

Horses

Unknown

No confirmed horse toxicity or symptom data available from the provided sources

Toxicity Snapshot

Toxic PartsWhole plant

Exposure RouteIngestion is the primary confirmed exposure route; skin contact toxicity is not documented in the provided dataset

Toxic Compoundsα-Terthienyl; α-Terthienyl-related thiophene derivatives; Costunolide; Reynosin

First Aid & Prevention

First 30 Minutes

• If ingestion is confirmed and the subject is conscious, safely remove remaining plant material from the mouth to prevent further intake
• Do not induce vomiting or administer food/water unless explicitly guided by a veterinary or medical professional
• Move the exposed subject to a calm, safe area to monitor for early symptom onset

Contact Vet Immediately

• If abnormal symptoms appear after suspected ingestion, including ataxia, excessive salivation, abdominal pain or rapid breathing
• If ingestion of a large quantity of the plant is confirmed even if no symptoms are present
• If the exposed subject is livestock, a small pet, or a vulnerable individual

Prevention

• Avoid planting Rudbeckia laciniata in areas accessible to livestock, pets or young children
• Learn to distinguish this species from visually similar non-toxic Asteraceae plants to reduce misidentification risk
• Do not feed unknown composite flowers to livestock or pets

Treatment & Prognosis

• Perform appropriate decontamination procedures tailored to the exposed species
• Administer symptomatic therapy to address respiratory distress, pain, dehydration and other presenting symptoms
• Monitor food and water intake of exposed livestock for at least 14 days post-exposure

Emergency? Open PlantFun for real-time AI guidanceGet App

Professional Toxicology

Scientific NameRudbeckia laciniata L.

AliasesGolden glow、Schlitzblättriger Sonnenhut、Schlitzblättrige Rudbeckie、Schlitzblatt-Rudbeckie、Rudbeckie découpée、Rudbeckia comune

Toxicity Grade

HumansUnknown

CatsUnknown

DogsUnknown

HorsesUnknown

Target Organs

Nervous systemRespiratory systemGastrointestinal tractMusculoskeletal system

Mechanism of Action

• The exact toxic mechanism is not fully documented in the provided dataset

• Harmful polyine and sequiterpene compounds are responsible for the observed neurological, respiratory and gastrointestinal symptoms

Other Species Risk (CliniTox)

Information from CliniTox veterinary text.

Pigs: Ingestion causes ataxia, tachypnea, salivation, abdominal pain, involuntary chewing movements, refusal to eat or drink for 24-36 hours, and reduced food intake for up to 14 days post-exposure

Sheep: Exhibit the same general symptoms as pigs, but may develop tolerance to the plant after repeated exposure

Rabbits: Ingestion causes the same general symptoms as pigs, plus hind leg paralysis, and may result in death

Guinea pigs: Ingestion causes the same general symptoms as pigs, plus hind leg paralysis, and may result in death

Confusion Risk

The following plants look similar and may be confused:

Other Rudbeckia species Rudbeckia spp. (excluding R. laciniata)

Visually similar in flower and foliage structure, but other Rudbeckia species are non-toxic, unlike R. laciniata

Aster species Aster spp.

Belongs to the same Asteraceae family with similar composite flower shape, but listed Aster species are non-toxic

Purple coneflower Echinacea purpurea

Similar composite flower structure, commonly grown in the same garden settings, but is non-toxic

Use PlantFun to scan and avoid misidentificationGet App

Related Toxic Plants

Common ragwort

Jacobaea vulgaris

High toxicity, causes irreversible liver damage

Florist's chrysanthemum

Chrysanthemum × morifolium

Low to Moderate toxicity, causes contact dermatitis and gastrointestinal distress

Common tansy

Tanacetum vulgare

Moderate toxicity, causes neurological and gastrointestinal symptoms if ingested

Download PlantFun App

Identify, grow and care for plants effectively!

Instant Plant ID

Take a photo to quickly identify plants.

Smart Care Reminders

Generate watering and care schedules.

Toxicity & Disease Diagnosis

Identify toxic plants and pests with treatment advice.

Data Sources

1. CliniTox (Universität Zürich)

This information is for reference only and does not constitute medical advice. If ingestion or poisoning is suspected, seek medical or veterinary attention immediately.