Common Cat's-ear

Hypochaeris radicata L.

light
Sun–part
water
Medium
tall
—
wide
30 cm

Asteraceae

Also called Rough Cat's Ear, Rough Cat's-Ear, Hairy Cat's-Ear, Catsear, Hairy cat's ear

Formerly Achyrophorus radicatus, Leontodon pavonii, Porcellites radicata

When it flowers

Flowers all year in the tropics.

Read from iNaturalist photographs of it in flower. A month counts at 50% of the best month's flowering share (smoothed over three months) and 10% of its flowering count, from at least 100 flowering observations in the band.

PetsNC State Extension lists it as toxic to horses (28 Oct 2026)
PeopleNC State Extension lists it as mildly poisonous (25 Oct 2026)

If a child, a pet or anyone may have eaten a plant, contact a doctor or vet straight away, or call the National Poisons Information Centre (AIIMS, New Delhi) on 1800 116 117, free and open 24 hours.

Something wrong with it?

About it

Grows as
PerennialKew's checklist, not yet checked
Climate
TemperateKew's checklist, not yet checked
Wild in
Europe to Caucasus, N. AfricaKew's checklist, not yet checked
Light
Full sun to part shade (3 h or more)Read from NC State Extension, one source
Spread
30 cmRead from NC State Extension, one source
Water
Average: moist, well drainedRead from NC State Extension, one source
Flowers
YellowRead from NC State Extension, one source
Coldest it survives
-34.4 °C (USDA zone 4a)Read from NC State Extension, one source

Not known yet: height, heat, hottest it survives.

In other languages (12)

Dutch
Biggenkruid, Gewoon biggenkruid
root
HYPRAD, umkhothane, Irhwaburhwabu
German
Gewöhnliches Ferkelkraut
Spanish
Hierba del chancho, Achicoria, Diente de león
French
Porcelle enracinée
Czech
prasetník kořenatý
Japanese
ブタナ, タンポポモドキ
Chinese
貓兒菊, 假蒲公英猫儿菊, 假蒲公英猫耳菊
Norwegian Bokmål
kystgrisøre
Danish
Almindelig Kongepen
Finnish
liuskahäränsilmä
Lithuanian
Snaudalinė džiugūnė

Where this comes from

A fact “checked by a majority of its sources” was settled by a vote of the pages it was read from, not by a person reading it; one marked “one source” rests on that page alone. Anything else not marked checked has not been checked yet. Where nothing is known, the page says so rather than guess.