Hollowroot
Corydalis cava (L.) Schweigg. & Körte
- light
- Part sun
- water
- Medium
- tall
- 23 cm
- wide
- 10 cm
Papaveraceae
Formerly Capnites cava, Pistolochia cava
When it flowers
JFMAMJJASOND
Not known yet in the tropics: too few flowering observations to read a season from.
PetsNo pet-safety information yet
PeopleNo safety information yet
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
- Tuberous geophyteKew's checklist, not yet checked
- Climate
- TemperateKew's checklist, not yet checked
- Wild in
- Europe to CaucasusKew's checklist, not yet checked
- Light
- Part shade (3 to 6 h)Read from RHS, one source
- Height
- 15 cm to 30 cmRead from RHS and Wikipedia, checked by a majority of its sourcesBacked by both sources. Sources differ: RHS 0.1–0.5 m; Wikipedia 15–30 cm
- Spread
- 10 cmRead from RHS, one source
- Water
- Average: moist, well drainedRead from RHS, one source
- Flowers
- White, purpleRead from RHS and Wikipedia, checked by a majority of its sourcesBacked by both sources. Sources differ: RHS purple, white; Wikipedia purple, red, white
- Coldest it survives
- -15 °C (USDA zone 7b)Read from RHS, one source
Not known yet: heat, hottest it survives.
In other languages (6)
- Czech
- dymnivka dutá
- German
- Hohler Lerchensporn, Hohlknollige Lerchensporn
- Finnish
- etelänkiurunkannus
- French
- corydale creuse
- Dutch
- holwortel, Holwortel
- Slovenian
- votli petelinček
Where this comes from
- Wikidata, read 2026-10-25, CC0-1.0
- Kew's checklist, read 2026-10-24, CC-BY-4.0
- RHS, read 2026-10-25, fact, cited
- Wikipedia, read 2026-10-25, fact, cited
- Wikimedia Commons, read 2026-10-25, CC BY-SA 3.0
- 3D model: Corydalis cava (built for Vanagrha) by Vanagrha, own
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.