Photo by Melody

PlantFiles: Blisterwort
Ranunculus recurvatus

Family: Ranunculaceae (ra-nun-kew-LAY-see-ee) (Info)
Genus: Ranunculus (ra-NUN-ku-lus) (Info)
Species: recurvatus (rek-er-VAY-tus) (Info)


6-12 in. (15-30 cm)
12-18 in. (30-45 cm)
18-24 in. (45-60 cm)

Unknown - Tell us

USDA Zone 3a: to -39.9 C (-40 F)
USDA Zone 3b: to -37.2 C (-35 F)
USDA Zone 4a: to -34.4 C (-30 F)
USDA Zone 4b: to -31.6 C (-25 F)
USDA Zone 5a: to -28.8 C (-20 F)
USDA Zone 5b: to -26.1 C (-15 F)
USDA Zone 6a: to -23.3 C (-10 F)
USDA Zone 6b: to -20.5 C (-5 F)
USDA Zone 7a: to -17.7 C (0 F)
USDA Zone 7b: to -14.9 C (5 F)
USDA Zone 8a: to -12.2 C (10 F)
USDA Zone 8b: to -9.4 C (15 F)
USDA Zone 9a: to -6.6 C (20 F)
USDA Zone 9b: to -3.8 C (25 F)

Sun Exposure:
Sun to Partial Shade
Light Shade

Unknown - Tell us

Bloom Color:
Pale Yellow

Bloom Time:
Mid Spring
Late Spring/Early Summer

Grown for foliage

Other details:
Unknown - Tell us

Soil pH requirements:
Unknown - Tell us

Patent Information:

Propagation Methods:
Unknown - Tell us

Seed Collecting:
Bag seedheads to capture ripening seed

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By hello85
Thumbnail #1 of Ranunculus recurvatus by hello85

By plant_it
Thumbnail #2 of Ranunculus recurvatus by plant_it


1 positive
No neutrals
No negatives

Gardeners' Notes:

Positive plant_it On May 21, 2013, plant_it from Valparaiso, IN wrote:

Also called Hooked Buttercup, this plant gets a cute little yellow flower May - July. The upper leaves have a really cool look to them that make this plant a favorite of mine. If you don't like them, they're very easy to pull out. Or pull out and re-plant in the woods like I do whenever I have to take one out. They're not aggressive and seem to co-exist beautifully with my native plant garden.

Native to Eastern North America. About 1- 1 1/2 feet tall. The preference is light to medium shade, wet to moist conditions, and soil with abundant organic material.

The Wood Duck, Ruffed Grouse, and Wild Turkey feed on the seeds and foliage of Ranunculus spp. (Buttercups) in woodlands. The Eastern Chipmunk also eats the seeds of these plants. Hoofed mammalian herbivores usually avoid the consumption of buttercups because the toxic foliage contains a blistering agent that can irritate the mouth and gastrointestinal tract. That said, I watched as a very pregnant woodchuck passed other plants by in search Hooked Buttercup (Ranunculus recurvatus) plants. She chowed down every Hooked Buttercup she came across, eating about half of each plant as she went. The nectar of the flowers attracts primarily small bees. These include Cuckoo bees (Nomada spp.), Halictid bees (Augochlorella spp., Lasioglossum spp.), and Andrenid bees (Andrena spp.).


This plant has been said to grow in the following regions:

Valparaiso, Indiana
Erie, Michigan

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