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celandine, devil's milk, greater celandine, swallow wort

Habit Plants to 10 dm.
Stems

branching, ribbed.

Leaves

to 35 cm;

petiole 2-10 cm;

blade deeply 5-9-lobed;

margins irregularly dentate or crenate, rarely laciniate.

Inflorescences

peduncle 2-10 cm.

Flowers

pedicels 5-35 mm;

sepals to 1 cm;

petals bright yellow, obovate to oblong, to 2 cm wide;

style ca. 1 mm.

Capsules

linear to narrowly oblong, 2-5 cm, glabrous.

Seeds

black, reticulate-pitted.

Chelidonium majus

Phenology Flowering spring–summer.
Habitat Moist to dry woods, thickets, fields, hedgerows and fences, roadsides, railroads, and waste ground
Elevation 0-1000 m (0-3300 ft)
Distribution
from FNA
CT; DE; IA; IL; IN; MA; MD; ME; MI; MN; MO; MT; NC; NH; NJ; NY; OH; PA; RI; UT; VA; VT; WA; WI; WV; BC; NB; NS; ON; PE; QC; Eurasia [Introduced in North America]
[WildflowerSearch map]
[BONAP county map]
Discussion

The irritating sap of Chelidonium has been used to treat warts. In the vegetative state, this weedy introduction from Eurasia is difficult to distinguish from the native Stylophorum diphyllum.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Source FNA vol. 3.
Parent taxa Papaveraceae > Chelidonium
Name authority Linnaeus: Sp. Pl. 1: 505. (1753)
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