Chelidonium L.


Greek chelidon—swallow; it is a traditional European belief that the flowers open when the swallow returns from migration and die when they fly off again.

Herbaceous perennials. Sap yellow-orange, irritatant. Leaves deeply dissected, long stalked. Flowers yellow, about 1.5 cm wide in few-flowered clusters, the buds pear-shaped. Sepals 2, free. Petals 4, obovate. Stamens numerous. Stigma 2-lobed, style short; spring. Carpels 2, united. Ovary 1-chambered. Fruit a cylindrical capsule.

Plants may self-seed and become weedy; not recommended.

Seed or division.

Deeply dissected basal and stem leaves; flowers yellow, about 1.5 cm wide; capsules held erect when mature.

1 species from temperate and subarctic Europe and W Asia.

Source: Spencer, R. (1997). Papaveraceae. In: Spencer, R.. Horticultural Flora of South-eastern Australia. Volume 2. Flowering plants. Dicotyledons. Part 1. The identification of garden and cultivated plants. University of New South Wales Press.

kingdom Plantae
phylum   Tracheophyta
class    Magnoliopsida
superorder     Ranunculanae
order      Ranunculales
family       Papaveraceae
Higher taxa
Subordinate taxa
species         Chelidonium majus L.