Cardamine pratensis, the cuckoo flower, lady's smock, mayflower, or milkmaids, is a flowering plant in the family Brassicaceae. It is a perennial herb native throughout most of Europe and western Asia. The specific name pratensis is Latin for "meadow".
Cardamine pratensis is a herbaceous, hairless, perennial plant growing to 40–60 cm tall, with pinnate leaves 5–12 cm long with 3–15 leaflets, each leaflet about 1 cm long. The flowers are produced on a spike 10–30 cm long, each flower 1–2 cm in diameter with four very pale violet-pink (rarely white) petals. The style of the fruit is short or longish. It grows best close to water.
Its common name cuckoo flower derives from the formation of the plant's flowers at around the same time as the arrival each spring of the first cuckoos in the British Isles. An alternative 16th century dated tale refers to 'cuckoo spit', which the plant is sometimes covered in, due to a bug called the froghopper and not the cuckoo.
The species is commonly found throughout the British Isles.
It is grown as an ornamental plant in gardens, and has become naturalised in North America as a result of cultivation. In some European countries, including parts of Germany, the plant is now under threat.
It is a food plant for the orange tip butterfly (Anthocharis cardamines) and makes a valuable addition to any garden which aims at attracting wildlife. It was once used as a substitute for watercress.
Additional general information edit
Cardamine pratensis in Bavaria, Germany
Cardamine pratensis growing in Wiltshire, UK
Details of flowers
Buds of a Cardamine pratensis
Botanical illustration from Otto Wilhelm Thomé Flora von Deutschland, Österreich und der Schweiz 1885, Gera, Germany
Flowers, pinker variety
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