Thursday, January 19, 2017

Succisa pratensis

Succisa pratensis Moench, also known as devil's-bit or devil's-bit scabious, is a flowering plant in the honeysuckle family Caprifoliaceae. It differs from other similar species in that it has 4-lobed flowers, whereas small scabious and field scabious have 5 lobes and hence it has been placed in a separate genus in the same family. It also grows on damper ground.



Species of scabious were used to treat scabies, and other afflictions of the skin including sores caused by the Bubonic Plague. The word scabies comes from the Latin word for "scratch" (scabere). The short black root was in folk tales bitten off by the devil, angry at the plant's ability to cure these ailments, in anger against the Virgin Mary, or as part of some 'devilish plot'.


Succisa pratensis is a perennial herb up to 1m tall, growing from a basal rosette of simple or distantly-toothed, lanceolate leaves. Its unlobed leaves distinguish it from Knautia arvensis (Field scabious). The plant may be distinguished from Centaurea scabiosa (greater knapweed) by having its leaves in opposite pairs, not alternate as in knapweed. The bluish to violet (occasionally pink) flowers are borne in tight compound flower heads or capitula. Individual flowers are tetramerous, with a four-lobed epicalyx and calyx and a four-lobed corolla. Male and female flowers are produced on different flower heads (gynodioecious), the female flower heads being smaller. The flowering period in the British Isles is from June until October.

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