Phylum: Magnoliophyta - Class: Equisetopsida - Order: Lamiales - Family: Orobanchaceae
This beautifully coloured broomrape has a vast area of distribution from southern Britain and Ireland, across western and central Europe, parts of Asia, North and South Africa, and North America. Although we have not seen it in the UK we are familiar with it from the Algarve region of southern Portugal where it parasitises the plants of the Lamiaceae (Mint) family.
Orobanche ramosa has a branched infloresence which carries the attractive, amethyst-coloured flowers. We frequently find large colonies of this broomrape in the Algarve from the end of March and well into May. It grows in farmland, on roadside verges and also in the sandy coastal strip.
In the United States of America Orobanche ramosa is classed as a noxious weed, and it does particular damage to potato, tomato and tobacco crops. Its eradication requires several applications of herbicides.
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