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Phaseolus coccineus, known as runner bean, scarlet runner bean, or multiflora bean, is a plant in the legume family, Fabaceae. Another common name is butter bean, (2025). 9789057821707, PROTA. ISBN 9789057821707 which, however, can also refer to the lima bean, a different species.
It is grown both as a food plant and an ornamental plant.
It differs from the common bean ( P. vulgaris) in several respects: the stay in the ground during germination, and the plant is a Perennial plant vine with tuberous (though it is frequently treated as an annual in colder climates).
The knife-shaped pods are normally green; however, there are rare varieties bred by amateurs that have purple pods. An example of such a purple-podded runner bean is 'Aeron Purple Star'.
Runner beans have also been called "Oregon lima bean", and in Nahuatl ayocotl or in Spanish ayocote. Runner beans, like all , contain the toxic protein phytohaemagglutinin and thus should be cooked well before eating.
The seeds of the plant can be used fresh or as dried beans. The pods are eaten whole while young and not yet fibrous, though they tend to have a rougher surface than the common bean. The starchy roots of this perennial are eaten in Mesoamerica.
The beans are used in many cuisines. It is a popular side vegetable in British cuisine. A variety named 'Judión de la Granja' producing large, white, edible beans is cultivated in San Ildefonso, Spain. It is the basis of a Segovian regional dish also named Judiones de la Granja, in which the beans are mixed with pig's ears, pig's trotters, and chorizo, amongst other ingredients.
In Greece, cultivars of the runner bean with white blossom and white beans are known as fasolia gigantes (φασόλια γίγαντες). They are grown under protective law in the north of Greece within the regions of Kato Nevrokopi, Florina and Kastoria. The beans have an important role in Greek cuisine, appearing in many dishes (such as Gigantes plaki). In English, they are sometimes colloquially referred to as elephant beans. In Austria the coloured versions are cultivated and served as "Käferbohnen" ("beetle-bean"), a dish made of the dry beans with pumpkin seed oil. It is considered a typical dish of regional Austrian cuisine, but dried runner beans are also consumed to a small extent in Germany. In Turkey, runner beans are the main ingredient in bean Pilaki and Piyaz.
Greece and northern Africa are the sources of pods of the runner beans sold as "green beans" in European markets during the cold period. The pods can be identified by their big size and the rougher surface.
include: Phaseolus coccineus. FloriData.
P. coccineus subsp. darwinianus is a cultivated subspecies, commonly referred to as the botil bean in Mexico.
The related species considered most useful for interbreeding with P. coccineus to increase its genetic diversity are P. dumosus and P. vulgaris.
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