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Rheum rhabarbarum was first described by Carl Linnaeus in 1753. [3] Linnaeus also described R. undulatum, but this is now considered to be the same species. [1]The name rha barbarum, Latin for 'foreign rha', was first used in the writings of Celsus, who uses the word to describe a valued medicinal root imported from the east.
Arctium minus, commonly known as lesser burdock, [2] little burdock, louse-bur, common burdock, [3] button-bur, cuckoo-button, [3] or wild rhubarb, [4] is a biennial plant. This plant is native to Europe , [ 5 ] but has become introduced elsewhere such as Australia , North and South America , and other places.
The genus includes the vegetable [3] rhubarb. The species have large somewhat triangular shaped leaves with long, fleshy petioles. The flowers are small, greenish-white to rose-red, and grouped in large compound leafy inflorescences. Many rhubarb cultivars have been domesticated as medicinal plants and for human consumption.
Mature rhubarb plants will send up towering flower stalks in early summer, with tight clusters of buds that open to pink flowers. You can let it flower if you wish, but if your goal is a large ...
The giant rhubarb, or Campos des Loges (Gunnera manicata), native to the Serra do Mar mountains of southeastern Brazil, is perhaps the largest species, with reniform or sub-reniform leaves typically 1.5 to 2.0 meters (4 ft 11 in to 6 ft 7 in) long, not including the thick, succulent petiole which may be up to 2.5 meters (8 feet 2 inches) in length.
Habitus Rheum webbianum is a perennial herbaceous plant [5] which grows from 0.3–2 metres (1 ft 0 in – 6 ft 7 in) in height. [1] [3] It has a stout, hollow stem bearing the inflorescence, this is finely sulcate (with many fine fissures in profile) and glabrous (hairless) or covered in papilla (papilliferous) on the surface of its upper part.
Gunnera tinctoria, known as giant rhubarb, [2] Chilean rhubarb, or nalca, is a flowering plant species native to southern Chile and neighboring zones in Argentina. It is unrelated to rhubarb , as the two plants belong to different orders , but looks similar from a distance and has similar culinary uses.
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