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Rheum rhabarbarum is a species of flowering plant in the family Polygonaceae, native to a region stretching from southern Siberia to north and central China. [1] It has been harvested from the wild for centuries for its root, which was harvested for use as a popular medicine in Europe and Asia. It was later cultivated for its root in England ...
Gunnera manicata is a large, clump-forming herbaceous perennial growing to 2.5 m (8 ft) tall by 4 m (13 ft) or more. The leaves of G. manicata grow to an impressive size. . Leaves with diameters well in excess of 120 cm (4 ft) are commonplace, with a spread of 3 m × 3 m (10 ft × 10 ft) on a mature plant.The largest on record had leaves up to eleven feet (3.3 meters) in width.
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.
Rheum ribes, the Syrian rhubarb or currant-fruited rhubarb, [2] or warty-leaved rhubarb, [3] is an edible wild rhubarb species in the genus Rheum.It grows between 1000 and 4000 m on dunite rocks, among stones and slopes, and is now distributed in the temperate and subtropical regions of the world, chiefly in Western Asia (Turkey, Syria, Lebanon, Iraq, Iran, Azerbaijan, Armenia) to Afghanistan ...
The drug rheum is prepared from the rhizomes and roots of another species, R. officinale or medicinal rhubarb. This species is also native to Asia, as is the turkey rhubarb, R. palmatum. Another species, the Sikkim rhubarb, R. nobile, is limited to the Himalayas. The centre of diversity for this genus is found in Central Asia. [18]
Rheum palmatum is a species of flowering plant in the knotweed family Polygonaceae. It is commonly called Chinese rhubarb, [1] [2] ornamental rhubarb, [3] Turkey rhubarb [2] or East Indian rhubarb. [2] Rheum palmatum is a herbaceous perennial related to the edible rhubarb. It is primarily used in traditional medicine, and as an ornamental ...
The seeds are 8–12 mm (5 ⁄ 16 – 1 ⁄ 2 in) long and 5–8 mm (3 ⁄ 16 – 5 ⁄ 16 in) wide. Cow parsnip is a tall herbaceous perennial plant, [7] reaching heights of 3 metres (10 feet). [8] The stems are hollow and densely hairy. [9] The leaves are very large, up to 40 centimetres (16 inches) across and divided into three lobes. [8]
The seeds of two species of Fagopyrum, known as buckwheat, are eaten in the form of groats or used to make flour. The petioles of rhubarb ( Rheum rhabarbarum and hybrids) are a food item. The leaves of the common sorrel ( Rumex acetosa ) are eaten in salads or as a leaf vegetable .