Rhubarbs
Botanical name: Rheum
Rhubarbs
Botanical name: Rheum
Description
The rhubarbs (Rheum) are a group of large-leafed flowering plants in the buckwheat (sometimes called knotweed) family. this genus is most famous for its edible species. Although their leaves are toxic, their thick red stems are edible and sport a tart flavor – they're often used in desserts and pastries such as pies. Additionally, a handful of rhubarbs species are grown ornamentally, being prized for their large, showy leaves.
Species of Rhubarbs
Chinese rhubarb
The chinese rhubarb (Rheum officinale) are a group of large-leafed flowering plants in the buckwheat (sometimes called knotweed) family. This genus is most famous for its edible species. Although their leaves are toxic, their thick red stems are edible and sport a tart flavor – they're often used in desserts and pastries such as pies. Additionally, a handful of chinese rhubarb species are grown ornamentally, being prized for their large, showy leaves.
Chinese rhubarb
Chinese rhubarb is a species of flowering knotweed that is closely related to rhubarb. However, this herbaceous perennial grows taller. It is frequently used as an ornamental plant in gardens. Despite its use in traditional Chinese medicine, its leaves are poisonous and should be handled with care.
Rheum × hybridum 'Canada Red'
The rheum × hybridum 'Canada Red' (Rheum × hybridum 'Canada Red') are a group of large-leafed flowering plants in the buckwheat (sometimes called knotweed) family. This genus is most famous for its edible species. Although their leaves are toxic, their thick red stems are edible and sport a tart flavor – they're often used in desserts and pastries such as pies. Additionally, a handful of rheum × hybridum 'Canada Red' species are grown ornamentally, being prized for their large, showy leaves.
Rheum × hybridum 'Raspberry Red’
The rheum × hybridum 'Raspberry Red’ (Rheum × hybridum 'Raspberry Red’) are a group of large-leafed flowering plants in the buckwheat (sometimes called knotweed) family. This genus is most famous for its edible species. Although their leaves are toxic, their thick red stems are edible and sport a tart flavor – they're often used in desserts and pastries such as pies. Additionally, a handful of rheum × hybridum 'Raspberry Red’ species are grown ornamentally, being prized for their large, showy leaves.
False rhubarb
False rhubarb (Rheum rhaponticum) is a plant species native to the Rila mountains of Bulgaria. This plant only grows in this one location. The false rhubarb was the first rhubarb plant discovered by Europeans. It is considered the ancestor of modern rhubarb.
Garden rhubarb
Garden rhubarb (Rheum rhabarbarum) is a hardy perennial that will grow from 61 to 122 cm tall. Heart-shape leaves with thick, succulent red or green leafstalks grow up to 46 cm long. Foliage dies back each winter. Flower stalks with hundreds of small white flowers bloom in summer and are yellow or pinkish green. Fruits with seeds ripen in fall.
Rheum altaicum
The rheum altaicum (Rheum altaicum) are a group of large-leafed flowering plants in the buckwheat (sometimes called knotweed) family. This genus is most famous for its edible species. Although their leaves are toxic, their thick red stems are edible and sport a tart flavor – they're often used in desserts and pastries such as pies. Additionally, a handful of rheum altaicum species are grown ornamentally, being prized for their large, showy leaves.
Rheum × hybridum
The rheum × hybridum (Rheum × hybridum) are a group of large-leafed flowering plants in the buckwheat (sometimes called knotweed) family. This genus is most famous for its edible species. Although their leaves are toxic, their thick red stems are edible and sport a tart flavor – they're often used in desserts and pastries such as pies. Additionally, a handful of rheum × hybridum species are grown ornamentally, being prized for their large, showy leaves.
Sikkim rhubarb
Nobody will ever have any trouble spotting sikkim rhubarb because of its bizarre appearance. This high-altitude species can be spotted from great distances by its translucent coating of whitish leaf bracts. These bracts block radiation and capture light for heat, a bit like a greenhouse.
Scientific Classification
Phylum
Vascular plants Class
Dicotyledons Order
Pinks, cacti, and allies Family
Buckwheat Genus
Rhubarbs 
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