''Pinellia'' is a

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial n ...

of plants in the family

Araceae The Araceae are a family of monocotyledonous flowering plants in which flowers are borne on a type of inflorescence called a spadix. The spadix is usually accompanied by, and sometimes partially enclosed in, a spathe (or leaf-like bract). ...

native to

East Asia East Asia is the eastern region of Asia, which is defined in both geographical and ethno-cultural terms. The modern states of East Asia include China, Japan, Mongolia, North Korea, South Korea, and Taiwan. China, North Korea, South Korea ...

( China,

Korea Korea ( ko, 한국, or , ) is a peninsular region in East Asia. Since 1945, it has been divided at or near the 38th parallel, with North Korea (Democratic People's Republic of Korea) comprising its northern half and South Korea (Republi ...

, Japan).Kew World Checklist of Selected Plant Families
/ref> Its species are commonly called green dragons due to the color and shape of the

inflorescence An inflorescence is a group or cluster of flowers arranged on a stem that is composed of a main branch or a complicated arrangement of branches. Morphologically, it is the modified part of the shoot of seed plants where flowers are formed ...

, which possesses a green, hooded

spathe In botany, a bract is a modified or specialized leaf, especially one associated with a reproductive structure such as a flower, inflorescence axis or cone scale. Bracts are usually different from foliage leaves. They may be smaller, larger, or o ...

from which protrudes a long, tongue-like extension of the spadix. The leaves vary greatly in shape among different species, from

simple Simple or SIMPLE may refer to: * Simplicity, the state or quality of being simple Arts and entertainment * ''Simple'' (album), by Andy Yorke, 2008, and its title track * "Simple" (Florida Georgia Line song), 2018 * "Simple", a song by John ...

and

cordate Cordate is an adjective meaning ' heart-shaped' and is most typically used for: * Cordate (leaf shape), in plants * Cordate axe, a prehistoric stone tool See also * Chordate A chordate () is an animal of the phylum Chordata (). All chord ...

compound Compound may refer to: Architecture and built environments * Compound (enclosure), a cluster of buildings having a shared purpose, usually inside a fence or wall ** Compound (fortification), a version of the above fortified with defensive struct ...

with three to many leaflets. ''Pinellia'' reproduces rapidly from seed and many species also produce bulbils on the leaves. Both characteristics have allowed some species to become weedy in temperate areas outside their native range, notably '' Pinellia ternata'' in eastern North America.

Species

Use in Traditional Chinese Medicine

The processed root, known as Zhi ban xia or Ban xia, is one of the most important herbs in

Chinese Medicine Traditional Chinese medicine (TCM) is an alternative medical practice drawn from traditional medicine in China. It has been described as "fraught with pseudoscience", with the majority of its treatments having no logical mechanism of action ...

to transform phlegm and stop coughing. The herb is warm and drying and should be used only in people who are not hot or dry (known as yin deficient.) It is used in small 3-6 gram dosages in herbal formulas to warmly dry the lungs, to stop nausea and vomiting, and to address goiters or scrofula. Slices of the dried root are also used as a base for

moxibustion Moxibustion () is a traditional Chinese medicine therapy which consists of burning dried mugwort ('' wikt:moxa'') on particular points on the body. It plays an important role in the traditional medical systems of China, Japan, Korea, Vietnam, ...

. Because the raw root is toxic, it is soaked in water to remove

oxalates Oxalate (IUPAC: ethanedioate) is an anion with the formula C2O42−. This dianion is colorless. It occurs naturally, including in some foods. It forms a variety of salts, for example sodium oxalate (Na2C2O4), and several esters such as dimethyl ...

and other irritants, or processed with

ginger Ginger (''Zingiber officinale'') is a flowering plant whose rhizome, ginger root or ginger, is widely used as a spice and a folk medicine. It is a herbaceous perennial which grows annual pseudostems (false stems made of the rolled bases of ...

. Unprocessed root is only used externally in Chinese Medicine. When listed as an ingredient in a supplement for weight loss or energy, ''Pinellia'' has been charged with indicating the presence of ephedra

alkaloid Alkaloids are a class of basic BASIC (Beginners' All-purpose Symbolic Instruction Code) is a family of general-purpose, high-level programming languages designed for ease of use. The original version was created by John G. Kemeny and Th ...

s,First ban of a supplement tests 1994 law
/ref> which would be a violation of labeling laws.

References

External links

Images {{Taxonbar, from=Q1243951 Aroideae Araceae genera Flora of China Flora of Eastern Asia