Ephedra viridis
Encyclopedia
Ephedra viridis is a species of Ephedra
Ephedra (genus)
Ephedra is a genus of gymnosperm shrubs, the only genus in its family, Ephedraceae, and order, Ephedrales. Ephedra grows in dry climates over wide areas of the northern hemisphere, including southwestern North America, Europe, north Africa, and southwest and central Asia, and, in the southern...

known by the common names green ephedra and green Mormon tea. It is native to the western United States, where it is a member of varied scrub, woodland, and open habitats.

Description

This shrub
Shrub
A shrub or bush is distinguished from a tree by its multiple stems and shorter height, usually under 5–6 m tall. A large number of plants may become either shrubs or trees, depending on the growing conditions they experience...

 is woody below, topped with many dense clusters of erect bright green twigs. They may yellow somewhat with age. Nodes along the twigs are marked by the tiny pairs of vestigial leaves, which start out reddish but soon dry to brown or black. Since the leaves are no longer functional, the stems are green and photosynthetic
Photosynthesis
Photosynthesis is a chemical process that converts carbon dioxide into organic compounds, especially sugars, using the energy from sunlight. Photosynthesis occurs in plants, algae, and many species of bacteria, but not in archaea. Photosynthetic organisms are called photoautotrophs, since they can...

. Male plants produce pollen cones at the nodes, each under a centimeter long with protruding yellowish sporangiophores
Sporangium
A sporangium is an enclosure in which spores are formed. It can be composed of a single cell or can be multicellular. All plants, fungi, and many other lineages form sporangia at some point in their life cycle...

. Female plants produce seed cones which are slightly larger and contain two seeds each.

Uses

The drug ephedrine
Ephedrine
Ephedrine is a sympathomimetic amine commonly used as a stimulant, appetite suppressant, concentration aid, decongestant, and to treat hypotension associated with anaesthesia....

, an antidepressant and decongestant, is made from this and other Ephedra species. A tea can be made by boiling the stems, explaining the common name "green Mormon tea".

External links

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