Corallorhiza Maculata
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''Corallorhiza maculata'', or spotted coralroot, is a
North America North America is a continent in the Northern Hemisphere and almost entirely within the Western Hemisphere. It is bordered to the north by the Arctic Ocean, to the east by the Atlantic Ocean, to the southeast by South America and the Car ...
n coralroot orchid. It has three varieties: ''C. maculata var. occidentalis'' (western spotted coralroot), ''C. maculata var. maculata'' (eastern spotted coralroot or summer coralroot), and ''C. maculata var. mexicana''. It is widespread through
Mexico Mexico (Spanish: México), officially the United Mexican States, is a country in the southern portion of North America. It is bordered to the north by the United States; to the south and west by the Pacific Ocean; to the southeast by Guatema ...
,
Guatemala Guatemala ( ; ), officially the Republic of Guatemala ( es, República de Guatemala, links=no), is a country in Central America. It is bordered to the north and west by Mexico; to the northeast by Belize and the Caribbean; to the east by H ...
,
Canada Canada is a country in North America. Its ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, covering over , making it the world's second-largest country by tot ...
, St. Pierre & Miquelon, and much of the western and northern
United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territorie ...
(though generally absent from the
Great Plains The Great Plains (french: Grandes Plaines), sometimes simply "the Plains", is a broad expanse of flatland in North America. It is located west of the Mississippi River and east of the Rocky Mountains, much of it covered in prairie, steppe, an ...
and from the lowland parts of the
Southeast The points of the compass are a set of horizontal, radially arrayed compass directions (or azimuths) used in navigation and cartography. A compass rose is primarily composed of four cardinal directions—north, east, south, and west—each sepa ...
). It grows mostly in
montane Montane ecosystems are found on the slopes of mountains. The alpine climate in these regions strongly affects the ecosystem because temperatures fall as elevation increases, causing the ecosystem to stratify. This stratification is a crucial f ...
woodlands.


Description

''Corallorhiza maculata'' is a
myco-heterotroph Myco-heterotrophy (from Greek μύκης , "fungus", ἕτερος ', "another", "different" and τροφή ', "nutrition") is a symbiotic relationship between certain kinds of plants and fungi, in which the plant gets all or part of its food fro ...
; it lacks
chlorophyll Chlorophyll (also chlorophyl) is any of several related green pigments found in cyanobacteria and in the chloroplasts of algae and plants. Its name is derived from the Greek words , ("pale green") and , ("leaf"). Chlorophyll allow plants to a ...
and obtains energy by
parasitizing Parasitism is a Symbiosis, close relationship between species, where one organism, the parasite, lives on or inside another organism, the Host (biology), host, causing it some harm, and is Adaptation, adapted structurally to this way of lif ...
the
mycelium Mycelium (plural mycelia) is a root-like structure of a fungus consisting of a mass of branching, thread-like hyphae. Fungal colonies composed of mycelium are found in and on soil and many other substrate (biology), substrates. A typical single ...
of
fungi A fungus ( : fungi or funguses) is any member of the group of eukaryotic organisms that includes microorganisms such as yeasts and molds, as well as the more familiar mushrooms. These organisms are classified as a kingdom, separately from ...
in the family
Russulaceae The Russulaceae are a diverse family of fungi in the order Russulales, with roughly 1,900 known species and a worldwide distribution. They comprise the brittlegills and the milk-caps, well-known mushroom-forming fungi that include some edible ...
. The rhizome and lower stem are often knotted into branched
coral Corals are marine invertebrates within the class Anthozoa of the phylum Cnidaria. They typically form compact colonies of many identical individual polyps. Coral species include the important reef builders that inhabit tropical oceans and sec ...
shapes. The stem is usually red or brown in color, but occasionally comes in a light yellow or cream color. There are no leaves and no photosynthetic green tissues. The stems bear dark red scales and intricate orchid flowers. ''Corallorhiza maculata'' flowers are small and emerge regularly from all sides of the stem. The
sepal A sepal () is a part of the flower of angiosperms (flowering plants). Usually green, sepals typically function as protection for the flower in bud, and often as support for the petals when in bloom., p. 106 The term ''sepalum'' was coined b ...
s are dark red or brown tinged with purple, long and pointed. The side petals are reddish, and the lip petal is bright clean white with deep red spots. It is usually scalloped along its edges and . In some varieties, the lip may be plain white without spots.


Uses

Several Native American groups historically used the orchid's stems dried and brewed as a tea for such maladies as colds, pneumonia, and skin irritation. ''Corallorhiza maculata'' is also the topic of the poem ''On Going Unnoticed'' by Robert Frost.


References


Further reading

* Taylor, D.L. & T.D. Bruns. (1997). Independent, specialized invasions of ectomycorrhizal mutualism by two nonphotosynthetic orchids. ''Proc. Natl. Acad. Sci. USA'' vol. 94 pp. 4510–4515.


External links

* *
Jepson Manual - ''Corallorhiza maculata''
{{Taxonbar, from=Q2996998 maculata Parasitic plants Myco-heterotrophic orchids Orchids of Canada Orchids of Mexico Orchids of the United States Orchids of Guatemala Flora of the Western United States Flora of the Eastern United States Flora of the Northern United States Flora of the Sierra Nevada (United States) Flora of California Natural history of the Peninsular Ranges Plants used in traditional Native American medicine Plants described in 1817 Taxa named by Constantine Samuel Rafinesque Flora without expected TNC conservation status