''Cypripedium parviflorum'', commonly known as yellow lady's slipper or moccasin flower, is a
lady's slipper
Cypripedioideae is a subfamily of orchids commonly known as lady's slipper orchids, lady slipper orchids or slipper orchids. Cypripedioideae includes the genera ''Cypripedium, Mexipedium, Paphiopedilum, Phragmipedium'' and ''Selenipedium''. They ...
orchid
Orchids are plants that belong to the family Orchidaceae (), a diverse and widespread group of flowering plants with blooms that are often colourful and fragrant.
Along with the Asteraceae, they are one of the two largest families of flowering ...
native to
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 ...
.
It is widespread, ranging from
Alaska
Alaska ( ; russian: Аляска, Alyaska; ale, Alax̂sxax̂; ; ems, Alas'kaaq; Yup'ik: ''Alaskaq''; tli, Anáaski) is a state located in the Western United States on the northwest extremity of North America. A semi-exclave of the U.S., ...
south to
Arizona
Arizona ( ; nv, Hoozdo Hahoodzo ; ood, Alĭ ṣonak ) is a state in the Southwestern United States. It is the 6th largest and the 14th most populous of the 50 states. Its capital and largest city is Phoenix. Arizona is part of the Fou ...
and
Georgia
Georgia most commonly refers to:
* Georgia (country), a country in the Caucasus region of Eurasia
* Georgia (U.S. state), a state in the Southeast United States
Georgia may also refer to:
Places
Historical states and entities
* Related to the ...
. It grows in fens, wetlands, shorelines, and damp woodlands.
Taxonomy
''C. parviflorum'' is a highly variable species, which is a result of both hybridization and
phenotypic plasticity
Phenotypic plasticity refers to some of the changes in an organism's behavior, morphology and physiology in response to a unique environment. Fundamental to the way in which organisms cope with environmental variation, phenotypic plasticity encompa ...
.
Four varieties are widely recognized. They are:
*''C. parviflorum ''var''. exiliens''
Sheviak –
Alaska
Alaska ( ; russian: Аляска, Alyaska; ale, Alax̂sxax̂; ; ems, Alas'kaaq; Yup'ik: ''Alaskaq''; tli, Anáaski) is a state located in the Western United States on the northwest extremity of North America. A semi-exclave of the U.S., ...
*''C. parviflorum'' var. ''makasin''
(Farwell) Sheviak – commonly called the "northern yellow lady's-slipper";
widely distributed over much of
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 ...
and the northern United States
*''C. parviflorum'' var. ''parviflorum'' – commonly called the "small yellow lady's-slipper";
southern part of the species range, from eastern
Nebraska
Nebraska () is a state in the Midwestern region of the United States. It is bordered by South Dakota to the north; Iowa to the east and Missouri to the southeast, both across the Missouri River; Kansas to the south; Colorado to the southwe ...
and eastern
Oklahoma
Oklahoma (; Choctaw language, Choctaw: ; chr, ᎣᎧᎳᎰᎹ, ''Okalahoma'' ) is a U.S. state, state in the South Central United States, South Central region of the United States, bordered by Texas on the south and west, Kansas on the nor ...
east to
Virginia
Virginia, officially the Commonwealth of Virginia, is a state in the Mid-Atlantic and Southeastern regions of the United States, between the Atlantic Coast and the Appalachian Mountains. The geography and climate of the Commonwealth ar ...
and
New Hampshire
New Hampshire is a U.S. state, state in the New England region of the northeastern United States. It is bordered by Massachusetts to the south, Vermont to the west, Maine and the Gulf of Maine to the east, and the Canadian province of Quebec t ...
*''C. parviflorum'' var. ''pubescens''
(Willdenow) O. W. Knight – commonly called the "large yellow lady's-slipper";
[ very widespread across much of United States, ]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 ...
, and St. Pierre & Miquelon; treated by many authors as a distinct species, ''Cypripedium pubescens''
File:Cypripedium parviflorum Orchi 014.jpg, ''C. parviflorum'' var. ''parviflorum'', showing pubescent bract and dark maroon sepals
File:Cypripedium parviflorum pubescens.jpg, ''C. parviflorum'' var. ''pubescens'', showing yellow-green sepals spotted with maroon
References
External links
*
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parviflorum
Orchids of Canada
Orchids of the United States
Orchids of California
Orchids of Kentucky
Orchids of Maryland
Flora of the Eastern United States
Flora of the Western United States
Flora of Alaska
Flora of the Appalachian Mountains
Flora of the Rocky Mountains
Flora of Saint Pierre and Miquelon
Flora of the Sierra Nevada (United States)
Plants described in 1791
Taxa named by Richard Anthony Salisbury
Flora without expected TNC conservation status
{{Cypripedioideae-stub