Lesser roundleaved orchid (Platanthera orbiculata, Gen. Sp. Orchid. Pl.: 286 (1835))

Family: Orchidaceae

Author: (Pursh) Lindl.

Bibliography: Gen. Sp. Orchid. Pl.: 286 (1835)

Year: 1835

Status: accepted

Rank: species

Genus: Platanthera

Vegetable: False

Observations: Subarctic America to N. & E. U.S.A.

Description

The Lesser Roundleaved Orchid, scientifically known as Platanthera orbiculata, is a fascinating species belonging to the Orchidaceae family. First described by the botanist Frederick Traugott Pursh and later classified by John Lindley, this orchid has piqued the interest of botanists and plant enthusiasts alike since its mention in “Gen. Sp. Orchid. Pl.: 286” in 1835.

This species has a broad geographical distribution, extending from subarctic regions of America down to the northern and eastern parts of the United States. It typically flourishes in shaded, moist forested areas where it contributes to the delicate biodiversity of the region.

The Lesser Roundleaved Orchid is noteworthy for its charming round leaves, which serve as a distinctive feature setting it apart from other members of its genus. These round leaves lie close to the ground, providing a unique ground-covering appearance. During its blooming period, Platanthera orbiculata showcases small, delicate flowers. The flowers are typically greenish-white, and though they may not be as conspicuous as those of other orchids, their subtle beauty and intricate structure are appreciated by those who take the time to observe them closely.

The ecological significance of the Lesser Roundleaved Orchid extends beyond its aesthetic appeal. As a part of the forest undergrowth, it plays a role in maintaining the health of its habitat. Its presence often serves as an indicator of the well-being of the forest environment.

In conservation terms, the Lesser Roundleaved Orchid’s widespread yet somewhat specific habitat requirements make it a species of interest. Efforts to preserve its natural habitats are vital to ensure that these orchids continue to grace the woodlands with their presence.

In summary, the Lesser Roundleaved Orchid, or Platanthera orbiculata, is a modest yet remarkable member of the Orchidaceae family. With its roots tracing back to the early botanical explorations of North America, this orchid remains a symbol of the diverse flora that thrives in subarctic to temperate forest ecosystems.

Common Names

Eng: lesser roundleaved orchid, lesser round-leaved orchid, round-leaved bog orchid, large round-leaved orchid, large round-leaved rein orchid, small round-leaved orchid
Fra: platanthère à feuilles orbiculaires, habénaire orbiculaire, habénaire à feuilles orbiculaires
En: Lesser roundleaved orchid, Round-leaved Bog Orchid, Lesser round-leaved orchid, Large round-leaved orchid, Large round-leaved rein orchid, Small round-leaved orchid
Fr: Platanthère à feuilles orbiculaires, Habénaire orbiculaire, Habénaire à feuilles orbiculaires

Synonyms

• Lysias orbiculata ((Pursh) Rydb.)
• Orchis orbiculata (Pursh)
• Habenaria orbiculata ((Pursh) Hook.)

Distribution

• Alaska (native)
• Alberta (native)
• British Columbia (native)
• Connecticut (native)
• Idaho (native)
• Illinois (native)
• Indiana (native)
• Maine (native)
• Manitoba (native)
• Maryland (native)
• Masachusettes (native)
• Michigan (native)
• Minnesota (native)
• Montana (native)
• New Brunswick (native)
• New Hampshire (native)
• New Jersey (native)
• New York (native)
• Newfoundland (native)
• North Carolina (native)
• Northwest Territorie (native)
• Nova Scotia (native)
• Ohio (native)
• Ontario (native)
• Oregon (native)
• Pennsylvania (native)
• Prince Edward I. (native)
• Québec (native)
• Rhode I. (native)
• Saskatchewan (native)
• South Dakota (native)
• Tennessee (native)
• Vermont (native)
• Virginia (native)
• Washington (native)
• West Virginia (native)
• Wisconsin (native)
• Wyoming (native)
• Yukon (native)

Additional Images

Leaf

Taken Jun 18, 2021 by Parise Julie (cc-by-sa)

Taken Sep 10, 2020 by alex c (cc-by-sa)

Taken Jan 17, 2021 by g Halima (cc-by-sa)

Flower

Taken Jan 1, 1900 by EOL − Rob Routledge, Sault College, Bugwood.org (cc-by)

Taken Jan 1, 1900 by EOL − Rob Routledge, Sault College, Bugwood.org (cc-by)

Taken Jan 1, 1900 by EOL − Rob Routledge, Sault College, Bugwood.org (cc-by)

Taken Jan 1, 1900 by EOL − Superior National Forest (cc-by)

Taken Jan 1, 1900 by EOL − Superior National Forest (cc-by)

© copyright of the Board of Trustees of the Royal Botanic Gardens, Kew.

Habit

Taken Jan 1, 1900 by EOL − Superior National Forest (cc-by)

Taken Jan 1, 1900 by EOL − Rob Routledge, Sault College, Bugwood.org (cc-by)

Taken Jan 1, 1900 by EOL − Homer D. House, New York State Botanist (public)

Taken Jan 1, 1900 by EOL − Rob Routledge, Sault College, Bugwood.org (cc-by)

Taken Jan 1, 1900 by EOL − Superior National Forest (cc-by)

Sources

• WFO (No URL)
• IPNI (No URL)
• GBIF (https://www.gbif.org/species/2797877)
• POWO (http://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:30220552-2)
• PlantNet (https://identify.plantnet.org/species/the-plant-list/Platanthera orbiculata (Pursh) Lindl.)

Specifications

Growth habit>: Forb/herb

Growth