''Neottia cordata'', the lesser twayblade or heartleaf twayblade, is an

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. Orchids are cosmopolitan plants that are found in almost every habitat on Eart ...

of upland

bog A bog or bogland is a wetland that accumulates peat as a deposit of dead plant materials often mosses, typically sphagnum moss. It is one of the four main types of wetlands. Other names for bogs include mire, mosses, quagmire, and musk ...

s and mires that rarely exceeds in height. It was formerly placed in the genus ''

Listera ''Neottia'' is a genus of orchids. The genus now includes the former genus ''Listera'', commonly known as twayblades referring to the single pair of opposite leaves at the base of the flowering stem. The genus is native to temperate, subarctic ...

'', but molecular phylogenetic studies have shown that ''

Neottia nidus-avis ''Neottia nidus-avis'', the bird's-nest orchid, is a non-photosynthetic orchid, native to Europe, Russia, with sporadic presence in North-Africa, and some parts of the Middle East. Description ''Neottia nidus-avis'' grows to tall and each sh ...

'', the bird's-nest orchid, evolved within the same group., p. 864 It is never very common but may be frequently overlooked because of its small size and a tendency to grow underneath heather on

sphagnum ''Sphagnum'' is a genus of approximately 380 accepted species of mosses, commonly known as sphagnum moss, also bog moss and quacker moss (although that term is also sometimes used for peat). Accumulations of ''Sphagnum'' can store water, since ...

moss. The single erect flower-stem is often tinged red and is clasped near the base by a pair or ovate-

orbicular Orbicular is an adjective meaning "circular" Orbicular may also refer to: * Orbicular leaf, a plant leaf shape * Orbicularis oculi muscle, a muscle around the eye * Orbicularis oris muscle, a muscle around the mouth * Orbicular batfish, a species ...

glossy green leaves. The small flowers which look deceptively simple in structure for an orchid, are purple-green in colour with a somewhat swollen

calyx CALYX, Inc. is a non-profit publisher of art and literature by women founded in 1976 based in Corvallis, Oregon. CALYX publishes both '' CALYX, A Journal of Art and Literature by Women'' twice a year and CALYX Books, which publishes one to three ...

Distribution

It has a circumpolar distribution being found in Europe, Asia and large parts of North America. In the

United Kingdom The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain, is a country in Northwestern Europe, off the coast of European mainland, the continental mainland. It comprises England, Scotlan ...

its distribution is largely western and northern, becoming most common in the western

Highlands of Scotland The Highlands (; , ) is a historical region of Scotland. Culturally, the Highlands and the Lowlands diverged from the Late Middle Ages into the modern period, when Lowland Scots language replaced Scottish Gaelic throughout most of the Lowlan ...

Snowdonia Snowdonia, or Eryri (), is a mountainous region and National parks of the United Kingdom, national park in North Wales. It contains all 15 mountains in Wales Welsh 3000s, over 3000 feet high, including the country's highest, Snowdon (), which i ...

in Wales, and the

Lake District The Lake District, also known as ''the Lakes'' or ''Lakeland'', is a mountainous region and National parks of the United Kingdom, national park in Cumbria, North West England. It is famous for its landscape, including its lakes, coast, and mou ...

in England. (Codes)

Ecology

The flowers produce nectar and are pollinated principally by fungus gnats in the groups

Mycetophilidae Mycetophilidae is a family of small flies, forming the bulk of those species known as fungus gnats. About 3000 described species are placed in 150 genera, but the true number of species is undoubtedly much higher. They are generally found in the ...

and

Sciaridae The Sciaridae are a family of fly, flies, commonly known as dark-winged fungus gnats. Commonly found in moist environments, they are known to be a pest of mushroom farms and are commonly found in household plant pots. This is one of the least s ...

Mycorrhizal A mycorrhiza (; , mycorrhiza, or mycorrhizas) is a symbiotic association between a fungus and a plant. The term mycorrhiza refers to the role of the fungus in the plant's rhizosphere, the plant root system and its surroundings. Mycorrhizae play ...

partners are almost exclusively fungi in the

Sebacinales The Sebacinales are an order of fungi in the class Agaricomycetes. Taxa have a widespread distribution and are mostly terrestrial, many forming mycorrhizas with a wide variety of plants, including orchids Orchids are plants that belong to ...

clade

Serendipitaceae The Serendipitaceae are a family of fungi in the order Sebacinales. Species do not produce visible basidiocarps (fruit bodies), but form septate basidia on thin, trailing hyphae. Species are mycorrhizal, forming associations with a wide range of ...

. There may also be some association with

Ceratobasidiaceae The Ceratobasidiaceae are a family of fungi in the order Cantharellales. All species within the family have basidiocarps (fruit bodies) that are thin and effused. They have sometimes been included within the corticioid fungi or alternatively wit ...

and/or

Tulasnellaceae The Tulasnellaceae are a family of fungi in the order Cantharellales. The family comprises mainly effused (patch-forming) fungi formerly referred to the " jelly fungi" or heterobasidiomycetes. Species are wood- or litter-rotting saprotrophs, b ...

. The fungal gnats are drawn by an odor that is said to resemble dead sea snails.

References

External links

* * * {{Taxonbar, from=Q15502195 Orchids of North America Orchids of Europe Plants described in 1753 Taxa named by Carl Linnaeus Orchids of Asia cordata Orchids of the United States

Distribution

Ecology

See also

References

External links