Английская Википедия:Calamagrostis stricta

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Шаблон:Short description Шаблон:Speciesbox

Calamagrostis stricta, known as slim-stem small reed grass[1] or narrow small-reed,[2] is a species of bunchgrass in the family Poaceae of the Holarctic Kingdom.

Description

General description

The species is perennial and caespitose with elongated rhizomes and Шаблон:Convert long culms which are also erect. The leaf-sheaths are keelless and have a glabrous surface. It leaf-blades are Шаблон:Convert by Шаблон:Convert and are flat and stiff. The leaf-blade also have a ribbed and pubescent surface with scaberulous margins the apex of which is filiformed. The panicle is inflorescenced and lanceolate with the diameter being Шаблон:Convert by Шаблон:Convert. The main branches of the panicle are appressed and are Шаблон:Convert long while the other branches are terete and scabrous.[3]

Spikelets and lemma

Its spikelets are solitary, lanceolate, and are Шаблон:Convert long. They have pedicelled fertile spikelets which are Шаблон:Convert long, filiformed, and have the same features as the branches. The spikelets also carry fertile one which have a Шаблон:Convert long rhachilla which is pilosed. It callus is hairy with its hairs being Шаблон:Convert long, barely reaching the lemma. Its lemma have a toothed apex which is also truncate and awned. The fertile lemma is Шаблон:Convert long and is both membranous and oblong. The species also have an elliptic and hyaline palea which is Шаблон:Convert long of lemma.[3]

Glumes, flowers and fruits

The glumes are firmer than fertile lemma and are elliptic, membranous, with acute apexes and asperulous surfaces. The flowers have two lodicules and two stigmas. They also have three stamens which are Шаблон:Convert long with it fruits being caryopsis and fusiformed with an additional pericarp. The fruits also have a farinosed endosperm and punctiform hilum.[3]

Distribution

Calamagrostis stricta is found in wetlands throughout Eurasia (including Siberia) and into Mongolia and China. It is also common in Canada and the United States to which it was possibly introduced.[3]

References

Шаблон:Reflist

Шаблон:Taxonbar


Шаблон:Pooideae-stub

  1. Ошибка цитирования Неверный тег <ref>; для сносок WDNR не указан текст
  2. Шаблон:BSBI 2007
  3. 3,0 3,1 3,2 3,3 Шаблон:Cite web