To have a gaspan ( lat. Cyperus haspan ) is a perennial herb ; species of the genus Syt ( Cyperus ) of the sedge family ( Cyperaceae ).
| Clean Gaspan | |||||||||||||||||||||||||
 Clean the gaspan. General view of the plant | |||||||||||||||||||||||||
| Scientific classification | |||||||||||||||||||||||||
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| International scientific name | |||||||||||||||||||||||||
Cyperus haspan L. , 1753 | |||||||||||||||||||||||||
Content
Distribution and Ecology
The range of the species includes tropical, subtropical and temperate regions of Central Asia , Indochina , Japan , America , Africa and Australia .
Grows in rice fields.
Botanical Description
Stems 10-50 cm, triangular in the upper part.
The leaves are linear, flat, smooth, 3-5 mm wide, shorter than the stem.
The inflorescence is a complex umbrella with 4–12 primary rays (4–12 cm long) and 3–8 secondary rays, often giving third-order rays ending in 3–10 spikelets . Spikelets 10-15 mm long and 1-2 mm wide, highly compressed, consist of 10-40 flowers . Covering scales are ovoid, blunt, brownish-light green or reddish-brown, 1-1.5 mm long. Stamens 3 or 2, stigma 3.
The nutlet is indistinct, light brown or yellowish.
Taxonomy
| 17 more families (according to APG II System ) | about 600 species | ||||||||||||
| order of the melliferous | Rod Syt | ||||||||||||
| Department of Flowering, or Angiosperms | sedge family | View Gaspan | |||||||||||
| 44 more order flowering plants (according to APG II System ) | before 120 births | ||||||||||||
Literature
- Shishkin B.K.Syat - Cyperus // Flora of the USSR / Botanical Institute of the USSR Academy of Sciences; Editor-in-chief of Acad. V. L. Komarov; The editor of the third volume is B.K. Shishkin. - L .: Publishing House of the Academy of Sciences of the USSR, 1935. - T. III. - S. 16.
Links
- Clean Gaspan (English) : information on the GRIN website. (Retrieved September 30, 2009)
- The Gaspan is available on the Encyclopedia of Life (EOL) website (Retrieved September 30, 2009) .
- ↑ For the conventionality of indicating the class of monocotyledons as a superior taxon for the plant group described in this article, see the APG Systems section of the Monocotyledonous article .