The sedge is smooth-nosed , or smooth-nosed ( Lat. Carex leiorhyncha ) - a perennial herbaceous plant, a species of the genus Sedge ( Carex ) of the sedge family ( Cyperaceae ).
| Sedge smooth-nosed | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | |||||||||||||||||||||||||
| Scientific classification | |||||||||||||||||||||||||
| |||||||||||||||||||||||||
| International scientific name | |||||||||||||||||||||||||
Carex leiorhyncha CAMey. | |||||||||||||||||||||||||
Content
- 1 Botanical Description
- 2 Distribution and ecology
- 3 Taxonomy
- 4 notes
- 5 Literature
Botanical Description
A light green plant with a short, non-creeping rhizome that forms turf. All parts of the plant or only the membranous side of the vagina is purple-dotted, the latter mostly transversely wrinkled.
Stems 25-50 cm high, rough up.
The leaves are flat, 2-4 mm wide, shorter than the stem.
Spikelets are numerous, up to 30–40 (15–50 [2] ), androgynous, ovate, widespread, with spheniform bracts at the base of each spikelet, collected in an elongated-cylindrical, dense, looser spike 5-10 cm long, lower sometimes short-branched. Scales are ovoid, island, pale green, purple-streaked, narrower and shorter than sacs, with a short axis. Pouches are oblong-ovate or ovate, flat-convex, length (3) 3.2 [2] –3.5 (5 [2] ) mm, yellowish or pale green, purple-dotted upward, on both sides with numerous ribbed veins, spongy thickened at the base, membranous, with a short stalk, with an unclear smooth edge, gradually turning into a flat and smooth, short-toothed nose. Covering leaves are bristle-shaped, rarely narrowly linear, exceeding spikelets (and very rarely the entire inflorescence).
The fruit is 2.5 times shorter and 2 times narrower than the sac. Fruits in June - July.
The number of chromosomes is 2n = 76–80 (Heilborn, 1939).
The species is described from Eastern Siberia.
Distribution and Ecology
The species range covers Eastern Siberia : Eastern Dauria; Far East : south of Zee-Bureinsky district and north-west and south of Ussuri region; East Asia: Northeast and North China, Korea Peninsula.
It grows in moist and marshy, less often dry meadows, in floodplains of rivers, in humid places along forest roads and paths, in moist sparse forests and shrubs.
Taxonomy
Species of sedge smooth-nosed is part of the genus Sedge ( Carex ) of the tribe Cariceae of the subfamily Sytevye ( Cariceae ) of the sedge family ( Apiaceae ) of the order of the Poaceae .
| 17 more families (according to APG II System ) | 13 more tribes (according to APG II System ) | more than 2450 species | ||||||||||||||||||
| order of the melliferous | subfamily Sytevye | clan sedge | ||||||||||||||||||
| Department of Flowering, or Angiosperms | sedge family | tribe Cariceae | view Sedge smooth-nosed | |||||||||||||||||
| 44 more order flowering plants (according to APG II System ) | subfamily (according to APG II System ) | about 100 more births | ||||||||||||||||||
Notes
- ↑ For the conventionality of indicating the class of monocotyledons as a superior taxon for the group of plants described in this article, see the APG Systems section of the Monocotyledonous article .
- ↑ 1 2 3 Egorova T.V. Sedges (Carex L.) of Russia and neighboring states (within the former USSR) . - St. Petersburg, St. Louis: St. Petersburg HCFA and the Missouri Botanical Garden, 1999. - S. 487-489. - 772 p. (Retrieved April 7, 2010)
Literature
- Krechetovich V. I. Genus 235. Sedge - Carex // Flora of the USSR : in 30 tons / chap. ed. V.L. Komarov . - L .: Publishing House of the Academy of Sciences of the USSR , 1935. - T. 3 / ed. volumes B.K. Shishkin . - S. 144. - 636, XXV p. - 5175 copies.
- Egorova T.V. Sedges (Carex L.) of Russia and neighboring states (within the former USSR) . - St. Petersburg, St. Louis: St. Petersburg HCFA and the Missouri Botanical Garden, 1999. - S. 487-489. - 772 p.