Hairy sediment ( lat.Carex lasiocarpa ) is a perennial herbaceous plant, a species of the genus Sedge ( Carex ) of the sedge family ( Cyperaceae ).
| Sedge hairy | |||||||||||||||||||||||||
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Carex lasiocarpa Ehrh. , 1784 | |||||||||||||||||||||||||
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Content
- 1 Botanical Description
- 2 Distribution
- 3 Systematics
- 4 notes
- 5 Literature
- 6 References
Botanical Description
1 - Carex lasiocarpa
A gray-green plant with creeping rhizomes forming turf.
The stems are thin, but strong, obscurely trihedral, upward almost smooth, 50-100 cm tall [2] , surrounded at the base by dense, glossy, reddish-brown, yellowish or dark purple, mesh-splitting leaf sheaths.
The leaves are long, grooved, 1-2 mm wide, slightly thickened downward, equal to the stem. The vagina and platelets are leafless.
Upper (1) 2-5 spikelets staminate , close, linear, 2-4 cm long [2] , with lanceolate, sharp, rusty-brown scales; the remaining 2-4 (5), pistillate , many and possibly densely flowered , spaced, cylindrical, 1-3 cm long [2] , 0.8 cm wide [2] , on very short legs, sessile or almost sessile, straight. Scales of pistillate spikelets oblong-ovate and lanceolate, brown, light in the middle, with three veins, shorter than sacs, equal to or slightly longer, with short or long awn, narrow-membered to the edges. Pouches are almost rounded in cross section, oblong-ovate or ovate-conical, leathery, (4) 4.5 [2] —5 mm long, with numerous thickened veins , yellowish-green, densely pubescent, with a short stalk, with a short, 0 , 7-1 (1.2) mm, short-toothed spout with teeth 0.5-0.9 mm long; noses pubescent and only at the front near the mouth naked, completely naked, or only ciliate-hairy at the edges. Stigma 3. The lower bract is mostly with a long vagina (rarely without a vagina) and with a plate exceeding the inflorescence .
Fruits in May-June.
The number of chromosomes is 2n = 56.
The view is described from Sweden and Germany .
Distribution
Northern Europe , including Arctic Scandinavia ; Central Europe The Arctic part of Russia : Murman , the southeastern part of the Bolshezemelskaya tundra ; European part of Russia : except for the lower Volga ; Caucasus : west of Ciscaucasia , west and center of the Greater Caucasus , Kobuleti , Lake Sevan and Central Transcaucasia ; South Ural ; Western Siberia : south of 64 ° north latitude and in the Sukhoi Poluya basin; Eastern Siberia : south of 62 ° north latitude; Far East : Amur basin , Primorsky Territory , the southern half of Kamchatka , Sakhalin ; Kazakhstan : West, Far North, and Northern Balkhash ; East Asia : Northeast China , North of the Korean Peninsula , Honshu and Hokkaido Islands; North America : south of Alaska and approximately between 60 and 40 ° north latitude, mainly in the eastern part.
It grows on mossy, mainly sphagnum, less often grass-sedge bogs , marshy shores of water bodies, in marshy forests , and spindles; often forms thickets.
Systematics
Within the species, three varieties are distinguished [3] :
- Carex lasiocarpa var. americana Fernald - from subarctic America to the northern and central western states of the USA and Mexico ( Bahia Tortugas )
- Carex lasiocarpa var. lasiocarpa - temperate regions of Eurasia
- Carex lasiocarpa var. occultans (Franch.) Kük. - sedge hiding; Korea, from Sakhalin to Japan
Variety Carex lasiocarpa var. occultans (Franch.) Kük. differs from the typical shorter and less dense pubescence of the sacs, as well as the shape of leaf blades, the color of the sheaths of the leaves at the base of the stems and the color of the pubescence of the sacs. Variety Carex lasiocarpa var. americana Fernald differs from the typical one in the smaller size of the sacs (up to 4, and not up to 5 mm in length), more separate noses with shorter teeth.
Notes
- ↑ 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 .
- ↑ 1 2 3 4 5 Krechetovich V.I. Genus 235. Sedge - Carex // Flora of the USSR : in 30 t / h. ed. V.L. Komarov . - L .: Publishing House of the Academy of Sciences of the USSR , 1935. - T. 3 / ed. volumes B.K. Shishkin . - S. 416-417. - 636, XXV p. - 5175 copies.
- ↑ Carex lasiocarpa in the Kew Botanical Gardens database, UK (Retrieved April 30, 2010)
Literature
- Egorova T.V. Osoki (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. 166-168. - 772 p.
- Arctic flora of the USSR. Vol. III / Comp. T.V. Egorova, V.V. Petrovsky, A.I. Tolmachev, V.A. Yurtsev; Ed. A.I. Tolmacheva. - L .: Nauka, 1966 .-- S. 153.
- 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. 416-417. - 636, XXV p. - 5175 copies.
- Gubanov I.A. et al. 251. Carex lasiocarpa Ehrh. - Hairy sedge // Illustrated identifier of plants in Central Russia. In 3 t . - M .: T-in scientific. ed. KMK, Institute of Technology. ISS., 2002. - T. 1. Ferns, horsetails, crowns, gymnosperms, angiosperms (monocotyledons). - S. 355. - ISBN 8-87317-091-6 .