Buxbaum sedge ( lat.Carex buxbaumii ) is a perennial herbaceous species of the genus Sedge ( Carex ) of the sedge family ( Cyperaceae ).
| Sedge buxbaum | |||||||||||||||||||||||||
 Inflorescence, Northwest Poland | |||||||||||||||||||||||||
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Carex buxbaumii Wahlenb. , 1803 | |||||||||||||||||||||||||
The species is named after Johann Christian Buchsbaum (1693-1730), the famous German naturalist who worked in Russia for a long time; researcher of Southeast Europe , Asia Minor and the Caucasus , the first academician of botany and natural history at the St. Petersburg Academy of Sciences .
Botanical Description
2 - Carex buxbaumii
A gray-green plant with long creeping, loose-leafed rhizomes that give hard, long shoots .
The stems are strong, upstairs possibly roughened, 30–70 cm tall [2] , clad at the base with purple, mesh-split, leafless sheaths .
The leaves are harsh, keeled down, 2-3 mm wide, long pointed, shorter than the stem.
Inflorescence 5-10 cm long from (3 [2] ) 4-5 spikelets , spaced, straight, possibly dense. The upper spikelet is gynecandric, club-shaped or oblong-ovate, 1-2 cm long [2] , down to ¼ — ⅓ of its length with stamen flowers; the rest are pistillate , lateral, including 2-3 (4), ovate or oblong-ovate, (0.5 [2] ) 1-1.5 (2) cm long, (6) 8 [2] —10 mm in diameter, almost sessile or on short, 5-8 mm long legs. Covering scales are ovate-lanceolate, roundish or sharply cut at the top, possibly with a long awl-shaped rough awn, rusty-brown, brown or purplish-brown, with 1-3 greenish veins , along the middle vein with papilli, longer than sacs. Sacks in the cross section are obtuse-trihedral, non-blown, elliptical, (3 [2] ) 4–4.5 mm long, greenish-whitish, densely covered with rather large papillas over the entire surface, thin-skinned, with 4–5 veins slightly thickened, with the bases and at the top are rounded, smooth along the edge, with a very short, notched-two-toothed nose with short but distinct bent teeth. Stigma 3. The lower covering sheet is linear, equal to or longer than the inflorescence.
The fruit is trihedral, without karpofor. Fruits in May-July.
The number of chromosomes is 2n = 74, 100.
The view is described from Germany and Denmark .
Distribution
Western Europe Northern Europe : Scandinavia , including Arctic; The Arctic part of Russia: Murman ; Baltic States : Estonia , Latvia , Lithuania ( Klaipeda region ); Northern and middle parts of the European part of Russia ; Ukraine : the north-western part of the Carpathians , the vicinity of Vinnitsa and Trostyants ; Caucasus : Ciscaucasia , upper reaches of the Maruhi River; Western Siberia : south; Eastern Siberia : the basin of the upper Yenisei , Cisbaikalia, Transbaikalia (the lower reaches of the Selenga River ), Yakutia ( Lena Valley near the mouth of the Biryuk River); Kazakhstan northern half of North America , including Greenland (extreme south); North Africa (far north of Algeria ); maybe Australia .
It grows in marshy meadows , sedge-hypnum bogs , along the banks of rivers and lakes; on the plain and in the forest belt of mountains.
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 6 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. 276-277. - 636, XXV p. - 5175 copies.
Literature
- 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. 389-390. - 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. 130.
- 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. 276-277. - 636, XXV p. - 5175 copies.