Atriplex rosea
Rose signaling ( Atriplex rosea)
The Rose Alarm ( Atriplex rosea ) is a plant of the genus Report ( Atriplex ) in the family of Amaranthaceae ( Amaranthaceae ). The Rose alarm was originally native to the Near East and southern Europe spread by cultivation or introduction in many areas of the world.
- 6.1 Notes and references
Description
Vegetative characteristics
The Rose Reporting is an annual herbaceous plant. Your upright stem is at a height of 20 to 90 cm sparrig branches with whitish- yellow branches. The change-constant leaves have a length of 6 to 7 cm (up to 8 cm) and a width of 5 cm. Your oberseits gray green above, gray leaf blade is usually rhombic and sharply toothed on the edge.
Inflorescence and flower
The Rose Reporting is monoecious getrenntgeschlechtig ( monoecious ). In short, translucent aged men total inflorescences are in the armpit of bracts protruding, knäuelige partial inflorescences, each with five to ten flowers at the 1 to 2 mm thick inflorescence axis. The male flowers have four to five bloom ( tepals ) and five stamens. The female flowers are surrounded by two rhombic continue reading, bloom are not present, they contain only a vertical ovary.
The heyday of the Rose alarm ranges in Germany from July to September. The pollination is generally due to the wind, but is also possible by insects.
Fruit and seeds
The vertical fruit is enveloped by the to about the middle intergrown with each other continue reading, the basal cartilaginous harden the fruit time and there are veined significantly. The sedentary or short- stalked bracts are at a length of 5-7 mm (up 10 mm) rhombic, entire or assign each hand on one to three teeth. On her back they sometimes carry small nodular appendage.
The membranous pericarp enclosing the seed. There are red, slightly convex to flat seeds having a diameter of 1.5 to 2 mm, and light brown seed flat to concave having a diameter from 1.7 to 2 mm ( Heterokarpie ). While the light brown seeds are highly viable, germination of red seeds is slowed.
Chromosome number
The chromosome number is 2n = 18
Photosynthetic
The Rose Reporting is a C4 plant with Kranz anatomy.
Ecology
The Rose Reporting is used by the caterpillars of the large head moth Pholisora catullus and Bläulings Brephidium exilis as food.
Occurrence and risk
The original distribution area of the Rose is reporting the Middle East and Southern Europe. As a archaeophyte it has become native to Europe, North Africa and Western Asia for centuries. Introduced it also occurs in North America and South America.
The area of this kind has become much smaller in recent decades: while they are still often occurred prior to the beginning of the 20th century in Russia and Ukraine, it has become very rare there since the 1930s. They probably became extinct in Central Russia, Belarus, the Baltic States and parts of Ukraine. The decrease is probably related to the end of the cultivation of this kind, so that it can no longer run wild from cultivated areas.
In Austria, the type is very rare, especially in the Pannonian area in the hill and altitude level on dry, nutrient-rich sand and clay soils and locations of salt. The natural resources are limited to Vienna, Lower Austria and Burgenland, Salzburg takes the species to only impermanent. It is regarded as threatened with extinction.
In Germany the Rose Reporting is a rare archaeophyte, in East Germany may also endemic. ( The nationwide Red List of Threatened Species rated this way only as neophytisch or inconsistent. ) In Saxony, the Rose Reporting is considered critically endangered ( Red List 1) and in Saxony -Anhalt and Thuringia as endangered. After Sukhorukov, there will be no new localities in Germany. In contrast, in German floras the Rose Reporting is described as rare, but in places regularly occurring.
The Rose Alarm colonized by the level up to the hill stage dry, nitrogen-rich waste places and weeds along roadsides or corridors to rubble. On the coast it also grows in the drift line. In the system of plant sociology has its main occurrence in association Sisymbrion and the Association Salsolion, even in Chenopodion rubri and Cakiletea maritimae companies. It is an indicator plant for full sunlight and temperate steppe climate.
System
The Rose Alarm ( Atriplex rosea) counts as a C4 plant within the genus Atriplex to the C4 Atriplex clade.
The first publication of Atriplex rosea was made in 1763 by Carl Linnaeus in Species Plantarum, Editio Secunda 2, p 1493rd
Synonyms of Atriplex rosea L. are by Sukhorukov (2007) Atriplex alba Scop. (nom. invalid. ), Atriplex axillary Ten., Atriplex besseriana Roem. & Schult., Atriplex laciniata Bieb. , Atriplex monoica Moench, Schizotheca rosea (L.) Fourr. (nom. invalid. ), Spinacia fera Pall. and Teutliopsis rosea (L.) Celak. As more synonyms Atriplex foliolosa link, Atriplex rosea are subsp. foliolosa (Link) Cout. and Chenopodium roseum (L.) EHLKrause specified.
Use
The Rose alarm was cultivated until about the beginning of the 20th century as a food plant. Moreover, this type was used for the extraction of potash.