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Ixiolirion tataricum
Scientific classification
Kingdom:Plantae
(unranked):Angiosperms
(unranked):Monocots
Order:Asparagales
Family:Ixioliriaceae
Genus:Ixiolirion
Species:I. tataricum
Ixiolirion tataricum
Ixiolirion
Ixiolirionis a small genus of perennial cormous herbs in theIxioliriaceaefamily, with about 3 species widely distributed in central and southwestern Asia, and extending into China. According to the Flora of China this genus also occurs in Egypt. While cultivated for well over a century, and available where better selections of Dutch bulbs are sold in the fall, this highly ornamental genus is rarely seen in cultivation.



Ixiolirion tataricumFlowering the end of May and early June, slender plants growing to about 12" tall put on a fine display of royal blue trumpets, reminiscent ofTriteleia. Many species names of Ixiolirion can be found, but most are reduced to synonym with I. tataricum, with two varieties described: var. ixiolirioides and var. tataricum. There is also a Chinese endemic species, Ixiolirion songaricum.
 

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علف هرز باغات به حساب میاد با سیستم فوتوسنتزی C3

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Mexican Daisy (Erigeron karvinskianus)

Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Asterids
Order: Asterales
Family: Asteraceae
Tribe: Astereae
Genus: Erigeron
Species: E. karvinskianus
Binomial name Erigeron karvinskianus
Common name: Mexican daisy, Profusion, seaside daisy.
This wildflower is native to much of South America and also Mexico. Mexican daisy may be nice to look at, but is considered a weed because of its ability to form dense mats of ground cover, particularly in the North Island and the upper South Island. These clumps smother native vegetation and, as they die off, pave the way for other invasive weed species, such as climbing vines. In addition, it is able to survive and spread in a huge range of habitats, from intact stands of bush to riverbeds and herbfields, and can tolerate anything from moderate shade to full sun.
It has pretty daisy-like flowers which range from white to white-purple to pink, with a yellow to brownish-yellow central disc. The flowers typically appear throughout the year, and are followed by masses of fluffy seeds. Mexican daisy is a sprawling perennial daisy that grows up to 40cm tall, with long thin stems. Its leaves are small and narrow, and give off a distinct fragrance when crushed.​
 
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