Lactuca takhtadzhianii Sosn

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< On the list of Rare and Endangered Plants of Armenia

Lactuca

Lactuca, commonly known as lettuce, is a genus of flowering plants in the Sunflower family Asteraceae,


The genus includes about 100 species, distributed worldwide, but mainly in temperate Eurasia.

Its best-known representative is the garden lettuce (Lactuca sativa), with its many varieties. But many are just common weeds. They are annuals or perennials. Their height can vary between 10-180 cm. They form capitula in panicles of yellow, brown or purple flowers in ray florets.

The non-edible species may contain bitter elements. Others contain milky juice.


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Plant in Armenia

Կաթնուկ Թախտաջյանի (“Katnuk Takhtajyani”)

Status

Rare species. Due to the construction of Azat reservoir near Zovashen village, a huge part of the natural habitat was covered with water.

Habitat in Armenia

Grows in the floristic regions of Yerevan and Dareleghis.

Habitat and ecology

Grows in loamy hill slopes.

Biology and potential value

Natural reproduction is decreased. Has huge scientific value.

Measures of protection

A reserve next to village Zovashen should be developed. Included in the Red Book of the former Soviet Union.

External links

http://en.wikipedia.org/wiki/Lactuca