Question: What is an area that extends in all directions from a plant called?
About the article "Chernobyl disaster", section "The Exclusion Zone".

Candidate passages:
The digestive system begins with Aristotle’s Lantern where the food enters the body of the sea urchin.
An esophagus extends from the mouth through the center of Aristotle’s Lantern, where it joins up with an intestine.
The intestine is arranged in little bundles that adhere to the inside of the test in a counter-clockwise circuit around Aristotle’s Lantern.
Once the intestine gets back to itself, it doubles over itself and reverses directions in a second clockwise direction.
Digestive enzymes are produced by the intestinal walls and breakdown of food is almost completely extracellular.
From the intestine, what is left of the food moves out of the intestine into the short rectum, and out the anus.
"S. droebachiensis" gets its green color from the pigments of its plant food. 
An area originally extending in all directions from the plant is officially called the "zone of alienation".
It is largely uninhabited, except for about 300 residents who have refused to leave.
The area has largely reverted to forest, and has been overrun by wildlife because of a lack of competition with humans for space and resources.
Even today, radiation levels are so high that the workers responsible for rebuilding the sarcophagus are only allowed to work five hours a day for one month before taking 15 days of rest.
Ukrainian officials estimate the area will not be safe for human life again for another 20,000 years.
In 2011 Ukraine opened up the sealed zone around the Chernobyl reactor to tourists who wish to learn more about the tragedy that occurred in 1986.
Monte Cristi National Park ("Parque National Monte Cristi") is a national park on the Caribbean Island of Hispanola that extends from the borders of Haiti to Punta Rucia in the Dominican Republic and covers an area of 550 km².
Its contains coastal lagoons, beaches, mangrove swamps, a 237 m (777 ft) limestone mesa from which can be seen off shore keys and forested slopes of the mesa's northern side.
The area is very dry, receiving just over two inches of rain per year.
The huge mesa provides a habitat for an indigenous plant species called "sabia montecristini" as well as several reptile species.
There are no marked paths in the park. 
FM 1160 starts at Loop 523 in Louise and heads north.
Loop 523 is also called North Street.
The road that extends to the southeast across the Union Pacific Railroad is named Wharton Street.
After going north for through a residential area, FM 1160 crosses US 59 by an overpass.
Access is allowed in all directions between FM 1160 and US 59 via entrance and exit ramps.
North of Louise, FM 1160 turns sharply east for a short distance before continuing north again.
Between US 59 and westbound FM 1300 is a distance of .
For FM 1160 and FM 1300 share the right-of-way before coming to a junction where FM 1300 heads to the east.
From this junction to the crossroads with FM 2546 at Hahn is .
From Hahn to the end of FM 1160 at SH 71 north of New Taiton is .
In its final stretch, the highway goes north before turning sharply east for .
The Raum Rice Dryer is a prominent landmark in the last leg of FM 1160 according to the 1965 USGS Hahn Quadrangle map.  
In mathematics, especially convex analysis, the recession cone of a set formula_1 is a cone containing all vectors such that formula_1 "recedes" in that direction.
That is, the set extends outward in all the directions given by the recession cone.