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Featured Chilean Plant: Yareta

You’re hiking far into the Andes mountain range, high above the sea.  For miles upon miles, all you see is sky, sand, and rocks— wait…except for that lime green amorphous mass right there.  Are you seeing this right? You sure are.  It’s not Oobleck or alien slime, but a plant with clever adaptations, Yareta.

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Yareta (Azorella compacta) is a plant native to South America, present at altitudes between 10,000 and 15,000 ft above sea level.  It’s in the family Apiaceae, same as many familiar plants such as carrots, celery, and parsley.  In contrast to how it may appear, Yareta is an incredibly firm, dense plant with a woody structure covered in many small waxy leaves.

Its foreign appearance is due to the plant’s adaptations to surviving a fairly inhospitable environment where it must endure drought and regular bouts of cold temperatures.  It grows incredibly slowly, at a rate of 1.5 cm in any direction a year to conserve resources needed to produce biomass, and grows dense to conserve the plant’s internal heat and moisture.  The waxy cuticle on the leaves also ensure less water transpires from the plant.  Botanists theorize that Yareta limits itself to several feet in height because it’s slightly warmer clinging close to the ground.

 

Pretty crazy, isn’t it? It’s amazing what forms plants can take to survive.

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