9/24/2012

Tumbleweed

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MONGOLIA SAIJIKI

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Tumbleweed

***** Location: Mongolia
***** Season: Various
***** Category: Plant


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Explanation


A tumbleweed is the above-ground part of a plant that, once mature and dry, disengages from the root and tumbles away in the wind. Usually, the tumbleweed is the entire plant apart from the roots, but in a few species it is a flower cluster.
The tumbleweed habit is most common in steppe and desert climates.



The tumbleweed is a diaspore, aiding in dispersal of propagules (seeds or spores). It does this by scattering the propagules either as it tumbles, or after it has come to rest in a wet location. In the latter case, the tumbleweed opens mechanically as it absorbs water; apart from its propagules, the tumbleweed is dead.

Although the number of species with the tumbleweed habit is small, quite a number of these species are common agricultural weeds.
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Worldwide use

North America

. Tumbleweed .


tumbleweed 転がり草 tengarigusa


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Things found on the way



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HAIKU






boring tumbleweed
does not know where to go
at the yard corner


Tavanbayar Lkhagvaa

- Shared by Zaya Nergui -
Joys of Japan, 2012


It will go there wind blows.
Especially in late autumn and spring.


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Related words




***** MONGOLIA SAIJIKI


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