Umandejua

Mimea ya **Umandejua** inaainishwa kwenye jenasi *Drosera* ambayo ni mojawapo ya jenasi kubwa zaidi ya mimea ambayo hula nyama. Jenasi ya *Drosera* ina angalau spishi 194. Mimea hii ya familia ya Droseraceae huwavutia, kuwashika na kuwaua wadudu kwa kutumia viungo vyenye kuzalisha maji yenye gundi. Wadudu hawa hupendwa na umandejua kwa sababu mmea wenyewe unamea katika ardhi isiyokuwa na rotuba ya kutosha. Spishi mbalimbali, ambazo huwa na maumbo tofauti, hupatikana katika mabara yote isipokuwa Bara la Antaktiki.

## Sifa za mmea
Umandejua ni mimea inayodumu kwa miaka nyingi (lakini baadhi ya spishi hudumu kwa kipindi cha mwaka mmoja tu). Ina maua madogomadogo yaliyosimama ambayo ni karibu sm 1 na m 1 kwa urefu ikitegemea ni spishi ipi. Spishi zinazopanda huwa na shina zinazoweza kuwa ndefu sana hata kufikia mita 3, kama vile *D. erythrogyne*.

Imebainika kuwa mmea wa umandejua unaweza kuishi kwa kipindi cha hata miaka 50. Jinasi hii imezoea zaidi kupata chakula kupitia kula wadudu kiasi kwamba enzaimu ya aina ya naitreti riadaktesi) ambayo kawaida hutumiwa na mimea kupandishia nitrati haipo.

## Picha

Image:DroseraKenneallyiFlora.jpg|Maua ya umande jua wa spishi ya D. kenneallyi
Image:Drosera capensis bend.JPG|Kusonga kwa matawi katika spishi moja ya umande jua
Image:Drosera rotundifolia leaf1.jpg|Matawi ya umande jua wa kawaida (Drosera rotundifolia)
Image:DroseraFiliformisTracyi.JPG|Mdudu aliyekamatwa katika umande jua

## Maandiko ya chini
## Marejeo
Vitu vingi katika makala haya vinatoka katika  tafsiri ya Kijerumani ya makala haya ya wikipedia article (retrieved 30 Aprili 2006).
* Barthlott, Wilhelm; Porembski, Stefan; Seine, Rüdiger; Theisen, Inge: *Karnivoren*. Stuttgart, 2004, ISBN 3-8001-4144-2
* Correa A., Mireya D.; Silva, Tania Regina Dos Santos: *Drosera (Droseraceae)*, in: Flora Neotropica, Monograph 96, New York, 2005
* Darwin, Charles: *Insectivorous Plants*, 1875
* Lowrie, Allen: *Carnivorous Plants of Australia*, Vol. 1-3, English, Nedlands, Western Australia, 1987 - 1998
* Lowrie, Allen: *A taxonomic revision of Drosera section Stolonifera (Droseraceae) from south-west Western Australia*, 2005, Nuytsia 15(3):355-393. (Online: http://science.calm.wa.gov.au/nuytsia/15/3/355-394.pdf )
* Olberg, Günter: *Sonnentau*, Natur und Volk, Bd. 78, Heft 1/3, pp.&nbsp;32–37, Frankfurt, 1948
* Rivadavia, Fernando; Kondo, Katsuhiko; Kato, Masahiro und Hasebe, Mitsuyasu: *Phylogeny of the sundews, *Drosera* (Droseraceae), based on chloroplast rbcL and nuclear 18S ribosomal DNA Sequences*, American Journal of Botany. 2003;90:123-130. (Online: http://www.amjbot.org/cgi/content/full/90/1/123)
* Seine, Rüdiger; Barthlott, Wilhelm: *Some proposals on the infrageneric classification of Drosera L.*, Taxon 43, 583 - 589, 1994
* Schlauer, Jan: *A dichotomous key to the genus Drosera L. (Droseraceae)*, Carnivorous Plant Newsletter, Vol. 25 (1996)

## Viungo vya nje
* A key to *Drosera* species, with distribution maps and growing difficulty scale 
* A virtually exhaustive listing of *Drosera* pictures on the web 
* International Carnivorous Plant Society
* Carnivorous Plant FAQ
* Listing of scientific *Drosera* articles online (terraforums.com) 
* The Sundew Grow Guides 
* Sundew images from smugmug 
* Botanical Society of America, *Drosera* - the Sundews 

Jamii:Fungu na jamaa