German Chancellor Angela Merkel and Renate Kuenast of the Green party Buendnis90/Die Gruenen (L) prepare to present flowers to German President Horst Koehler (not pictured) after his reelection for a second five-year term to office, at the Reichstag in Berlin May 23, 2009.

Green party head Eva Glawischnig delivers a speech during a session of the parliament in Vienna May 19, 2009.

Green party head Eva Glawischnig delivers a speech in front of Austrian Finance Minister Josef Proell during a session of the parliament in Vienna May 19, 2009.

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Renate Kuenast, co-leader of the Green party's Parliamentary Group speaks to dairy farmers staging a hunger strike in front of the Chancellery in Berlin on May 14, 2009.

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Renate Kuenast, co-leader of the Green party's Parliamentary Group visits dairy farmers staging a hunger strike in front of the Chancellery in Berlin on May 14, 2009.

Germany's Green Party leaders Cem Oezdemir (L) and Claudia Roth react at the end of their party convention in Berlin May 10, 2009.

Germany's Green Party leaders Claudia Roth (bottom L), Cem Oezdemir (bottom R), Renate Kuenast (top L) and Juergen Trittin attend their party convention in Berlin May 10, 2009.

Germany's Green Party leaders Claudia Roth, Cem Oezdemir, Renate Kuenast, Juergen Trittin and Rebecca Harms (L-R) hold up placards for an upcomming anti nuclear power demonstration during their party convention in Berlin May 10, 2009. The banner reads 'Green turn it.

Germany's Green Party delegates hold up signs at the end of their party convention in Berlin May 10, 2009.

Germany's Green Party delegates hold up signs at the end of their party convention in Berlin May 10, 2009.

Germany's Green Party leaders Cem Oezdemir (L), Yasar Kemal (C), Turkey's one of the leading writers and Claudia Roth attend their party convention in Berlin May 10, 2009.

Germany's Green Party executives Reinhard Buetikofer, Rebecca Harms, Cem Oezdemir, Claudia Roth, Renate Kuenast and Juergen Trittin (L-R) applaud at the end of their party convention in Berlin May 10, 2009.

Germany's Green Party executives Reinhard Buetikofer, Rebecca Harms, Cem Oezdemir, Claudia Roth, Renate Kuenast and Juergen Trittin (L-R) laugh at the end of their party convention in Berlin May 10, 2009.

Germany's Green Party leaders Claudia Roth, Cem Oezdemir, Renate Kuenast and Juergen Trittin (L-R) attend their party convention in Berlin May 10, 2009.

Germany's Green Party delegates vote during their party convention in Berlin May 10, 2009.

Germany's Green Party leaders Claudia Roth (C), Cem Oezdemir (L), and Renate Kuenast attend their party convention in Berlin May 10, 2009.

Germany's Green Party leaders (from L-R) Claudia Roth, Cem Oezdemir, Renate Kuenast, Juergen Trittin and Rebecca Harms applaud during their party convention in Berlin May 10, 2009. The banner reads 'Green turn it. Climate-labour-justice-freedom'.

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(From L) Green party co-leader Claudia Roth, party co-leader Cem Oezdemir, Renate Kuenast, co-leader of the party's Parliamentary Group and Juergen Trittin, deputy leader of the Parliamentary Group attend their party's convention on May 10, 2009 in Berlin.

Germany's Green Party leaders Claudia Roth and Cem Oezdemir (R) attend their party convention in Berlin May 10, 2009.

Germany's Green Party leaders Claudia Roth (L) and Cem Oezdemir talk during their party convention in Berlin May 10, 2009.

Germany's Green Party leader Claudia Roth gives a keynote speech during their party convention in Berlin May 10, 2009. The sign on top reads 'Green turns this'.

Germany's Green Party leader Claudia Roth gives a keynote speech during their party convention in Berlin May 10, 2009. The sign on top reads 'climate'.

Germany's Green Party leader Claudia Roth gives a keynote speech during their party convention in Berlin May 10, 2009. The sign on top reads 'climate'.

Germany's Green Party leaders Cem Oezdemir (R) and Claudia Roth embrace after she gives a keynote speech during their party convention in Berlin May 10, 2009. The sign on top reads 'climate'.

Germany's Green Party leaders Cem Oezdemir (R) and Claudia Roth applaud during their party convention in Berlin May 10, 2009.