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Henri Grethen (born 16 July 1950) is a politician from Luxembourg.
Grethen was born in Esch-sur-Alzette. He attended school in Echternach and studied in Luxembourg and Liège. In 1980, he became secretary of the Democratic Party,[1] and in 1999, he became Minister for Economy and Transport. He currently works for the European Court of Auditors as representative for Luxembourg. [2]
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Well, that’s interesting to know that Psilotum nudum are known as whisk ferns. Psilotum nudum is the commoner species of the two. While the P. flaccidum is a rare species and is found in the tropical islands. Both the species are usually epiphytic in habit and grow upon tree ferns. These species may also be terrestrial and grow in humus or in the crevices of the rocks.
View the detailed Guide of Psilotum nudum: Detailed Study Of Psilotum Nudum (Whisk Fern), Classification, Anatomy, Reproduction