The Sukhoi Su-57 is a multirole fighter aircraft.
SU-57, Su-57, or Su57 may also refer to:
- T48 Gun Motor Carriage, a U.S. WWII self-propelled anti-tank gun designated as SU-57 (Samokhodnaya ustanovka 57) under Soviet service in lend-lease
- ItPsv SU-57, the Finnish designation for the Soviet ZSU-57-2 self-propelled anti-aircraft gun
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