The Lar River is located in northern Iran, in the province of Mazandaran. It flows through the Alborz mountain range, and is a tributary of the Haraz River.
| Map of central Alborz | Peaks: | 1 Alam-Kuh |
|---|---|---|
 −25 to 500 m (−82 to 1,640 ft) 500 to 1,500 m (1,600 to 4,900 ft) 1,500 to 2,500 m (4,900 to 8,200 ft) 2,500 to 3,500 m (8,200 to 11,500 ft) 3,500 to 4,500 m (11,500 to 14,800 ft) 4,500 to 5,610 m (14,760 to 18,410 ft) |
2 Azad Kuh | 3 Damavand |
| 4 Do Berar | 5 Do Khaharan | |
| 6 Ghal'eh Gardan | 7 Gorg | |
| 8 Kholeno | 9 Mehr Chal | |
| 10 Mishineh Marg | 11 Naz | |
| 12 Shah Alborz | 13 Sialan | |
| 14 Tochal | 15 Varavašt | |
| Rivers: | 0 | |
| 1 Alamut | 2 Chalus | |
| 3 Do Hezar | 4 Haraz | |
| 5 Jajrood | 6 Karaj | |
| 7 Kojoor | 8 Lar | |
| 9 Noor | 10 Sardab | |
| 11 Seh Hazar | 12 Shahrood | |
| Cities: | 1 Amol | |
| 2 Chalus | 3 Karaj | |
| Other: | D Dizin | |
| E Emamzadeh Hashem | K Kandovan Tunnel | |
| * Latyan Dam | ** Lar Dam |
| Lake Urmia basin | |
|---|---|
| Persian Gulf basin | |
| Oman sea basin | |
| Caspian basin | |
| Gavkhouni basin | |
| Namak Lake basin | |
| Hamun-e Jaz Murian basin | |
| Other | |
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