| Collector | Nielsen, I.C. |
| Number | 1522 |
| Collected with | T. Jonganurak, N.Hemrath, J. Rithipheth |
| Country | Thailand |
| Subpart | Sakhon Nakhon |
| County | |
| Locality | Phu Phaan National Park |
| Coordinates | 16° 58' N 104° 2' E |
| Minimum elevation (m) | 400 |
| Maximum elevation (m) | 400 |
| Start date | 2004/08/06 |
| End date | 2004/08/06 |
| Family | Amaranthaceae |
| Identification | Psilotrichum ferrugineum Moq. |
| Determined by | Larsen,K. |
| Identification qualifier | |
| Field notes | Dry Dipterocarp Forest on sandstone. Herb ca. 25 cm tall; in half-shade. Inflorescence green. |
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