| Collector | Nielsen, I.C. |
| Number | 1542 |
| 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 | Boraginaceae |
| Identification | Heliotropium strigosum Willd. |
| Determined by | K.Rueangsawang |
| Identification qualifier | |
| Field notes | Dipterocarp forest on sandstone. Tiny erect herb, corolla white with yellow throat |
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