| Collector | Larsen, K. |
| Number | 31887 |
| Collected with | S. S. Larsen, I. Nielsen & T. Santisuk |
| Country | Thailand |
| Subpart | Chaiyaphum |
| County | |
| Locality | Nong Bua Deng |
| Coordinates | 15° 10' N 101° 30' E |
| Minimum elevation (m) | 300 |
| Maximum elevation (m) | 400 |
| Start date | 1972/08/15 |
| End date | 0/00/00 |
| Family | Fabaceae |
| Identification | Indigofera siamensis Hosseus |
| Determined by | K. Larsen |
| Identification qualifier | |
| Field notes | Dry deciduous dipterocarp forest |
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