| Collector | Larsen, K. |
| Number | 41983A |
| Collected with | S. S. Larsen, W. Nanakorn, W. Ueachirakan & P. Sirirugsa. |
| Country | Thailand |
| Subpart | NAN |
| County | |
| Locality | Sila Peth waterfall, c 4o km N of Nan |
| Coordinates | 19° 10' N 100° 52' E |
| Minimum elevation (m) | 350 |
| Maximum elevation (m) | 350 |
| Start date | 1990/12/14 |
| End date | 1990/12/14 |
| Family | Fabaceae |
| Identification | Neustanthus phaseoloides var. phaseoloides (Rock.) Benth. |
| Determined by | Ashley N. Egan |
| Identification qualifier | |
| Field notes | var. subspicata (Bent.) Maesen |
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