| Collector | Maxwell, J.F. |
| Number | 76-460 |
| Collected with | |
| Country | Thailand |
| Subpart | Prachuap Khiri Khan |
| County | |
| Locality | Kow Dow, Hua Hin district |
| Coordinates | |
| Minimum elevation (m) | 25 |
| Maximum elevation (m) | 0 |
| Start date | 1976/08/01 |
| End date | 0/00/00 |
| Family | Fabaceae |
| Identification | Macroptilium atropurpureum (DC.)Urb. |
| Determined by | C. Niyomdham |
| Identification qualifier | |
| Field notes | vine, mostly creeping open overgrown field calyx greenish with dull reddish hue; wings dark purple; keel pinkish; leaflets green above, grey-green below |
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