| Collector | Holm-Nielsen, L. B. |
| Number | 16664 |
| Collected with | |
| Country | Ecuador |
| Subpart | PICHINCHA |
| County | |
| Locality | Río Guayllabamba, 1 km from the Pan-American Highway upstream. Interandine dry thorn scrub with Schinus. |
| Coordinates | 0° 3' S 78° 23' W |
| Minimum elevation (m) | 2200 |
| Maximum elevation (m) | 2200 |
| Start date | 1979/04/04 |
| End date | 1979/04/04 |
| Family | Fabaceae |
| Identification | Caesalpinia spinosa (Molina)Kuntze |
| Determined by | G. P. Lewis, 1985 |
| Identification qualifier | |
| Field notes | Tree 5 m. Petals yellow, turning dark orange. |
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