| Collector | Madsen, J. E. |
| Number | 8247 |
| Collected with | Carlos Chimbo & Carlos Rosales |
| Country | Ecuador |
| Subpart | LOJA |
| County | |
| Locality | |
| Coordinates | 4° 3' 10'' S 79° 35' 17'' W |
| Minimum elevation (m) | 1900 |
| Maximum elevation (m) | 2000 |
| Start date | 2001/08/06 |
| End date | 2001/08/06 |
| Family | Cactaceae |
| Identification | Armatocereus matucanensis Backeb. ex. A. W. Hill |
| Determined by | |
| Identification qualifier | |
| Field notes | Shrubby, mostly 1-4 m tall. Most plants have only a single flower or a few buds at a time. Petaloids pure white. Forming colonies with up to 10 or more plants. |
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