| Collector | Holm-Nielsen, L. B. |
| Number | 20328 |
| Collected with | Jaramillo, J. & Coello, F. |
| Country | Ecuador |
| Subpart | CHIMBORAZO |
| County | |
| Locality | Santa Rosa, Pan-American Highway, 20 km S of Chunchi. Steep rocky slope and scrub forest. |
| Coordinates | 2° 22' S 78° 55' W |
| Minimum elevation (m) | 2750 |
| Maximum elevation (m) | 2750 |
| Start date | 1979/09/21 |
| End date | 1979/09/21 |
| Family | Scrophulariaceae |
| Identification | Castilleja arvensis Schlecht. & Cham. |
| Determined by | N. H. Holmgren |
| Identification qualifier | |
| Field notes | Tips of bracts orange. |
This record