Phtheirospermum tenuisectum Bureau & Franch.
Orobanchaceae
| Collection Number | C. Davidson 13778 |
| Collectors | David E. Boufford, Sharon Christoph, Chris Davidson, Xin-Hui LI & Tao YANG |
| Identified By | D. Boufford (GH) |
| Source | C. Davidson |
| Date | 13 August 2017 |
| Country | China |
| province/SAR | Sichuan |
| prefecture-level | Xiangcheng Xian. |
| Location | Between Xiangcheng and Sandui near the village of Riyin, S of Wuming Shan. West facing slopes and seepages in mixed coniferous forest (Picea, Abies, Pinus). 3550-4000 m. elev. |
| Lat/Long | N 29 08 28 E 99 55 42 |
| Note | On dry to moist slope in coniferous forest. |