Isoetes hypsophila Hand.-Mazz.
Isoetaceae
| Collection Number | C. Davidson 13800 |
| Collectors | David E. Boufford, Sharon Christoph, Chris Davidson, Xin-Hui LI & Tao YANG |
| Identified By | D. Boufford (GH) |
| Source | C. Davidson |
| Date | 18 August 2017 |
| Country | China |
| province/SAR | Sichuan |
| prefecture-level | Jiulong Xian. |
| Location | Tanggu Xiang. NW of the city of Jiulong. Wuxu Hai (Wuxu Lake). Abies, Picea, Quercus forest with Rhododendron understory and open grazed dry and boggy meadows. 3700-4175 m. elev. |
| Lat/Long | N 29 09 11 E 101 24 25 |
| Note | In shallow water ( 10-20 cm) of the glacial lake. Macrospore punctate. |