Microcaryum pygmaeum (C.B. Clarke) I.M. Johnst.
Boraginaceae
| Collection Number | D. Boufford 44021 |
| Collectors | David E. Boufford, Sharon Christoph, Chris Davidson, Xin-Hui LI & Tao YANG |
| Identified By | Jim Miller (MO), 18 Sept. 2017 |
| Source | C. Davidson |
| Date | 14 August 2017 |
| Country | China |
| province/SAR | Sichuan |
| prefecture-level | Daocheng Xian. |
| Location | Road (Highway S217) from Litang to Sandui Xiang, north-northeast of Sandui; Haizi Shan. Glacial boulder-strewn area with rivulets, small ponds and wet depressions; vegetation dwarf (ca. 0.5 m tall) Salix and Rhododendron and gravelly openings. Granite bedrock. 4380 m. elev. |
| Lat/Long | N 29 20 52 E 100 06 46 |
| Note | In bare, moist sandy-gravelly soil. Calyx green; corolla blue with white or yellowish center. |