| Name | Juncus effusus var. compactus Lejeune & Courtois | 
| Authorship | Lejeune & Courtois | 
| Rank | Variety | 
| Placed in | Juncus effusus Linnaeus | 
| Citation | 1831 Comp. Fl. Belg. 2: 22 | 
| Holdings | 45 Specimens held in the Harvard University Herbaria identified as Juncus effusus var. compactus Lejeune & Courtois | 
| Identification made in | [no date] (45) |