| Name | Streptocaulon juventas (Loureiro) Merrill | 
| Authorship | (Loureiro) Merrill | 
| Rank | Species | 
| Placed in | Streptocaulon Wight & Arnott | 
| Citation | 1935 Trans. Amer. Philos. Soc. ser. 2, 24(2): 315 | 
| Holdings | 5 Specimens held in the Harvard University Herbaria identified as Streptocaulon juventas (Loureiro) Merrill | 
| Identification made in | [no date] (3), 2025 (2) |