| Rubiaceae | |
Galium multiflorum var. coloradoense
| (W. Wight) Cronquist | Intermount. Fl. 4: 530 | 1984 |
| Rubiaceae | |
Galium multiflorum fo. hirsutum
| (A. Gray) Ehrend. | Contr. Dudley Herb. 5(1): 10 | 1956 |
| Rubiaceae | |
Galium multiflorum subsp. hirsutum
| (A. Gray) Ehrend. | Contr. Dudley Herb. 5: 10 | 1956 |
| Rubiaceae | ** |
Galium multiflorum var. hirsutum
| (A. Gray) Jeps. | Man. Fl. Pl. Calif. 962 | 1925 |
| Rubiaceae | |
Galium multiflorum var. hirsutum
| (A. Gray) A. Gray | Syn. Fl. N. Amer. 1(2): 40 | 1884 |
| Rubiaceae | |
Galium multiflorum fo. multiflorum
| | | |
| Rubiaceae | |
Galium multiflorum var. multiflorum
| | | |
| Rubiaceae | |
Galium multiflorum var. parvifolium
| Parish | Zoë 5(4–5): 75 | 1900 |
| Rubiaceae | |
Galium multiflorum subsp. puberulum
| Piper | Contr. U.S. Natl. Herb. 11: 527 | 1906 |
| Rubiaceae | |
Galium multiflorum var. puberulum
| (Piper) H. St. John | Northw. Sci. 2(3): 90 | 1928 |
| Rubiaceae | |
Galium multiflorum var. subalpinum
| (Hilend & J.T. Howell) Cronquist | Intermount. Fl. 4: 531 | 1984 |
| Rubiaceae | |
Galium multiflorum var. watsonii
| A. Gray | Syn. Fl. N. Amer. 1(2): 40 | 1884 |