| Asteraceae | |
Grindelia rubricaulis var. bracteosa
| (J.T. Howell) Steyerm. | Ann. Missouri Bot. Gard. 21(1): 227 | 1934 |
| Asteraceae | |
Grindelia rubricaulis var. elata
| Steyerm. | Ann. Missouri Bot. Gard. 21(1): 227–228 | 1934 |
| Asteraceae | |
Grindelia rubricaulis var. interioris
| Jeps. | Man. Fl. Pl. Calif. 1021 | 1925 |
| Asteraceae | |
Grindelia rubricaulis var. latifolia
| (Kellogg) Steyerm. | Ann. Missouri Bot. Gard. 21(1): 227 | 1934 |
| Asteraceae | |
Grindelia rubricaulis var. maritima
| Greene | Pittonia 2(12): 289–290 | 1892 |
| Asteraceae | |
Grindelia rubricaulis fo. minor
| Steyerm. | Ann. Missouri Bot. Gard. 21(3): 589 | 1934 |
| Asteraceae | |
Grindelia rubricaulis var. permixta
| Steyerm. | Ann. Missouri Bot. Gard. 21(3): 582 | 1934 |
| Asteraceae | |
Grindelia rubricaulis var. platyphylla
| (Greene) Steyerm. | Ann. Missouri Bot. Gard. 21(1): 227 | 1934 |
| Asteraceae | |
Grindelia rubricaulis fo. pubescens
| Steyerm. | Ann. Missouri Bot. Gard. 21(3): 589 | 1934 |
| Asteraceae | |
Grindelia rubricaulis var. robusta
| (Nutt.) Steyerm. | Ann. Missouri Bot. Gard. 21(1): 227 | 1934 |
| Asteraceae | |
Grindelia rubricaulis var. rubricaulis
| | | |
| Asteraceae | |
Grindelia rubricaulis fo. villosa
| Steyerm. | Ann. Missouri Bot. Gard. 21(3): 590–591 | 1934 |