| Name | Cordylanthus kingii subsp. helleri (Ferris) T. I. Chuang & Heckard | 
| Authorship | (Ferris) T. I. Chuang & Heckard | 
| Rank | Subspecies | 
| Placed in | Cordylanthus kingii S. Watson | 
| Citation | 1986 Syst. Bot. Monogr. 10: 81 | 
| Holdings | 9 Specimens held in the Harvard University Herbaria identified as Cordylanthus kingii subsp. helleri (Ferris) T. I. Chuang & Heckard | 
| Identification made in | [no date] (9) | 
