| Name |
Pronunciation |
Meaning |
| nigrispinus | ny-gris-SPY-nus | Black spines |
| haseltonianus | haz-el-ton-ee-AY-nus | Named for Scott E. Haselton, first editor of the Cactus and Succulent Journal (from 1929 to 1965) |
| Onagraceae | on-uh-GRAY-see | From the Ancient Greek name for Onagra, once used for fireweed, a member of the evening primrose family |
| gilva | GIL-vuh | Dull yellow |
| argyraeum | ar-jy-ree-um | Shiny silver |
| argyraeus | ar-jy-ree-us | Shiny silver |
| clusiaefolia | kloos-ee-ay-FOH-lee-uh | Having leaves like Clusia |
| ellwangeriana | el-wan-ger-ee-AY-nuh | Named for George Ellwanger, 19th century German-born American nurseryman |
| griseo-argentea | GREE-see-oh ar-JEN-tee-uh | Silvery-gray |
| lavallei | la-val-lay-eye | Named for Pierre Alphonse Martin Lavallée, 19th century French botanist |
| x alpellus | al-PEL-lus | Interspecific hybrid of Aster alpina and A. amellus |
| suspensa | sus-PEN-suh | Hanging or doubtful |
| suspensum | sus-PEN-sum | Hanging or doubtful |
| suspensus | sus-PEN-sus | Hanging or doubtful |
