| Species | Morpholgy | Preview | Code |
|---|---|---|---|
| Ephedra americana EPHEDRACEAE | tricolpate | 310-1-2 | |
| Ephedra californica EPHEDRACEAE | zonocolpate | 310-1-1 | |
| Ephedra foliata EPHEDRACEAE | tricolpate | 310-1-5 | |
| Ephedra trifurca EPHEDRACEAE | tricolpate | 310-1-4 | |
| Ephedra triturca EPHEDRACEAE | 310-1-1b | ||
| Ephedra viridis EPHEDRACEAE | zonocolpate | 310-1-3 |