| Geslacht: | Ephedra |
| Auteurs: | L. |
| Nederlandse naam: | Knoopspar |
| Engelse naam: | Joint Fir |
| Familie: | Ephedraceae |
| Ephedra americana Ephedra americana var. andina Ephedra andina zie: Ephedra americana var. andina Ephedra aphylla Ephedra distachya Ephedra distachya subsp. helvetica Ephedra equisetiformis zie: Ephedra major Ephedra equisetina Ephedra foliata Ephedra fragilis Ephedra fragilis subsp. campylopoda Ephedra gerardiana Ephedra gerardiana var. sikkimensis Ephedra helvetica zie: Ephedra distachya subsp. helvetica Ephedra intermedia Ephedra kokanica zie: Ephedra foliata Ephedra major Ephedra minima Ephedra minuta Ephedra monosperma Ephedra nebodensis zie: Ephedra major Ephedra nebrodensis zie: Ephedra major Ephedra nevadensis Ephedra sinica Ephedra tweediana Ephedra viridis Ephedra vulgaris zie: Ephedra distachya |
