| Name |
Pronunciation |
Meaning |
| aciculatus | ass-ik-yew-LAY-tus | Needle-like; needle-shaped |
| Wigginsia | wig-GIN-see-uh | Named for Dr. Ira Wiggins |
| Malacocarpus | mal-uh-koh-KAR-pus | From the Greek malakos (soft) and karpos (fruit) |
| Brasilicactus | bra-sil-ih-KAK-tus | Cactus from Brazil |
| Brasiliparodia | bra-sil-ih-par-ROH-dee-uh | Parodia from Brazil (a genus named for Lorenzo Raimundo Parodi, 20th century Argentinian botanist who specialized in native grasses) |
| Neonotocactus | nee-oh-no-to-KAK-tus | New notocactus (genus name from the Greek nótos, south and kaktos (cactus), referring to the plant's native habitat in South America) |
| rubifolia | roo-bih-FOH-lee-uh | Having foliage resembling Rubia (genus name from the Latin ruber, red) |
| rubifolium | roo-bih-FOH-lee-um | Having foliage resembling Rubia (genus name from the Latin ruber, red) |
| Rubia | ROO-bee-uh | From the Latin ruber (red), referring to the reddish dye obtained from the roots of this plant |