Echinocactus polycephalus v. polycephalus
Cottontop cactus
[An article has not been written yet.]
2/28/2010 · Anza-Borrego Desert State Park, California 
2/17/2007 · Anza-Borrego Desert State Park, California 
| Kingdom | Plantae | Plants, but not fungi, lichens, or algae (from Stearn's Botanical Latin) |
| Subkingdom | Tracheobionta | Vascular plants—plants with a “circulatory system” for delivering water and nutrients |
| Division | Magnoliophyta | Flowering plants, also known as angiosperms |
| Class | Magnoliopsida | Dicotyledons—plants with two initial seed leaves |
| Subclass | Caryophyllidae | Cacti, many other succulents, carnivorous plants, and leadworts |
| Order | Caryophyllales | Includes cacti, carnations, amaranths, ice plants, and many carnivorous plants |
| Family | Cactaceae | Succulent (water-storing) plants, often spiny |
| Genus | Echinocactus | From echinos, “hedgehog or spine,” and cactus |
| Species | polycephalus | Many-headed |
| v. | polycephalus | Many-headed |
Echinocactus polycephalus v. polycephalus description by Thomas H. Kent, not updated.
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