Back Klado PACCMAD Esperanto Clade PACMAD French Klad PACMAD ID Klado ti PACMAD ILO PACMAD 분지군 Korean Клада PACMAD Russian PACMAD klada Serbian Клада PACMAD Ukrainian
| PACMAD clade Temporal range: [1]
| |
|---|---|
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| switchgrass (Panicum virgatum) | |
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Monocots |
| Clade: | Commelinids |
| Order: | Poales |
| Family: | Poaceae |
| Clade: | PACMAD clade |
| Subfamilies | |
The PACMAD clade (previously PACCMAD, PACCAD, or PACC[2]) is one of two major lineages (or clades) of the true grasses (Poaceae), regrouping six subfamilies and about 5700 species, more than half of all true grasses. Its sister group is the BOP clade. The PACMAD lineage is the only group within the grasses in which the C4 photosynthesis pathway has evolved; studies have shown that this happened independently multiple times.[3]
- ^ Berry, E. W. (1914). "The Upper Cretaceous and Eocene floras of South Carolina and Georgia". U.S. Geological Survey Professional Paper. 84. doi:10.3133/pp84.
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