PACMAD clade
| PACMAD clade | |
|---|---|
| |
| 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[1]) 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.[2]
The name of the clade comes from the first initials of the included subfamilies
monophyletic group
with a distinct ecology.
Phylogeny of the PACMAD clade, with
photosynthetic pathways for each subfamily:[2]
| Poaceae |
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||
References
Grasses (Poaceae or Gramineae) | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Morphology |  | ||||||||||
| Ecology | |||||||||||
| Subfamilies |
| ||||||||||
| Uses |
| ||||||||||
| This Poaceae article is a stub. You can help Wikipedia by expanding it. |