Field view of Cenchrus ciliaris or Buffelgrass. |
The most dangerous invasive in Arizona. |
The inflorescence is dark colored and spiny-fluffy. |
More and better views are all over the internet, as this is a dangerous invasive taking over the Sonoran Desert. |
Spiny fascicles with several spikelets each. |
When the seeds fall off, the seedhead remains as a zigzag spike. |
There are many internet sites that show how to identify Buffelgrass. I suggest this one. https://www.desertmuseum.org/buffelgrass/buffelgrass_identification.pdf
See the identification guide above.