Showing posts with label cholla. Show all posts
Showing posts with label cholla. Show all posts

Sunday, September 19, 2021

Tree Cholla, Extrafloral Nectaries, and Ants

Visiting New Mexico, you can't miss the big cacti. Prickly pears stand two to three feet tall, not hugging the ground like the ones in Colorado. Chollas can be more than eight feet tall.

In July, the tree cholla (Cylindropuntia imbricata) was flower.  With deep rose-purple flowers, it was doubly noticeable. 

tree cholla, Cylindropuntia imbricate
tree cholla, Cylindopuntia imbricata, in flower