Hummingbird Springs Wilderness

The 31,000 acre Hummingbird Springs Wilderness can be found in western Arizona, northwest of Phoenix. 

Colorful Sugarloaf Mountain stands above the other local mountains, forming a large area of bajadas and washes. There are two major ecological zones here - Arizona Upland Sonoran Desertscrub and Lower Colorado River Sonoran Desertscrub. The east side of the Wilderness supports a Jojoba-Mixed Scrub community with the key species being being Jojoba (Simmondsia chinensis). Other plants you can find here include White Thorn Acacia (Acacia constricta), Ironwood (Olneya tesota), Ocotillo (Fouquieria splendens), Teddy Bear Cholla (Cylindropuntia bigelovii) and Brittlebush (Encelia farinosa). 

Rare and endangered animals abound here including Desert Tortoise, Gila Monster, Kit Fox, and Desert Bighorn Sheep.

Location: 

Desert Ironwood

Indicator species of the Sonoran Desert. Wood is extremely dense. The most important nurse plant in the Sonoran Desert region, in terms of shade, cooling for seedlings in summer heat, warmth during frosts, seeds that collect around the tree after flash floods, seed dispersal by the large number of species that seek shelter there. The tree can live to be 1,000 years old, though it rarely grows taller than 35 feet.

Desert Ironwood tree in the Eastern Mojave
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