Friday, December 14, 2012

A fruit you don't see every day

Photo by Debbie Bird 11/27/2012
Debbie showed us this Limber Bush (Jatropha cardiophylla) fruit on a recent plant walk. This is the only fruit anyone in that group could recall seeing (ever), so we were understandably reluctant to pick it to check out the seed. We waited. The fruit was still there on 12/11/2012 and, as others reported seeing fruits in the past, we made the decision to open this one.

Photo by Debbie Bird 12/11/2012
Behold! The lone seed, very firm. I planted it after showing everyone on the plant walk. Thanks to Debbie for documenting this (for me) rare find.

Thursday, December 13, 2012

Peregrin liftoff

Photo by Ned Harris 12/7/2012

Now THAT'S a bird of prey! For more of these and many other birds from Ned's trips to Bosque del Apache, Sulphur Springs Valley, Sweetwater Wetlands, and the magic telephone poles of Tucson, click here!

Wednesday, December 12, 2012

Seeing an echo

Photos by Marty Horowitz 12/6/2012



Echo Azure butterfly.

Tuesday, December 11, 2012

Fruity goodness

Photos by Ned Harris 12/5/2012



These plump pineapple-looking things are Arizona Barrel Cactus (Ferocactus wislizenii) fruits. Ground squirrels, deer, and other mammals (including me) like them. (I generally stick to eating the fruits from the barrel cacti in my yard.) Unlike prickly pear fruits, these have NO spines or glochids. You do have to take care when picking them, though. The fishhook spines on the barrel cactus don't mess around! To eat safely:  look for a ripe fruit (no green), grasp the brownish top and pull gently. If it comes off reasonably easily, it's ripe. Inspect for evidence of other critter bites. If none, take a shallow bite. The skin and flesh have the consistency of an apple; the flesh is quite tart. I avoid the seeds, but they are safe to eat.

Monday, December 10, 2012

Invasive Buffelgrass Overruns 7 Falls in Bear Canyon

Buffelgrass has overrun Bear Canyon’s Seven Falls area.
Saguaros are devastated by the wildfires Buffelgrass promotes
and few new Saguaros will grow in Buffelgrass infested area.

Telltale: the Buffelgrass rachis, or central stem of the seed head,
is coarse and abrasive.
Click on photo for a closer look.

Photos by Tom Skinner. Text by Mark Hengesbaugh:

In Oct. 2012, two scientific studies on Santa Catalina Mountains Buffelgrass were published. One study documents the transformation of rich, diverse Sonoran Desert upland habitat of 15-20 plant species into a “depauperate,” or impoverished, landscape containing only 2-5 species after Buffelgrass invades. The longer Buffelgrass remains on a site, the more species richness and diversity decline.
The second study documents the rate at which Catalina Buffelgrass is spreading: It doubles in acreage every 2.26-7.04 years.
Combining findings of the two studies: Those Sabino Canyon and Bear Canyon hillside sections overrun with invasive Buffelgrass will double again in size within approximately five years, much sooner on south facing slopes. 
Click here to access the studies. Scroll down to Buffelgrass.

Sunday, December 9, 2012

Hooves and Tusks

Photo by Ned Harris 11/13/2012
Click on this photo for a clear view of the two 'toes' of the javelina. Their canines (also called tusks) are sharp and used for digging up insects and worms. And also your plants.

Saturday, December 8, 2012

DON'T LOOK Honey Matt!!

Photos by Fred Fisher 11/12/12



If you click on these photos, you'll see the Green Lynx spiderlings coming out of the egg sac! (Very cool, despite what my husband might say.)