Saguaro Sky
Embrace with me the unique splendor of southern Arizona’s deserts in November. Join me atop the Tanque Verde Ridge as we capture the last light accentuating the saguaros against an evolving sky.
Tag: Santa Catalina Mountains
Mesquite Flowers and Seeds
desert survival
Mesquite is the Sonoran Desert smell carried by distant rain, omnipresent and humble, a survivor with tap root extending 190 feet down to draw on the water table.
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Prosopis is the scientific name for about 40 species of leguminous trees. Present in North America since the Pliocene era, mesquite wood has been dated to 1300 BC.
I found this flowering mesquite bush in Finger Rock Canyon of the Catalina Mountains outside Tucson, Arizona.
They are thought to have evolved with megafauna in the New World. The loss of North American megafauna at the end of the Pleistocene era gave way to one theory of how the Prosopis spp. were able to survive.
One theory is that the loss of the megafauna allowed Prosopis spp. to use their fruit pods to attract other organisms to spread their seeds; then, with the introduction of livestock, they were able to spread into grasslands.
The plentiful legumes that develop from these flowers are edible when cooked. The shape and color of the seeds can be understood from this empty seed pod that happens to lie near a tarantula burrow.
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References:
“Mesquite,” Wikipedia
Copyright 2023 Michael Stephen Wills All Rights Reserved
Cottonwood Shade in Pima Canyon
The cottonwood’s deep roots draw water from a mountain stream.
Looking back down Pima Canyon on a spring morning plenty of green under the unrelenting sun.
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A large Fremont’s Cottonwood Offers shade and protection along the Pima Canyon Trail.
In the shade, a grapevine, offers a vain promise of grapes.
The cottonwood’s deep roots draw water from a mountain stream.
Native Americans in the Western United States and Mexico used parts of Frémont’s cottonwood variously for a medicine, in basket weaving, for tool making, and for musical instruments. The inner bark of Frémont’s cottonwood contains vitamin C and was chewed as an antiscorbutic – treatment for vitamin C deficiency. The bark and leaves could be used to make poultices to reduce inflammation or to treat wounds.
The Pima people of southern Arizona and northern Mexico lived along Sonoran Desert watercourses and used twigs from the tree in the fine and intricate baskets they wove. The Cahuilla people of southern California used the tree’s wood for tool making, the Pueblo peoples for drums, and the Lower Colorado River Quechan people in ritual cremations. The Hopi of Northeastern Arizona carve the root of the cottonwood to create kachina dolls.
Reference: Wikipedia “Fremont’s Cottonwood.”
Copyright 2023 Michael Stephen Wills
Cactus Blossoms in Pima Canyon
Delicate buds develop into a flower, and then, into a cactus tuna
A set of photographs of buds and blossoms of the Prickly Pear Cactus taken in Pima Canyon of the Pusch Ridge Wilderness of the Catalina Mountains.
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Eight New Blossoms
Here are 8 flower bud growing from one cladode (pad). There is a 9th bud on a second cladode. What is interesting about these pads are the needle shadows. Although thin, each provides some protection from the sun.
Cactus Closeup
This delicate bud will develop into a flower and, then, into a cactus fruit (in spanish, tuna). The fruit retains those tiny spines, called glochids, which detach on the smallest contact. The pads are also covered with them.
Prickly pears are known for growing into thickets. The Cuban government created a “cactus curtain” of prickly pears around the Guantanamo naval base in the 1960’s, to prevent Cubans from escaping to refuge in the United States.
Cactus Flowers
Look closely at the anthers of these flowers. Each curls over when touched, depositing its pollen. The habit of prickly pears to grow together in thickets mean there are clusters of blossoms in springtime.
Copyright 2023 Michael Stephen Wills
Flowering Saguaros in Finger Rock Canyon
Some Fallen, Some Blessed
My visit to Finger Rock Canyon of the Santa Catalina Mountains filled two mornings. On the first morning, the subject was the lower canyon as morning light filtered over the eastern ridge.
Early morning to the north / northwest looking over a 20-foot fallen Saguaro Cactus (Carnegiea gigantean), toward lower ridges of the Santa Catalina Mountains. The saguaro is among a stand of healthy fellows, some with new growth and flowers on the tips of arms and main columns. This giant must have grown over rock through 60 years. It was brought down when the roots weakened. Specimens that are more reliably rooted can live to 200 years.
A clump of brittlebush shrub (Encelia farinosa) grows from the same rock.
Pima Canyon is the next over, behind that near ridge which provides similar shade. Unlike Finger Rock Canyon, the Pima Canyon trail follows the western cliff and loses the shade much sooner. During our three-week trip, my wife, Pam, and I visited Pima in our first week.
These photos were taken between 6:20 and 7:00 am.
Along the trail I noticed a multitude of buds on the tip of selected saguaro arms. In a previous blog, there’s a photo of this same saguaro in the shade. The following series captures the one blossoming top just as the sun passes over the eastern, shadowing, ridge.
The same saguaro, two minutes later…….
Here is a portion of the saguaro forest, around 7 am with the lower canyon filled with light. There are a few foothill homes with west and southwest Tucson. The Tucson Mountains are in the distance.
Copyright 2023 Michael Stephen Wills
Saguaro Flowers in Finger Rock Canyon
April Perfection
These photographs are a continuation of blogs from two days’ exploration of Finger Rock Canyon of the Santa Catalina Mountains, southern Arizona. Here we explore the nature of the Saguaro blossom.
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Saguaro flowers start as buds on the tip of the cactus body or arm. The specimen in the photograph below, growing in the yard of a foothills home on the border of federal land, is over 30 feet tall and, at the end of April 2011, buds are sprouting from every tip. Look closely for opening buds and full saguaro blossoms.
Flower buds grow only from some tips and around the center, along the sides, not from the point at the very end of the tip, from which the limb grows.
These buds first appeared mid-April and are here shown in the latter stages of maturity, prior to opening. Sometimes, the base of an arm weakens and the arm lowers close to the ground while remaining healthy. While descending the canyon I noticed this had happened to the arm of a particularly large specimen, an arm in full flower. This and the following photographs are from that arm.
I have read that each flower opens in the cool of the night and lasts only until the following afternoon. Here is a fully blossomed flower with a pair of opening buds.
And more, from a different view of the same arm.
A saguaro flower in full bloom, having opened the previous night. This flower will last a single day. It will wilt in the heat of a single afternoon and close. In this brief time, flying animals will pollinate it. You can see numerous honey bees on the flowers, in a previous blog, “Saguaro Flowers in Finger Rock Canyon.”
Copyright 2023 Michael Stephen Wills
Finger Rock Canyon Morning
April Perfection
The perfection of April in Tucson is nowhere better than mornings spent in Finger Rock Canyon of the Catalina Mountains. Oriented on a north/south axis, the eastern cliffs shed a long shadow well past 9:30 am. For early risers such as me, this means no hat and cool hiking to the canyon head: the trail hugs the eastern cliffs.
These three shots were taken 5:30 – 6:00 am mountain time (Arizona does not follow daylight savings time except on the Navajo Reservation).
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Copyright 2023 Michael Stephen Wills
Saguaro Sky
dramatic skies from Saguaro National Park
November is a special time for the ranges and basins of southern Arizona deserts. Climb a bajada of foothills, face west and wait for the sunset. That is what I did this day, November 3, 2005. East of Tucson the Saguaro National Monument at the foot of the Rincon Mountain Wilderness is where I parked, unpacked the photo gear and climbed the side of the Tanque Verde Ridge for a favorable view. Weather was pushing high level moisture from the west, clouds were developing.
You see here a shot from that session. In the distance, looking across Tanque Verde, are the Santa Catalina mountains. Months since the last rainfall, the giant Saguaros are using internal moisture reserves drawn up from a shallow root system, the flesh is less plump, the supporting structure of the ribs, always evident, are more pronounced. The last light catches these ribs in relief against a dramatic sky.
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Copyright 2023 Michael Stephen Wills All Rights Reserved
Ocotillo Sunset from Saguaro National Park, a diary Part 7
The Flag Forms
The penultimate posting of my retrospective diary of the day I created my print “Octillo Sunset.” You can see a large version of “Ocotillo Sunset” by clicking on any of my blog photographs.
The Flag in Formation and Realization
Then, for reasons I can only speculate about, a spectacular shape came together in the clouds. In the following photograph I have yet to recognize, to see, this cloud sculpture. Do you see part of “Ocotillo Sunset” coming into shape? As far as I remember, at the time I had only a dim realization of what was forming in my view finder and in front of me.
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Then, I changed camera orientation and shifted the view a few degrees to the left and there it was: a coherent shape of something. Here it is in full, untethered.
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The final result of the day’s work, “Ocotillo Sunset.”
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Copyright 2021 Michael Stephen Wills All Rights Reserved
Ocotillo Sunset from Saguaro National Park, a diary Part 6
Shooting As The World Turns
This is a retrospective diary of the day I created my print “Ocotillo Sunset.” You can see a large version of “Ocotillo Sunset” by clicking on any of my blog photographs.
Shooting as the World Turns
In Part 5, we enter the final phase of this day’s work with darkening of the land while in the sky sunlight reflects off high clouds. The length of this moment when twilight is over, just before night falls, varies with latitude and time of year. Near the poles (high latitude) this light can last for days while here, at about 32 degrees north, it is less than 15 minutes. As I wrote in Part 4, after this light, the desert is absolutely dark. This is why I chose to set up by the roadside.
In the following two photographs I experimented with camera placement and foreground elements. Starting in Part 4 I became aware of Ocotillo branches, using them for the effect of reaching for and, here, anchoring the clouds.
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Lead Around by an Ocotillo
These earth-bound Ocotillo branches lead me to the darkened earth. How much to include in the shot? I searched for a balance between the vastness and complete blackness and needed a point of interest. Time was running out.
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