High Summer at Southwest Nature Preserve

After the long reprieve from Texas heat, with the rains of spring and early summer, we’re back to a more typical August. With temperatures climbing and the sun beating down, I decided it was time to take a walk at Southwest Nature Preserve. I was there from about 1:45-3:15pm.

The North Pond

Cricket frogs and turtles were busy at the North Pond, and dragonflies busily and silently did their dance, swooping and hovering. The Common Whitetail more than justified its name as the commonest of the dragonflies I saw.

A Common Whitetail, perched on a branch

I watched all this for a while, but the sun was merciless and I wanted a shadier place to roost. Up the red sandy trail and under some oaks, I turned to see a Texas Spiny Lizard on a Post Oak trunk, her body making an arc as she hung upside-down there, head pulled up to look at me and tail drooping a little away from the tree trunk. Like all such lizards who survive to adulthood, she was wary, and disappeared around the trunk as I moved in to ask for a photo.

Texas Spiny Lizards have had a heck of a year, with rain and runaway plant growth supporting a bumper crop of bugs. I hope they persist (as they always do, in some numbers) during the dry periods that may come. I never get tired of seeing these cute little reptiles that sometimes tolerate you coming close but always at some point scamper away, up and around the trunk, too fast for your eyes to follow.

I followed the trail at the back of the preserve and climbed up to the ridge where there could be more breeze. Around the little loop trail at the crown of the preserve, there is an old concrete pad left over from when it was a working farm, and I sat there for a while, enjoying the quiet. There is almost always some airplane noise, but the spot is on the other side of the ridge from most traffic and so you can escape much of the mechanized soundtrack of modern life, for a little bit.

A Sumac seed head

Sumac is common in places at the preserve, and their seed heads can be a bright, velvety red before drying and darkening into the color of dried blood. Rob Denkhaus tells me I could make a tea out of it, and I’d like to find some growing somewhere that I could harvest a seed head or two and try it!

Looking down from the ridge onto the trail below

On the walk back to the trailhead, I saw one more of a kind of butterfly that seemed familiar – was it a Hackberry Butterfly like one I’d seen on a previous walk? I got a photo, and it appears that I was right. (Thanks, iNaturalist!)

A Hackberry Butterfly, according to iNaturalist

At the end, Weather Underground was reporting that the temperature in Arlington was 101ºF, with a heat index making feel like 117ºF. So it got pretty hot today, though the lizards and insects didn’t seem to care. It’s a little more troublesome for those of us whose bodies only operate in a narrow range around 98.6ºF, but a little shade and a little breeze got me through.

A Shortcut to Nowhere

I climbed up “Kennedale Mountain” today, an old-ish man with pulmonary disease scaling the summit easily. Kennedale Mountain is a ridge at the Southwest Nature Preserve. A primitive trail gently climbs to a sandstone ridge at the top via a series of switchbacks. On the lower slopes there is a section of plastic netting that urges people to stay on the trail and not climb straight up the hillside, where they would damage vegetation, churn up the sandy soil and make erosion likely.

Eastern Cross Timbers woodland at the preserve

I wish that unsightly barrier did not need to be there. Why would people take the short cut to the top? Is there a race? Frankly, I’d much rather take that slow, meandering path and see all the little wonders that can be seen on the way up. If you’re not in a hurry, there is a lot to see.

iNaturalist tells me that this is Bluejacket, a type of spiderwort

Even the plants that some would consider a nuisance can be pretty spectacular. It seems that sunny openings where there is adequate moisture and sandy soil are just great for Texas bull nettle, a plant that I carefully avoid brushing up against. Its hairy, spiny branches and leaves and the pure white blossoms are a real treat, though.

Texas bull nettle

The ridge at the top has a flat, open area where Little Bluestem grows between scattered Blackjack Oak, and the shelf of iron-rich sandstone looks great, if you avoid places where people have carved initials.

Clumps of Little Bluestem, in little vertical brush-strokes of blue-green.

Elsewhere within the oak woods, which are a remnant of the Eastern Cross Timbers ecoregion, lichen-covered boulders are scattered among Blackjack and Post Oak, Sumac, and a wide diversity of other plants. Dragonflies hover and swallowtail butterflies flutter among the trees. There is really a fine diversity of butterflies and skippers to be found there.

The understory is like a beautiful jungle under the oaks
A skipper

The beautiful dark skipper was resting on sumac, a shrub which can easily get out of control but is a beautiful plant. Today the seed heads where brilliant red; in the fall the leaves will be even redder.

Seeds maturing on a sumac bush

This season, horse mint is growing like crazy in places; in lower areas the purple Lemon Bee Balm is common, and in other areas the Spotted Horse Mint grows in profusion. It’s a nice-looking plant, but if you look closely, it’s a spectacular plant!

Spotted Horse Mint
A crab spider waiting in ambush on a Spotted Horse Mint

Speaking of looking closely, there was a gorgeous little bloom growing low to the ground here and there in the woods, and you have to stop and really look to appreciate it. Bend down, spend a little time, and notice that it grows on a sort of trailing vine and that some narrow green seed pods are developing. According to iNaturalist, it’s “Fuzzybean,” which sounds like a Sesame Street character but is actually a legume.

iNaturalist tells me that this is a Fuzzybean

Looking closely and taking your time pays off richly at the preserve. There are all kinds of flowers that you could lose yourself in. I stood in the steaming sunlight, admiring and trying not to drip on my camera. (Most of the close-ups were taken with an iPhone, and while I don’t claim that they’re anything special, I think that phone may be my best close-up camera.)

(I have no clue)
Butterfly Pea, according to iNaturalist

On the way back, there were more butterflies, including a beautiful Question Mark, a kind of butterfly that is utterly camouflaged with wings closed but is a beautiful study in orange and dark brown when it opens those strangely-curved wings. It was doing what butterflies do, sipping on a clump of scat. We don’t like to think about such beautiful insects getting nutrition from feces, but there you are.

Question Mark

On the way back, I passed the place where that rogue trail joins the “official” trail near the top. Stacks of tree branches were piled there to discourage the cut-through down the slope. I still cannot imagine why anyone would come to this amazing place and want to take the short cut. I hope that they at least stopped somewhere, took a good look at something, in their race to do whatever they were doing.

Branches piled along the trail, suggesting, “no short cut; take your time”

(You probably noticed a lot of references to iNaturalist. I use it pretty regularly and it’s a wonderful way to get suggested identification of what you’re seeing and also to share your observations with other naturalists and with the scientific community. I’m pretty well-versed in reptiles and amphibians and have learned as much as I can about the bigger picture, but there’s an incredible amount that I don’t know. The iNaturalist app helps a lot.)