Between Medina and Vanderpool, Texas
One of the prettiest drives in the Texas hill country, State Highway 337 offers scenery everyone can enjoy. Still, like many of these roads, it has more than a good view to offer. Highway cuts reveal layer upon layer of geological history, while cracks and crevices within the rock provide a home for plant life ranging from xeric ferns to blackfoot daisies.
Sometimes I’ll stop just to have a look, since much of the plant life isn’t obvious from the vantage point of a car, even at slower speeds. There’s always something to see, but now and then I get more than I bargained for.
When a friend and I stopped at one of the roadcuts in late March, a bit of red caught my attention. Across the road, at the top of the cliff, it led my eye to another bit of red, and then another. “What is that?” my friend asked. I didn’t know, but I attached a telephoto lens to my camera for a better look at what seemed to be clumps of flowers.
What I found astonished me. The cliffs were covered with cacti, all sporting bright red blooms. Apart from photos, I’d never seen such a thing.
Claret cup cactus (Echinocereus coccineus) ~ Bandera County, Texas
Today, I’m fairly certain these are Echinocereus coccineus. A member of the family known familiarly as hedgehog cacti, this so-called claret cup is a variant of Echinocereus triglochidiatus. Characterized by sprawling clusters of stems that sometimes cover several square feet, both species can be distinguished from other hedgehog cacti by the rounded petals of their brilliant red or orange-red flowers.
Distinguishing E. coccineus and E. triglochidiatus in the field seems to be nearly impossible; the plants are similar enough that chromosomal analysis may be necessary for a firm identification.
On the other hand, location can provide a starting point, since their ranges are largely — though not completely — separate. In Lance Allred’s Enchanted Rock: A Natural and Human History, he identifies the claret cup found at Enchanted Rock State Natural Area as E. coccineus. Given Enchanted Rock’s relative proximity to the spot where these flowers were blooming — about a hundred miles — I suspect E. coccineus is the species I found.
Whichever species of Echinocereus these may be, their exuberant bloom proved once again that there’s no predicting what might be found on any given day. Beyond that, their discovery reminded me to always — but always — carry a telephoto lens. Even when hunting for pretty flowers, you never know when it might come in handy.
Comments always are welcome.