Prickly But Pretty

Opuntia cacanapa ~ El Capote Ranch, Gonzales County

By early July, the peak flowering of assorted Texas cacti has come to an end. The plants — claret cup, lace, hedgehog — fade back into the landscape, and even the more obvious pencil cactus can be hard to spot without its bright red fruit.

Even the best-known of our cacti, the prickly pear, rarely shows deep summer blooms. Still, occasional plants were producing their delightful flowers across the Texas hill country the first weekend in July.

Opuntia engelmannii var. lindheimeri  ~ Old Willow City Road, Gillespie county

There are more species of prickly pear than I’d ever imagined, and distinctions among them sometimes depend on such small details as the number and arrangement of spines and glochids: a part of the cactus that, once encountered, never is forgotten. Flower color isn’t the best guide for prickly pear, since color variation occurs in all species.

I’m relatively certain that the identification of the first cactus, O. cacanapa, is correct. It’s worth noting that German geologist Ferdinand Roemer, for whom so many of our plants are named, visited the El Capote ranch during his collecting trip to Texas in 1845-1847.

While the other identifications are ‘best guesses’ based on size, spine color, and other factors, there’s no doubting the plants’ membership in the the genus Opuntia, or the beauty of their flowers.

Eastern Prickly Pear (Opuntia humifusa) ~ Sabinal river crossing, Bandera County

 

Comments always are welcome.

Tête-à-Tête

Two Gray Hairstreaks sipping nectar from antelope horn milkweed (Asclepias asperula)
(click image for greater clarity and detail)

 

One of the most common butterflies on the North American continent, the Gray Hairstreak (Strymon melinus) also ranges into Central and northern South America.

In their book Butterflies of Houston and Southeast Texas, John and Gloria Tveten describe hairstreaks as “fast-flying butterflies that dart about so quickly and erratically that they are extremely difficult to follow.”  I’ve certainly been frustrated by that behavior, but this pair, intent on sips of nectar, were more than willing to tolerate my presence.

Found on a milkweed-covered  hillside along the west prong of the Medina River, very near The Nature Conservancy’s Love Creek Preserve, these hairstreaks were accompanied by Buckeye, Sulphur, and American Painted Lady butterflies: all enjoying the abundance of late spring flowers, and perfect flying conditions.

 

Comments always are welcome.