A Sure Sign of Summer

If I’m lucky, this Prairie Gentian will be only the first of many that I’ll find this year. Its scientific name, Eustoma exaltatum, points both to its ‘large-mouthed’ appearance (Eustoma) and to its height (exaltatum).  Other common names — Catchfly Prairie Gentian, Bluebell Gentian, and Seaside Gentian — all apply to this showy, purple-to-lavender flower that occasionally appears in white.

Before its flowers appear, the plant easily is identified by grayish-green, oppositely-arranged leaves that clasp the stems. Tolerant of salt and with a preference for moist conditions, the it can be found in salt marshes, wet prairies, and coastal flats from Florida through Texas, to California and northward.

A large colony of these flowers on the west end of Galveston Island fell first to the mowers and then to the developers, but this single bloom at the side of a west end road whispered a message: “Get thee to Brazoria County. I have friends there.”

Who could ignore a message from a flower?

 

Comments always are welcome.

Bud, Bloom, and Banquet

Purple leatherflower bud ~ Dudney Nature Center, League City

One of my favorite native vines, the Purple Leatherflower (Clematis pitcheri), typically climbs over and around woodland margins, road cuts, fence rows, and disturbed ground such as construction sites. While its stems can grow to a length of ten feet or more, its flowers usually are less than an inch long. Solitary and simply shaped, the sepals of the blue-to-purple flowers have recurved, slightly ruffled margins; the plant blooms from late spring through summer.

The genus name is derived from the Greek klematis: a word which designates climbing plants. The specific epithet pitcheri honors Dr. Zina Pitcher (1797-1872), a surgeon with the United States Army, Regent of the University of Michigan, and botanist in the Great Lakes region.

Purple leather flower in bloom ~ Brazoria Wildlife Refuge

Seeds begin to form even while the plant still is blooming. Held in clusters, they mature from light green to dark red or brown, with slightly hairy tails that some describe as spider-like.

The flowers are pollinated primarily by bumblebees, although other insects such as flower-feeding thrips and caterpillars of various Thyris moth species feed on the foliage. The vine is used as cover and nesting habitat by songbirds, and although no specific butterflies are associated with the plant, this Painted Lady (Vanessa cardui) seems to have found it a congenial resting place. Whether it was sipping a bit of leftover nectar or pondering its next stop on the vine, I can’t say.

Painted Lady on developing C. pitcheri seed head ~ Brazos River bank, East Columbia

 

Comments always are welcome.

From Bud to Bloom

Emerging between February’s freeze and March’s bluebonnet extravaganza, wisterias brightened our landscape considerably.

This American Wisteria (Wisteria frutenscens), a Texas native with fragrant purple flowers, covered a chain-link fence in the nearby town of Dickinson. A member of the pea family, the shape of its opening buds makes clear its relationship to other early bloomers in the Fabaceae, such as Mountain Laurel and various wild indigos.

A bit farther down the road, at the Buddhist temple in Santa Fe, white wisteria covered an archway. While the native Texas species sometimes produces white flowers, I suspect this to be a form of Japanese wisteria: Wisteria floribunda. Although listed as a noxious weed in many states — the Missouri Botanical Garden has a firm “DO NOT Plant!” notice on its site — careful pruning had confined this beauty to a single area of the garden, where it was busy delighting the bees.

 

Comments always are welcome.