A Last (Prim)rose of Summer

Mexican Primrose-willow buds

Our native Mexican Primrose-willow (Ludwigia octovalvis) is widely distributed: so much so that it’s as likely to be found in Samoa or Singapore as in the southern U.S.  Its flowers certainly recall other primrose species, while its slender leaves suggest the water-loving willows found along the banks of ponds and streams.

Primrose-willow begins flowering in June or early July and continues well into November: bearing buds, blooms, and seed capsules simultaneously. On October 31, new flowers were developing on a multitude of plants I found in wet areas of the Big Thicket, including the Watson Rare Plant Preserve.

A bud that suggests an especially prim rose

Once the flower is pollinated, its petals, style, and stamens fall away, leaving the four triangular sepals shown in the upper right of the photo below. As the plant ages and seeds develop, both sepals and stems develop a pleasing reddish color that contrasts nicely with the pretty yellow flowers.

Several Luwigia species serve as larval hosts for the Banded Sphinx Moth  (Eumorpha fasciatus) and the Primrose Flea Beetle(Altica litigata).   A variety of butterflies visit the plant, including this Gulf Fritillary that paused for a photo session alongside Village Creek near Kountze, Texas.

 

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Sunlight and Shadow

Fully opened flower of the Mexican primrose-willow (Ludwigia octovalvis)

When I first encountered this sweet yellow delight in roadside ditches, I had no idea how tightly its buds close after sunset. As I watched the bud in my previous image begin to unfurl, I wondered how long it would take for the flower to fully open.

Not being on a schedule, I decided to explore the field around the plant while I waited. As it turned out, the time between my photo of the bud and this photo was forty-four minutes. Even though I missed a few minutes at the start of the process, it still took less than an hour for the flower to unfurl and greet the day.

Of some interest is the fact that none of the buds began to open until touched by sunlight. Even as this flower gleamed, buds still shaded or shadowed remained tightly closed: waiting.

 

Comments always are welcome.

 

At Last, There’s Joy In Mudville

Early morning dew collects on a bud of Mexican primrose-willow (Ludwigia octovalvis)

A water-loving plant, Mexican primrose-willow has exploded in the weeks since Hurricane Harvey. Its pretty yellow blossoms and red stems are unmistakable, but here one of its still-green buds serves as a setting for a gem of a dewdrop.

After so many weeks of muddy water and silt, even a single drop of clear, reflective water can bring joy.

 

Comments always are welcome.