Convolvulus equitans [Texas Bindweed]

[dancingcat]

Frary, S.C. (2022) Convolvulus equitans Benth. (Convolvulaceae) Texas Bindweed.  Photographed in ultraviolet and visible light.

 

Collected 6 June 2022 on roadside in Waxahachie, Texas, USA.  Voucher deposition: Botanical Research Institute of Texas Herbarium (BRIT) S. C. Frary [149].

 

Other Common Names:  Gray Bindweed

 

Synonyms:  Convolbulus hermanniodes A. Gray

 

Comment:  A common and very small (corolla less than 1 inch) white morning glory with a bright red center growing on dry limestone as a sprawling vine.  Often confused with the invasive and destructive larger relative Convolvulus arvensis, Field Bindweed, which is a menace to prairie habitats and pastures.  This little morning glory is more sedate and does not crowd out everything else.  It is native to the central and southwest USA prairie ecosystem and to Mexico.
 
References:
1. Integrated Taxanomic Information System, United States Fish and Wildlife Service.
2. Linex, R., Texas Bindweed 2020 published by Texas Master Naturalists and Natural Resources Conservation Service
 
Equipment [Olympus EM1mk2-broadband + Olympus 30mm f/3.5 macro]

 

In situ [iPhone 13]

 
Visible Light [f/11, ISO 200, 6”, Kolari Vision UV/IR Cut HotMirror Pro 2 filter, 15-image in-camera stack processed by ZyreneStacker ( PMax)]

 

Ultraviolet Light [f/11, ISO 200, 10”, BaaderU filter, Adaptalux UV LED arm 2x, 15-image in-camera stack processed by ZyreneStacker (PMax)]

 

[colinbm]

Excellent

[Andy Perrin]

This is some fine work you are doing!

[dancingcat]

ty all - added an in situ pix -- blew out the whites a bit with the iphone, but it shows how it grows... very close to the ground.

[Andrea B.]

Bee-you-tee-ful, for sure. Good work, Sue.

The stacking really does give the photos a fine look.

 

I have just figured out that the Panasonic S1R has some kind of stacking capability. I'm going to experiment with that this week. From what I've read so far, I can't stack any UV, but I want to at least try it on Vis.

 

We are plagued with that wretched C. arvensis which you mentioned. I dig it out of the courtyard garden *daily*. It looks rather pretty along the gravelled roadsides, but I sure don't want to see it anywhere else.