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09-16-2021, 03:09 PM - 3 Likes   #1
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What Kind of Blue Flower?
Lens: HD Pentax DA 16-85mm Camera: K10D Photo Location: Neighbor's Garden-Sac. ISO: 200 Shutter Speed: 1/125s Aperture: F5.6 

Is it a Tradescantia occidentalis? Or is it a Commelina erecta?
No biggie to me, actually. Just an interesting point of conversation on a discrimination that I cannot get.

But I am posting it in the Critiques section for a couple of reasons:
1. I put it in the upper right due to the leaves that I really thought supported the image.
But I see the flower is looking out of the image to the right.
I'm wondering if folks have any thoughts/critiques on that.

2. A slight breeze requested a shutter speed of 1/125s; the K10D requested a low ISO setting (as is well known); and the depth of field wanted something tighter than f:5.6.
I "erred" in favor of the shallow depth of field.
Now I wish I would have risked a slower shutter and tighter aperture.
If any thoughts / critiques or suggestions, please share.

Whatever the case, enjoy the deep blue of this surprising flower that I found in my neighbor's shady "jungle area".
Angky.

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09-16-2021, 03:43 PM   #2
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I love the flower, ditching the leaves with a tight crop. Like this grab


Hang up and DRIVE!
09-16-2021, 08:32 PM - 1 Like   #3
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QuoteOriginally posted by MikeMcE Quote
I love the flower, ditching the leaves with a tight crop. Like this grab


Hang up and DRIVE!
Well, that is a good interpretation too!
Really does put the focus on the blossom. And it doesn't hurt to lose those leaves; it changes the image, but it is still very striking--maybe even moreso.
Thanks for the input; I appreciate it!
Angky.
09-16-2021, 10:19 PM - 1 Like   #4
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This is where you must choose between a documentary or an artistic approach. When trying to ID plants, one must always include leaves if possible since they are often the separator among species.


Last edited by jbinpg; 09-16-2021 at 11:01 PM.
09-17-2021, 10:39 AM   #5
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I like the way you cropped the image. The intense blue Commelina is balanced by the two leaves.
Although she seems to be "looking" to te right, there is no movement in the picture hinting towards
the right side. I really like te saturation of this image.
09-17-2021, 02:18 PM - 1 Like   #6
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QuoteOriginally posted by jbinpg Quote
This is where you must choose between a documentary or an artistic approach. When trying to ID plants, one must always include leaves if possible since they are often the separator among species.
Quite right you are!
I thought I had identified the flower, then compared the leaves to the on-line pictures and they didn't match.
Found leaves that matched, but the flower didn't!
So I still am not sure what specie/variety I have here!
I like what you say about differentiating between purpose of art or purpose of documentary.
Angky.

---------- Post added 09-17-21 at 02:23 PM ----------

QuoteOriginally posted by Peter Rockstroh Quote
I like the way you cropped the image. The intense blue Commelina is balanced by the two leaves.
Although she seems to be "looking" to te right, there is no movement in the picture hinting towards
the right side. I really like te saturation of this image.
Thank you for your observation with explanation.
I debated a long time about both the cropping and the saturation. Glad you like it!
Angky.
09-28-2021, 04:27 AM   #7
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I lean more towards Commelina plum ..... commonly known as Wondering Jew, but my last plant tax course was 35+ years ago...but that's my best guess.

No matter....still a nice image!

09-28-2021, 08:07 PM   #8
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From the number of petals shown - Tradescantia has 3 petals, Commelina has 2.
09-28-2021, 08:43 PM   #9
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QuoteOriginally posted by forensicscientist Quote
I lean more towards Commelina plum ..... commonly known as Wondering Jew, but my last plant tax course was 35+ years ago...but that's my best guess.

No matter....still a nice image!
Thank you for your input on this.
A few decades ago, my mother had plants like this that she called "Wandering Jew", but it had a slightly different flower, if I recall correctly. But, as in your case, it has been a very long time.
Thanks for the note on it.
Angky.

---------- Post added 09-28-21 at 08:47 PM ----------

QuoteOriginally posted by vrphoto Quote
From the number of petals shown - Tradescantia has 3 petals, Commelina has 2.
Just so! That was my best assessment also. But are the leaves correct for Commelina?
I think the flower has the greater weight above leaves in identifying, but I am not a horticulturalist.
At any rate, it is an interesting topic and an interesting flower.
Thanks for your note on it!
Angky.
09-30-2021, 05:03 PM   #10
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QuoteOriginally posted by angkymac Quote
Is it a Tradescantia occidentalis? Or is it a Commelina erecta?
No biggie to me, actually. Just an interesting point of conversation on a discrimination that I cannot get.

But I am posting it in the Critiques section for a couple of reasons:
1. I put it in the upper right due to the leaves that I really thought supported the image.
But I see the flower is looking out of the image to the right.
I'm wondering if folks have any thoughts/critiques on that.

2. A slight breeze requested a shutter speed of 1/125s; the K10D requested a low ISO setting (as is well known); and the depth of field wanted something tighter than f:5.6.
I "erred" in favor of the shallow depth of field.
Now I wish I would have risked a slower shutter and tighter aperture.
If any thoughts / critiques or suggestions, please share.

Whatever the case, enjoy the deep blue of this surprising flower that I found in my neighbor's shady "jungle area".
Angky.
When in the US are you located? This is a flower very common to the hill country of Texas, although not native…
09-30-2021, 06:25 PM   #11
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QuoteOriginally posted by stihlmania Quote
When in the US are you located? This is a flower very common to the hill country of Texas, although not native…
This was found as a non-native in my neighbor's "jungle area" (literally!). I think it is something he happened upon, thought it pretty, brought it home from a friend's place, dropped it down on the ground and then forgot about it. He keeps this area very wet, even misting it, and shady. The plant grows vigorously, but only one blossom.
I live in Sacramento, California--a very hot and dry spring, summer, and fall.
I have heard that these grow in Texas, which you confirm.
Angky.
10-03-2021, 12:44 AM   #12
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QuoteOriginally posted by angkymac Quote
Thank you for your input on this.
A few decades ago, my mother had plants like this that she called "Wandering Jew", but it had a slightly different flower, if I recall correctly. But, as in your case, it has been a very long time.
Thanks for the note on it.
Angky.

---------- Post added 09-28-21 at 08:47 PM ----------



Just so! That was my best assessment also. But are the leaves correct for Commelina?
I think the flower has the greater weight above leaves in identifying, but I am not a horticulturalist.
At any rate, it is an interesting topic and an interesting flower.
Thanks for your note on it!
Angky.
according to

en.wikipedia.org/wiki/Commelina_erecta
and to

Lady Bird Johnson Wildflower Center - The University of Texas at Austin

it's quite variable, hence your indecision about the leaves.
10-03-2021, 08:06 PM   #13
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QuoteOriginally posted by vrphoto Quote
according to

en.wikipedia.org/wiki/Commelina_erecta
and to

Lady Bird Johnson Wildflower Center - The University of Texas at Austin

it's quite variable, hence your indecision about the leaves.
Well, now! That is quite interesting! That there is that much indecision at the genus level is amazing. I can understand differences at the species level, but at the genus????
So, anyway, thank you so much for that input, and for looking it up!
Angky.
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