Helianthus maximiliani [Maximilian's Sunflower]

[Andrea B.]

•  

Posted August 6, 2020 · IP

 

 

Blum, A.G. (2021) Helianthus maximiliani Schrad. (Asteraceae) Maximilian's Sunflower. Flowers photographed in ultraviolet and visible light. https://www.ultravioletphotography.com/content/index.php?/topic/4980-helianthus-maximiliani-maximilians-sunflower/

 

La Secuela, Santa Fe, New Mexico, USA

11 August 2021

Wildflower in home garden

 

Synonyms:

• Helianthus maximiliani var. asperrimus Engelm. & A.Gray

• Helianthus maximiliani var. dalyi Farw.

• Helianthus maximiliani var. iubaris Lunell

• Helianthus maximiliani f. pallidus Clute

• Helianthus maximiliani var. paniculata Farw.

 

Comment:

These late-blooming sunflowers make spectacular columns of blooms, 6 feet tall or more. Like most other Helianthus, H. maximiliani has a UV-absorbing central bull's-eye.

 

References:

1. SEINet Arizona-New Mexico Chapter (acc 14 Mar 2021) Helianthus maximiliani

This is a southwestern biodiversity organization making use of the Symbiota portal software.

2. Allred, Kelly W., Jercinovic, Eugene M., Ivey, Robert DeWitt (2021) Flora Neomexicana III: An Illustrated Identification Manual, Second Edition, Part 2, Helianthus Key, page NNN. Print on demand at lulu.com.

 

 

Equipment [Nikon D610-broadband + Nikon 105mm f/4.5 UV-Nikkor]

 

Visible

f/16 for 1" @ ISO-100 with Onboard Flash

Baader UV/IR-Cut + Schott BG38 x 2.0 mm Visible-Pass Filter Stack

 

 

 

 

Ultraviolet

f/16 for 20" @ ISO-400 with SB-140 UV-Flash (3 flashes during exposure interval)

BaaderU UV-Pass Filter

 

 

Ultraviolet

f/16 for 20" @ ISO-400 with SB-140 (3 flashes during exposure interval)

SEU-Red UV-Pass Filter

 

 

 

UV + Blue + Green

f/8 for 30" @ ISO-1250 under Skylight

Hoya U330 x 2.0 mm + Schott S8612 x 2.0 mm UV/Visible Filter Stack

 

 

 

Visible Abaxial

f/16 for 1/1.6" @ ISO-100 with Onboard Flash

Baader UV/IR-Cut + Schott BG38 x 2.0 mm Visible-Pass Filter Stack

 

 

UV Abaxial

f/16 for 20" @ ISO-400 with SB-140 UV-Flash (3 flashes during exposure interval)

BaaderU UV-Pass Filter

 

 

 

[nfoto]

The accepted binary name is not a synonym, Andrea ....

[Andrea B.]

That one is spelled with two ii.

The other one is spelled with one i.

Hence the listing.

[nfoto]

That doesn't make it a synonym. Orthographic variations occur. The common practice with a epithet in possessive form is -ii, by the way, assuming the honoured person is male. There is a tendency to keep the original spelling, but later corrections are not uncommon and if they are "blessed" by the International Botany Congress will overrule any objections.

 

Nice documentary photos, would be great to have something showing the habit of the entire plant, foliage as well?

[Andrea B.]

They're on the way. Just haven't gotten there yet.

I went and got a new set of synonyms from Kew.

[Andrea B.]

And I spoke too soon !! I looked everywhere and have yet to find the garden views of my Max Sunflower. It will eventually turn up. If not, I'll try again next year.

[Guest]

 UV + Blue + Green & UV Abaxial 

[colinbm]

Beautiful collection Andrea

[Andrea B.]

Thank you. 

[Bill De Jager]

Lovely photos, Andrea, with a very nice 3-D effect. Did you do focus stacking?

 

So you're growing your own composites in your garden.  :-)  I used to do a bit of that before it became too shaded some years ago.

[Andrea B.]

No focus stacking in these. I lack the patience for that!