Lycopus americanus [American Water Horehound]

[Andrea B.]

Blum, A.G. (2022) Lycopus americanus Muhl. ex W.Bartram 1815 (Lamiaceae) American Water Horehound. Flowers photographed in ultraviolet and visible light. LINK

 

EMR Recycling Center, Southwest Harbor, Maine, USA

28 July 2017

Wildflower

 

Synonyms:

• Lycopus americanus var. longii Benner
• Lycopus americanus var. scabrifolius Fern.
• Lycopus europaeus var. sinuatus (Ell.) Gray
• Lycopus pennsylvanicus Muhl. ex Raf.
• Lycopus pinnatifidus Raf.
• Lycopus sinuatus Ell.
• Phytosalpinx americanus(Muhl.) Lunell

 

Other Common Names:

• American Bugleweed

 

Comment:

Found growing in a damp ditch. The leaves have a nice metallic appearence in reflected UV light. The small 4-lobed flowers are UV-absorbing, but the cluster of hairs in the throat have UV-reflective tips.

 

Reference:

 

1. Native Plant Trust Go Botany (acc 26 July 2022) Lycopus americanus. American Water Horehound. LINK

 

Equipment [Nikon D610-broadband + Zeiss 60mm f/4.5 UV-Planar]

 

Note:  The backgrounds of all three photos were cleaned up for a better presentation.

 

 

Visible Light [f/11 for 1/15" @ ISO-200 with Onboard Flash and Baader UVIR-Block Filter]

 

 

Ultraviolet Light [f/11 for 13" @ ISO-400 with SB-14 UV-modified Flash and BaaderU UV-Pass Filter]

Three flashes were made in the exposure interval.

 

 

UV+Blue+Green [f/11 for 4" @ ISO-400 in Ambient Light with UG5(2.0mm) + S8612(2.0mm)]

[Andy Perrin]

What a name! "American Bungleweed" Indeed, so often...

[Andrea B.]

Bugle like the Boogie-woogie Bugle Boys of Company C.

 

But now I kinda have grown fond of Bungleweed. 

[colinbm]

Such a nice flower, & not in close-up ?

[Unscenerie]

Amazing! This weed sure does stand out in UV...

[Andrea B.]

We never quite know what we'll see in reflected UV!