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Willow rose

Salix barclayi

Description:

Delicate flowering vegetation, low to the ground. The Camellia gall, or terminal rosette gall, occurs on Salix species, which are prone to galls in general. "Rabdophaga rosaria [the gall midge]... lays her eggs in the end bud of Barclay's willow along with enzymes that cause the newly forming leaves to grow into this rose-like pattern with a fleshy interior that the maggot can eat." If I were to dissect the gall, an orange larva would be found inside! The adult midge erupts in the spring time.

Habitat:

Grows in the high alpine tundra of Denali National Park and Preserve. This is a subarctic region at elevation > 3300'.

Notes:

Some information directly quoted in the description was taken from: http://lscottranger.blogspot.com/search?... Fascinating details about the "Story of the Willow Rose": http://www.akentsoc.org/doc/Bowser_ML_et... Lastly, here's information on the gall midge: https://en.wikipedia.org/wiki/Rabdophaga...

1 Species ID Suggestions

Machi
Machi 6 months ago
Willow
Salix sp. Willow - Wikipedia


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3 Comments

mauna Kunzah
mauna Kunzah 6 months ago

@Machi, thanks again! I was able to figure out the species and learned quite a bit.

mauna Kunzah
mauna Kunzah 6 months ago

Thanks for the ID, Machi! So, you mean to say that there’s likely a critter inside this plant? :0 What a surprise.

Machi
Machi 6 months ago

We have many species of willow in Alaska so I'm not sure which species it is. What you see in the photo is called a willow rose https://www.fws.gov/uploadedFiles/Region...

mauna Kunzah
Spotted by
mauna Kunzah

Alaska, USA

Lat: 63.53, Long: -149.93

Spotted on Jul 16, 2016
Submitted on Feb 22, 2019

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