Plant ID forum: Trillium sp. ID needed—southeast Michigan.

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NullValue
May 12, 2017 9:34 AM CST
This is a Trillium sp. from southeast Michigan. My first instinct was that it was just a T. grandiflorum that had simply gone pink (as is their tendency) but then I noticed that it is definitely far more maroon than the pink of older populations of T. grandiflorum which we have in this region. Our T. grandiflorum go white, pink, and then shrivel. There is no maroon stage. I then saw the longer sepals which are less pronounced in T. grandiflorum. So my guess is now T. erectum, or some morph of it, though the petals are not lanceolate enough vs. the pictures I've seen on the web for me to make a positive ID myself. I also should add that I have never encountered T. erectum in the wild here despite many forays into woodlands and dark forests. It is always T. grandiflorum that I find. I also understand that T. erectum can be highly variable in color, basically any color between white and deep, maroon red. I imagine their petal shape share similar morphological variability.

Either way, any help is appreciated!

Thumb of 2017-05-12/NullValue/0daac5
Perthshire. SCOTLAND. UK
Region: United Kingdom Plant Identifier
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Silversurfer
May 12, 2017 10:29 AM CST
If the flower has a long flower stalk then Trillium erectum fits with colour /flower shape

http://wisflora.herbarium.wisc...

https://en.wikipedia.org/wiki/...

Trillium recurvatum also has red flowers...but no flowering stalk. Petals different.

http://ncwildflower.org/images...

Trillium chloropetalum...no flower stalk...long red petals.

https://en.wikipedia.org/wiki/...
[Last edited by Silversurfer - May 12, 2017 10:37 AM (+)]
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NullValue
May 12, 2017 1:32 PM CST
Thanks for those images, Silversurfer. I didn't take the picture myself so I don't know much about flower stalk length. But I definitely don't think it's T. recuvatum as there is no recurve to the petals, and the geographical location pretty much rules out T. chloropetalum. Which leaves T. erectum or even an escaped cultivar of T. grandiflorum (if such things exist). Or even T. grandiflorum with an especially unique phenotype.
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Leftwood
May 13, 2017 2:47 PM CST
I would say it is T. erectum, also.
http://www.efloras.org/florata...
http://www.efloras.org/florata...

It does not look even remotely like the T. grandiflorum we have in Minnesota.

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