Plant ID forum: Which Yuccas are these?

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Name: Paul
Utah (Zone 5b)
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Paul2032
Nov 15, 2011 9:44 AM CST
These are growing in a friend's garden. Which ones are they?
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Paul Smith Pleasant Grove, Utah
Name: Janet Super Sleuth
Near Lincoln UK
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JRsbugs
Nov 15, 2011 11:31 AM CST
The second looks like Yucca filamentosa, I grew it from seed..

http://www.duke.edu/~cwcook/trees/yufi.html
Name: Janet Super Sleuth
Near Lincoln UK
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JRsbugs
Nov 15, 2011 11:42 AM CST
Are you sure the first isn't an Agave? It has toothed leaves like Agave tequilana ..

http://en.wikipedia.org/wiki/File:Agave_tequilana_2.jpg
Name: Paul
Utah (Zone 5b)
Grandchildren are my greatest joy.
Charter ATP Member Plant Lover: Loves 'em all! Annuals Echinacea Vegetable Grower Hybridizer
Tomato Heads Garden Photography Birds Cut Flowers Foliage Fan Plays in the sandbox
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Paul2032
Nov 15, 2011 12:23 PM CST
Janet....Frankly I am not certain and appreciate your input about the Agave. I'll check it out. Great to continue to learn .I think you are right on both. Do you think 3 might be an Agave also?
Paul Smith Pleasant Grove, Utah
[Last edited by Paul2032 - Nov 15, 2011 12:26 PM (+)]
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Name: Carole
Clarksville, TN (Zone 6b)
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SongofJoy
Nov 15, 2011 12:32 PM CST
I think the second one is definitely Yucca filamentosa. I have it and you can't miss those filaments.



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Name: Paul
Utah (Zone 5b)
Grandchildren are my greatest joy.
Charter ATP Member Plant Lover: Loves 'em all! Annuals Echinacea Vegetable Grower Hybridizer
Tomato Heads Garden Photography Birds Cut Flowers Foliage Fan Plays in the sandbox
Image
Paul2032
Nov 15, 2011 1:15 PM CST
Thanks Tee.
Paul Smith Pleasant Grove, Utah
Name: Janet Super Sleuth
Near Lincoln UK
Charter ATP Member Organic Gardener Garden Photography Bee Lover Dragonflies Cat Lover
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JRsbugs
Nov 15, 2011 1:23 PM CST
No. 3 is giving me a headache Paul! I can't decide where it belongs, neither can I find any which look like it. There are narrow leaved agaves and yuccas, the multiple growth can happen with both if cut back but it could be another genus. There's others such as Dyckia.

I think I found a yucca which looks similar but without the filaments and it appears to have a narrow pale edge. Yucca linearifolia is close but not close enough.

I found one which is blue and has filaments, Yucca baccata var. vespertina 'Hualampai Blue' but the leaves are broader.

http://plantlust.com/plants/yucca-baccata-var-vespertina-hua...

That could be it, I found another photo with young plants around which have narrow leaves but not the more blue form.. the filaments can give the impression of having a pale edge. The multiple growth is probably from being cut back.

http://www.yuccaagavaceae.com/photos/details.php?image_id=28...


[Last edited by JRsbugs - Nov 15, 2011 1:24 PM (+)]
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Name: Janet Super Sleuth
Near Lincoln UK
Charter ATP Member Organic Gardener Garden Photography Bee Lover Dragonflies Cat Lover
Butterflies Birds Plant Identifier I was one of the first 300 contributors to the plant database! Spiders!
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JRsbugs
Nov 15, 2011 1:28 PM CST
The description of Yucca baccata var. vespertina 'Hualampai Blue' certainly fits for the area too!

A new Cistus introduction. From our earliest days of botanically exploring the rich area from south western Utah to northern Arizona we've noticed the banana yucca, with forms there having upright, very blue leaves looking much like a misplaced sanseverria. This clone, from the south side of the Colorado river in Mojave County, is one of the bluest of the blue.
Name: Paul
Utah (Zone 5b)
Grandchildren are my greatest joy.
Charter ATP Member Plant Lover: Loves 'em all! Annuals Echinacea Vegetable Grower Hybridizer
Tomato Heads Garden Photography Birds Cut Flowers Foliage Fan Plays in the sandbox
Image
Paul2032
Nov 15, 2011 2:13 PM CST
Sounds good to me.
Paul Smith Pleasant Grove, Utah

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