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Native Plants and Wild Plants: Fasciation - The Weird and Beautiful

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patienceplus
Voluntown, CT

June 13, 2011
9:01 AM

Post #8627592

The phenomena is called 'fasciation'. If I understand this correctly, fasciated stems occur when multiple buds fuse together and form a flattened stem structure. It is a somatic event (in vegetative cells), not a genetic mutation that will be inherited through seeds. Has anyone over collected seeds to see if resulting plants also fasciate? Do any of you have photos of plant fasciation?

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patienceplus
Voluntown, CT

June 13, 2011
9:03 AM

Post #8627599

I forgot to add to this that it is a Buttercup from Connecticut. I have added another picture.

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ecrane3
Dublin, CA
(Zone 9a)

June 13, 2011
2:22 PM

Post #8628103

Some families of plants are more prone to fasciation than others (Asteraceae comes to mind for one), so you might grow seeds from one and find that it exhibits fasciation from time to time just because of that. I don't think you'd ever end up with a situation where a plant only produces fasciated blooms either--even on plants that are prone to it you'll still get normal blooms too. So to me it's not like a variegated mutation that you can propagate and produce plants that will always exhibit that characteristic.

I think I have some pics of a fasciated Gerber daisy from a few years ago--I'll have to look for them later and I'll post them if I can find them.
patienceplus
Voluntown, CT

June 15, 2011
9:08 PM

Post #8633323

More pictures of would be fun to see. I'm curious if this type of group pattern ever occurs in trees. I've never seen an example of a tree. Search around the web after learn about my buttercup, I saw many daisies, lilies and cacti, never a deciduous or evergreen tree.
Katlian
Carson City, NV
(Zone 6b)

December 30, 2011
11:53 AM

Post #8947864

I was looking through some old photos and one of them reminded me of your thread. This is Sidalcea oregana growing in the Santa Rosa Mountains north of Winnemucca, Nevada. It caught my eye as we were driving by. I bet it was really spectacular a couple of weeks later when more of the flowers opened.

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Katlian
Carson City, NV
(Zone 6b)

December 30, 2011
12:01 PM

Post #8947875

The other side of the same stem.

I have seen a photo of fasciated pussy willow. The photo is by Mike Swanson and can be found in a themepack for Windows 7. I don't know where else to find the photo, sorry.

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ViburnumValley

ViburnumValley
Scott County, KY
(Zone 5b)

December 31, 2011
5:51 PM

Post #8949407

This can occur in woody plants. I have a Willow (Salix sp.) in the yard with several fasciated stems.

I'll aim to take some pictures tomorrow and post them then.
Kelli
L.A. (Canoga Park), CA
(Zone 10a)

March 30, 2012
3:12 PM

Post #9063515

Are coxcombs grown from seed? Those are fasciated.
cathy166
Stamford, CT
(Zone 6b)

March 30, 2012
6:01 PM

Post #9063693

About three years ago I had a lily with a fasciated stem. When it came up the following summer it was a single stem as it was last year as well. I have the feeling that an outside force caused the fasciation.

Sheila_FW

Sheila_FW
Fort Worth, TX
(Zone 8a)

June 3, 2012
12:50 PM

Post #9150404

I had cabbage do that this last year. Looked strange for sure. Saved some seed may try them.

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ecrane3
Dublin, CA
(Zone 9a)

June 3, 2012
12:55 PM

Post #9150410

Fasciation is just something that happens sometimes--some species of plants are more prone to it than others but it's not something you'll be able to reliably reproduce by growing seeds from a plant that did it (or even by asexual propagation like cuttings)

Sheila_FW

Sheila_FW
Fort Worth, TX
(Zone 8a)

June 4, 2012
9:28 AM

Post #9151606

Don't know who would want to reproduce them anyway! LOL!
2QandLearn
Menifee, CA
(Zone 9a)

June 14, 2012
10:44 AM

Post #9164906

'Cathy166' said: "I have the feeling that an outside force caused the fasciation."

I have volunteer sunflowers every year. Last year I began utilizing 'Liquid Gold' in my yard, and one of the first plants I tried it on was a bush sunflower. Well... it not only got deeper green leaves & grew healthier, but it soon put out flowers that were fused together. I think it was because the nitrogen in the 'L.G.' caused the buds to mature too fast, as there is normally some 'branchleting' & then a single bud/flower on each branchlet... But, in these cases no 'branchleting' occured, and the single flower produced appeared to be one of several fused flowers & mis-shapen. None of the other sunflowers did that, just a few that I poured 'L.G.' under. I stopped using the L.G. on it, and I think that it eventually had normal flowers. So...

So, I am wondering how many fasciated plant parts might be caused by excess nitrogen from some source...

(Or, is what I've described something other than 'fasciation'...?)

This message was edited Jun 14, 2012 10:50 AM

This message was edited Jun 14, 2012 10:51 AM
ecrane3
Dublin, CA
(Zone 9a)

June 14, 2012
6:02 PM

Post #9165447

Fused together flowers do sound like fasciation. I don't know if excess nitrogen encourages it or not, but it's certainly not necessary. I never fertilize my flowerbeds and I've had fasciated Gerbera daisies.
Katlian
Carson City, NV
(Zone 6b)

June 18, 2012
9:10 PM

Post #9171035

I found this information on the Royal Horticultural Society website:
Quoting:
Fasciation may be caused by:

Random genetic mutation or disruption.
The bacterium Rhodococcus fascians.
Viral infection.
Damage to the plants by frost, animals (including insects), chemical or mechanical injury even hoeing or forking around the plant have been implicated.
2QandLearn
Menifee, CA
(Zone 9a)

June 19, 2012
11:01 AM

Post #9171631

Thank You, 'Katlian'! (:

"Fasciation may be caused by: Damage to the plants by ...chemical -OR- mechanical injury..."

Mystery solved regarding my sunflowers! I guess the straight 'liquid gold' must have burned enough roots to cause the fasciation.

Maybe some of the other cases were caused by "hoeing or forking around the plant," or damage to the roots, also.

Easy to test just by stopping the activity, as I did when I with-held the 'liquid gold.'

careyana

careyana
(Carey) Austin, TX
(Zone 8b)

June 20, 2012
12:01 PM

Post #9173026

There was a Mexican Hat in the lot behind our house that was fasciated. I didn't get a chance to see it bloom as the city mowed the lot before that could happen.
ecrane3
Dublin, CA
(Zone 9a)

June 20, 2012
6:21 PM

Post #9173485

I don't know if your fertilizer was to blame--quite a few plants in the Asteraceae family (which sunflowers are a part of) are prone to fasciation via the random genetic mutation/disruption mechanism so even if you don't fertilize, disturb roots, etc they can still develop fasciated flowers.

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