Alright so i found 14 multi header big stemmed dandelions in the past 2 days why do they exist and if I get the seeds from them can I grow them or something like them I find them pretty common I found about 6 a day on my 1/4 mile walk home so what it is it why does it happen and can I make more?

That is so amazing! I found one of these in my lifetime.

I've found other weird dandelions, the only not pictured I found variegated leaves.

I hope you try to grow them from the seeds - and let us know the results!

Dandelions are susceptible to Asters Yellow. Giving the blooms weird growth it could be a possibility. I have not personally seen this condition on dandelions, so I am not sure that this would be the case. Maybe someone else will be able to help.

May happiness find you this month!

It could also be herbicide damage.

A fasciation. A negative one, not positive (like a crested plant.) If you have desirable plants susceptible to aster yellows, I would recommend destroying the plants that are showing fasciation, and checking your desirable plants.
http://www.missouribotanicalga...
https://www.sciencedirect.com/...

purpleinopp said:A fasciation. A negative one, not positive (like a crested plant.) If you have desirable plants susceptible to aster yellows, I would recommend destroying the plants that are showing fasciation, and checking your desirable plants.
http://www.missouribotanicalga...


problems/diseases/viruses/aster-yellows.aspx
https://www.sciencedirect.com/...

What's the difference between negative and positive fasciation and I do not think they have asters yellow do you you think if I planted there seeds it would make mutant offspring thanks

Abnormal growth is attributed to Asters Yellow of which dandelions do get. Because I am not an expert in this I would urge you to contact your county extension office. Send them the pictures and let them decide. If it is Asters Yellow, it should all be carefully destroyed. Seeds do pass on Asters Yellow. It will be devastating for you, neighbors, and farmers if the Asters Yellow spreads. If your county extension office thinks they are disease free go ahead and try to grow them.

May your day turn into a fantastic one.

Negative fasciation would be that caused by disease, chemical damage, or pests (like the mite that causes aster yellows.) A crested plant or other genetically mutated plant that has fasciation that is not unhealthy would be positive, and often more prized by collectors than a non-fasciated one. Like Euphorbia lactea.

Hopefully someone else can answer your question about the seeds, I have no idea.

@Mrcreepercraft48 Let the dandelions stay planted and when these special ones produce seeds collect them and plant the seeds, that's the only way to see if they will pass down.