Everything about them is right for Camasssia except not a bulb?

I was sold these as Camassia years ago when I didn't know that Camassia has a bulb not a tuber.
Years went by and then I had an "argument" with someone who said Camassia grows from a bulb.. I checked on the net and sure enough they do grow from a bulb SO what are mine? They have the same foliage and palish blue flowers the same as Camassia in late Spring but as you can see from the photos mine grow from white tubers. Maybe they are a specific type of Camassia but seems very odd that mine have tubers and the rest grow from a bulb. Altho I have more than shown in the photo they have not multiplied quickly at all which I believe Camassia does. Sure someone on here will know and will be shocked if @Silver surfer doesn't know the answer!

 

Look more like Agapanthus roots than Camassia (ALL of which have bulbs, even though C. esculenta are quite small).
If the plants smell of Onions, then there are Alliums which do not have 'bulbs in the same way as the giant one.

 

Thanks @Palustris but definitely not either Agapanthus or Alliums both of which I grow quite a few varieties of. While the flowers are blue they don't grow in a ball type shape and they flower in the early summer unlike Agapanthus. No smell of onions either. The attached isn't of mine but it might as well be as the flowers are as far as I can see identical. You can see in the 1st photo of mine a couple of long stems which had flowers on them just like in this photo. All very strange if as you say Palustris that all Camassia are bulbs. Oh well they are quite pretty whatever they are!

 

Very Camassia looking are they not?

 

they are very pretty. an addition of blue is a nice feature in the gardens. I am not sure where you live, or your zone. The root base of your mystery plant is interesting. I also have lots of Alliums, and other bulbs. If we could know your zone and perhaps when this actually blooms that might be helpful to us.

 

The only thing I can think of is that they are C. esculenta which have been grown in poor soil and they have failed to build up their bulbs.
I cannot find, yet, any blue flowered plants with Camassia like flowers.

 

"will be shocked if @Silver surfer doesn't know the answer!"

I don't know the answer. Sorry!

Been thinking.
Really struggling!
How did you get it originally.. dry/growing/in a pot/did it arrive as a bulb????

Do you always dig it up in the autumn?
Does it form a clump?
How tall does it grow?
How many petals does it have? Camassia has 6.
Has it got any seed heads left ? Pics please.
Are the leaves flat or round?

So far all I can think of is Libertia caerulescens...but leaves are flat.
syn Libertia sessiliflora

https://www.burncoose.co.uk/site/img/products/large/libertia_caerulescens_5690~3g.jpg

http://www.plantstoplant.com/libertia-caerulescens-c2x9492345#.ViD3u_-FMlI

https://www.google.co.uk/search?q=Libertia+caerulescens&biw=1536&bih=728&source=lnms&tbm=isch&sa=X&ved=0CAYQ_AUoAWoVChMIhp_8oobHyAIVgn4aCh2WwgbP#imgrc=h7V2bBCbvOdcpM:

http://www.pacificbulbsociety.org/pbswiki/files/Libertia/Libertia_sessiliflora_br2.jpg

http://www.pacificbulbsociety.org/pbswiki/index.php/Libertia

If this is miles out may I suggest good pics of the flowers next year.
A general and close up of a single flower.

 

As Palustris says C.esculenta would have more tightly packed flowers resembling a ball shape. C.leichtlenii tend to be more stretched out like the ones in the photo that you posted off the web so that is probably what you have. The foliage certainly looks scrappy enough which is my biggest bugbear with them.
Looking at your first photo I'm wondering how deep they were planted? About 5cm is deep enough really. I can't deny that the roots on yours look far fleshier than mine did though.

Here's a photo of my C.leichtlenii from earlier this year for you to compare.............

 

Thanks both @Silver surfer and @longk . Definitely not Libertia . I have the white Libertia and the leaves are much tougher and evergreen while the "Camassia's" are much "softer" and deciduous. I wish I could remember how I bought them but so long ago I can't. I definitely didn't buy them in a pot. All I do know is that when I came to dig them up prior to moving house I was surprised to find tubers not bulbs. Can't have changed from bulbs to tubers can they!!!!? No I don't dig them up in Autumn normally, they were in the way of something else so that's why I dug them up now. I have now (about 20 years on from original purchase of maybe 6 which is a guess) about 20 tubers so NOT quick to spread.You would be pushed to call them clump forming but that ,maybe because I live in Scotland and they don't like the cold much? They are not deep planted, maybe up to four inches below the surface with the neck of the tuber just below soil level.When I dug the ones in the photo up 1 tuber had another 1 intertwined so an addition if this makes sense so could spit the 2 up. The leaves grow to about 20 inches, while the flower stalks are quite a bit taller, maybe 3ft. As the leaves are dying back atm it's a little difficult to count them but looks like 7 per tuber. Don't know the number of petals per flower. The fingers of the tubers are up to 8 inches long leaves are not dissimilar in texture and shape to small Narcissus varieties. I was out in the garden this morning and noticed that there is 1 seedpod on the flower stem of some of the others still in the ground. I will take a photo of it when I've recharged the batteries of my camera. Maybe that will solve the mystery. Typical Longk yours is nicer than whatever mine are! more flowers per stem I think and it could be the photo but looks a darker blue. Thanks both and will post photo of solitary seedpod later.

 

Check out Tulbaghia.

 

Tulbaghia leaves also smell of onions.

https://www.google.co.uk/search?q=T...ChMIpZe5w4DKyAIVgb8aCh1X-ghl&biw=1593&bih=743

 

Great suggestion @Palustris but no. The configuration of the flowers is wrong. I'd never even heard of Tulbaghia!
Here's the photo of a seedpod. Obviously there have been many more on the flower stalk but presume they have fallen off. Looked on the net at Camassia seed pods and hmmm they look pretty similar to me.

 

Checking back to see if there is an answer, and I see not yet. So Silu, have a suggestion, have you checked with your local nurseries as to what it is, if it grows in your area, certainly your not the only person to have this plant. Give that a try.