Crocus to identify? Post them here....

[udo]

Hello Franz,
looks like Crocus sieberi ( atticus ) 'Firefly'.
A good grower and set not seed.

[hadacekf]

Hello Udo,
Thank you, I assumed it.

[Knud]

Could be vernus, too - check leaves. If they are 2-3 mm wide - it is tommasinianus, if 4 mm or wider - vernus.
Janis

Janis and Tony,
About six weeks ago you helped in identifying my C. tommasinianus, with one question remaining: the width of the leaves. It has been in bud for about two weeks now, and bloomed this last weekend when the temperature crept up to 7-8 C in the sun. I measured the leaf width, and it is 2-3 mm, definitely not 4 mm and wider, so the conclusion is that it is a tommasinianus. I have included three pictures of it, first in bud ten days ago, then in bloom three days ago, then a closeup. It is a very robust crocus, certainly when compared to the much daintier one I bought as C. tommasinianus some years ago, and shown in the fourth picture.

Knud

[Knud]

Hello Franz,
looks like Crocus sieberi ( atticus ) 'Firefly'.
A good grower and set not seed.

I have to thank you, Udo, for posting this reply, and Franz for posting your nice 'Firefly' pictures. I think your postings have helped identified one of my mystery crocusses, - what do you think?

Knud

[tonyg]

Could be vernus, too - check leaves. If they are 2-3 mm wide - it is tommasinianus, if 4 mm or wider - vernus.
Janis

Janis and Tony,
About six weeks ago you helped in identifying my C. tommasinianus, with one question remaining: the width of the leaves. It has been in bud for about two weeks now, and bloomed this last weekend when the temperature crept up to 7-8 C in the sun. I measured the leaf width, and it is 2-3 mm, definitely not 4 mm and wider, so the conclusion is that it is a tommasinianus. I have included three pictures of it, first in bud ten days ago, then in bloom three days ago, then a closeup. It is a very robust crocus, certainly when compared to the much daintier one I bought as C. tommasinianus some years ago, and shown in the fourth picture.
Knud

It looks within the range of C tommasinianus but if it is much larger than the 'dainty' form perhaps it is a hybrid with C vernus.  I have seen such hybrids in the local cemetery where big populations of both species grow.  Some resemble C tommasinianus but are almost twice the size of 'normal' tommasinianus - these are the hybrids.

[Knud]

Thank you again, Tony. It is not unlikely that there were also C. vernus in the old garden where my crocus came from.  I will check more carefully than "robust" and "dainty", and see if I can get some comparative pictures tomorrow. It has been very encouraging how well all but the autumn flowering crocusses have done in our garden the last four years, with the two wettest and two coldest winters on record. I must try out more species.

Knud

[hadacekf]

Knud,
I think too it is a hybrid with C vernus.

[Knud]

Here is some more detail of the 'robust' (below ruler in picture 1) and the 'dainty' (above ruler) tommasinianus. Both plants are about average size for their groups, which grow less than two meters apart.  The robust one is only slightly taller than the dainty, but its flower is almost twice the size, as shown in pictures 2 and 3. The leaves are similar, both 2-3 mm wide and the robust slightly darker green.  What I noticed when I went to pick them today (and hadn't noticed before), was that in the robust group more than half had two flowers from each plant, but in the dainty group all plants had single flowers. The double flowers make the stem look more robust than it really is, so the most significant difference between the two is the size of the flower.

Knud

[tonyg]

A nice hybrid it is!

[Knud]

Thank you, Tony, much appreciated!

Knud

[Guff]

Unknown yellow that I had posted last year.

[olegKon]

I received this Crocus as Crocus nevadensis. It doesn't stick to the description. Is it C.tommasinianus?

[Armin]

Oleg,
they are no nevadensis for sure. It could be tommasinianus as you supposed, however, the images are not good to make a definitive judgement.
It looks the leaves have been covered long and are bleached, right?
The withish style is strange for a tommy...

[Armin]

Unknown yellow that I had posted last year.

Guff,
do you have an image of the open flower to see style and anthers and flower center?
If not - I would say it is a nice chrysanthus hybrid. The outside marking is not matching any of the cultivars I know.

[olegKon]

Thanks, Armin. It's a bit smaller than any tomassinianus I have