Thalictrum coreanum seeding?

[Rick R.]

I only have only one clone of Thalictrum coreanum, and for nine years it has never set seed, until now.  As I understand(?), the species is either self infertile or dioecious.  I grow Tt. kiusianum, aquilegifolium, dasycarpum(both sexes), thalctroides and minus(both sexes).  All are 30ft (9m) or more away.  What is the likely scenario to produce seed?
--- apomixis?
--- temporary production of hermaphroditic flowers?
--- temporary self fertility?
--- cross pollination with other species?
--- ? ? ?

       

[Afloden]

Rick,

 Curious to say the least, but my plants, which are all one clone (even the one you sent) have set seed this year to. I am thinking that it must be due to the production of a few bisexual flowers that enabled seed set due to some weather-related issue? Not sure, but very odd that we both have seed. I don't think I have any other species in flower that would be phylogenetically close to one another concurrently.

 I am still unsure whether these are coreanum or ichangense. If the latter, they are very different from the ones I saw in Vietnam.

 Aaron

 

[Rick R.]

A good example of how an individual clone is spread throughout the USA. Thanks for your insights, Aaron.  In fact seed production was confined to just part of one 2x2ft mat that I have.  The other (in a different garden) did not produce seed at all.