White flowering Eranthis

[YT]

Eranthis byunsanensis is a synonym of E. pinnatifida by The Plant List (http://www.theplantlist.org/tpl/record/kew-2791909), so I put 'cf.' before specific epithet about the file name of attached pics In anyway, this eranthis looks different to E. pinnatifida particularly by its petal (nectary) colour and shape for me The picture size is larger than usual for ID

[Peppa]

Eranthis byunsanensis is a synonym of E. pinnatifida by The Plant List (http://www.theplantlist.org/tpl/record/kew-2791909), so I put 'cf.' before specific epithet about the file name of attached pics In anyway, this eranthis looks different to E. pinnatifida particularly by its petal (nectary) colour and shape for me The picture size is larger than usual for ID

I was actually looking at some sites that listed Eranthis byunsanensis today. This is called 'hinamatsuri-sou' in Japan, correct? I can see an obvious difference between it and E. pinnatifida, specifically the color of the green nectary. What about the flower size? Are they bigger than pinnatifida?

[WimB]

Wonderful plant YT,

that's another white flowering form which is not very distinct.  According to the "The Korean Journal of Plant Taxonomy" there is a genetic difference,

For the ITS phylogeny, E. pungdoensis could not be distinguished from E. byunsanensis. However, the clade of E. byunsanensis, including E. pungdoensis, was separated from Eranthis pinnatifida of Japan, which has a distinct ribotype and forms a sister group.

Or is it the same as Eranthis stellata (??): http://feelgreen55.blogspot.com/2010/03/shibateranthis-stellata-eranthis.html

My best guess would be that (almost) all white flowering species (E. stellata, E. pinnatifida, E. sibirica, E. albiflora (and E. byunsanensis)) have the same parent plant and separated into different species quite recently. When the plants got dispersed (for example by geodispersal when Japan separated from the mainland) the different species changed according to their environment (resulting in visible changes for example, like between E. sibirica and E. pinnatifida or only on the genetic level, like between E. pinnatifida and E. byunsanensis).

[YT]

I was actually looking at some sites that listed Eranthis byunsanensis today. This is called 'hinamatsuri-sou' in Japan, correct? I can see an obvious difference between it and E. pinnatifida, specifically the color of the green nectary. What about the flower size? Are they bigger than pinnatifida?

Peppa, yes, this eranthis is called 'ひなまつり草(Hina-matsuri-sou)' in Japan and green nectary is definitely unique character of this species.

Wonderful plant YT,

that's another white flowering form which is not very distinct.   According to the "The Korean Journal of Plant Taxonomy" there is a genetic difference,

For the ITS phylogeny, E. pungdoensis could not be distinguished from E. byunsanensis. However, the clade of E. byunsanensis, including E. pungdoensis, was separated from Eranthis pinnatifida of Japan, which has a distinct ribotype and forms a sister group.

Or is it the same as Eranthis stellata (??): http://feelgreen55.blogspot.com/2010/03/shibateranthis-stellata-eranthis.html

My best guess would be that (almost) all white flowering species (E. stellata, E. pinnatifida, E. sibirica, E. albiflora (and E. byunsanensis)) have the same parent plant and separated into different species quite recently. When the plants got dispersed (for example by geodispersal when Japan separated from the mainland) the different species changed according to their environment (resulting in visible changes for example, like between E. sibirica and E. pinnatifida or only on the genetic level, like between E. pinnatifida and E. byunsanensis).

Wim, thank you for the interesting references and good opinion As Janis wrote, the imported tubers from such countries are usually bad quality, so this mysterious eranthis plants marketed in Japan now are all propagated by seeds from very few survived plants.

[WimB]

Whatever the name, they are very beautiful plants. Your E. byunsanensis is a very good form!!

[Maggi Young]

Whatever the name, they are very beautiful plants. Your E. byunsanensis is a very good form!!

  We were thinking exactly the same thing here! These white eranthis are quite delightful... most charming and delicate little things of great beauty and a pleasure to see the pictures. 

[YT]

Wim, thanks! Some more white eranthis are just sprouting now

Maggi, it is also my pleasure to share and see pics with forumists

[YT]

Eranthis pinnatifida, ex. Chichibu, Saitama, Japan. Close to northern limit of this species.

[art600]

I think every image is stunning and even though bulbs are my passion, I could find room for these wonderful plants - and hepatica  
  

[Brian Ellis]

Beautiful, Tatsuo-san, thank you for your wonderful pictures.

[WimB]

Very beautiful, Tatsuo.  Love those plants. You're a very good photographer, by the way!

[YT]

Art, you are forgetting most important thing!!! Go to a travel agent and book a flight to Japan in mid-April for collecting seeds of those

Brian and Wim, cheers I bought a new camera last year and it works very well

[WimB]

Brian and Wim, cheers I bought a new camera last year and it works very well

Good picture of your camera. Now, how did you do that   

[art600]

Art, you are forgetting most important thing!!! Go to a travel agent and book a flight to Japan in mid-April for collecting seeds of those

Tatsuo

I would happily pay for you to collect - have already booked aholiday in Kazakhstan 

[YT]

Wim, 

Art, have a nice holyday in Kazakhstan Looking forward to your exciting report at this forum

A E. pinnatifida seedling, with greenish sepals.