Laburnum anagyroides vs. Laburnum alpinum

[BubikolRamios1]

Can anyone confirm this leaf difference (petiole/not petiole) ?
http://www.blumeninschwaben.de/Zweikeim ... dregen.htm

It is not mentioned in EXKURSIONSFLORA DER ALPEN

[Anagallis]

Rothmaler writes "leaflets broad elliptical, fruits with silky hairs" vs. "leaflets narrow elliptical, fruits almost glabrous".

[BubikolRamios1]

http://www.zaplana.net/flowers/Fabaceae ... agnoj).asp

also (besides fruits) here stated that young shots of L. alpinum are glabrous comparing to all other L. being hairy.

[BubikolRamios1]

also found on some web page that alpinum has glabrous leafs. Following OP link (http://www.blumeninschwaben.de/Zweikeim ... dregen.htm) I would say alpinus leafs are shiny, same as at this (not good enough source image to say something about leaf hairynes of l: alpinus):

[botanix]

http://www.botanik-bochum.de/jahrbuch/P ... roides.pdf
page 198