Thalictrum alpinum (growing between lava, near Reikjavik).
"Visit to Iceland and the Scandinavian North" by Ida Pfeiffer
Darea, Glycine, Buchanania, Saurauja ferruginea, Thalictrum majus, Pothos, etc.
"Journals of Travels in Assam, Burma, Bhootan, Afghanistan and TheNeighbouring Countries" by William Griffith
Thalictrum flavum (Meadow Rue) .
"Handbook to the Severn Valley Railway Illustrative and Descriptive of Places along the Line from Worcester to Shrewsbury" by J. Randall
There is, however, an important botanical difference between the two genera: the thalictrums have no calyx, and the Isopyrums have.
"Hardy Perennials and Old Fashioned Flowers" by John Wood
Then more pale yellow of Mullein, Thalictrum, and Paris Daisy, and so the colour passes to stronger yellows.
"Wood and Garden" by Gertrude Jekyll