This name is a synonym of Pisum sativum subsp. brevipedunculatum (P. Davis & Meikle) Ponert.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 13071283) with original publication details: Notes Roy. Bot. Gard. Edinburgh 29(3): 320 1969.
This name was in version 1 of The Plant List, record tro-13071283, and has not been changed.