Paul's Scarlet Climber (LC) [Paul's Carmine pillar seedling]

Greening's Book of Horticulture (1922)

J H Nicolas: Memoirs, Horticultural Society of New York, vol 3 (1927)
"Paul's Scarlet Climber as an own root plant may be considered as sterile, but a grafted plant will bear both self- and hand-pollinated seeds."