(2001)  Page(s) 441.  
 
Plant Introductions in the period 1900-2000
1901 Rosa 'Dorothy Perkins' USA. Raised by Jackson & Perkins and named for George Perkins' daughter. So popular did the rose prove that later a chain store was also given the same name.

(2001)  Page(s) 301.  
 
Plant Introductions in the period 1700-1799
1724 Rosa x centifolia Moss Rose, Provence Rose. Garden origin. France

(2001)  Page(s) 46.  
 
Plant Introductions in the period before AD 1000
Paeonia officinalis Common Peony. France to Albania.

(2001)  Page(s) 39.  
 
...Paeonia officinalis, which is indigenous anywhere between France and Albania. It is not known when the plant arrived in England, but it was certainly well known in medieval times, since evidence shows that in 1299 the infirmarian of Durham Priory bought 3 lb...of the seeds. These were used medically to help stave off nightmares and for pain relief...

(2001)  Page(s) 382.  
 
Plant Introductions in the period 1800-1899
1826 Paeonia brownii American Wild Peony, western Peony. W. North America.

(2001)  Page(s) 379.  
 
Plant Introductions in the period 1800-1899
1808 Paeonia lactiflora (syn. P. albiflora, P. japonica of gardens) E. Siberia, Tibet, China. Reintroduction ...from Canton by Reginald Whitley, a nurseryman from Fulham in London.

(2001)  Page(s) 308.  
 
Plant Introductions in the period 1700-1799
1784 Paeonia lactiflora (syn. P. albiflora, P. japonica of gardens) E. Siberia, China. Reintroduced.

(2001)  Page(s) 446.  
 
Plant Introductions in the period 1900-2000
1947 Paeonia lutea var. ludlowii (syn. P. delavayi var. ludlowii) Tree Peony. S.E. Tibet. Collected by Frank Ludlow and George Sherriff.

(2001)  Page(s) 104.  
 
Plant Introductions in the period 1200-1299
1299 Paeonia mascula (syn. P. corallina) S. Europe

(2001)  Page(s) 39.  
 
About the same time [1299], P. mascula, a species from southern Europe, was brought to Britain, possibly by the Augustinians when they settled on the little island of Steep Holm in the Bristol Channel....