From: Grasses are able to harbor the oversummering of urediospores and the overwintering of teliospores of Puccinia striiformis f. sp. tritici in China
Grass species
Number of
Leaf segment
Aecia
Single aecium
Infection typesa
1 and 2
3 and 4
Agropyron cristatum
26
60
227
4
Elymus cylindricus
9
339
1485
22
48
Total
35
399
1712
52