Saaz

A question for the Humulus lupulus obsessed

Question 1: What do these hops have in common?

Cascade
Citra
East Kent Goldings
Galaxy
Hallertau Mittelfrüh
Kohatu
Marynka
Nelson Sauvin
Saaz
Strisselspalt
Styrian Goldings
Wai-Iti

Question 2: What seems strange about the picture?