疾风知劲草，烈火见真金 "Strong wind reveals the strength of grass; and genuine gold stands the test of fire."

知风草 Eragrostis ferruginea ; weeping love grass

疾风知劲草 Adversity reveals genius ; Sturdy grass withstands high winds

金知风草 Hakonechloa macra

多毛知风草 Eragrostis pilosissima Link

毛叶知风草 Eragrostis pilosiuscula Ohwi

细穗知风草 Eragrostis japonica Thunb

知风草属 love grass ; Eragrostis

知风草柄锈菌 puccinia eragrostidis-ferrugineae