Fig. 4From: Responsiveness of cats (Felidae) to silver vine (Actinidia polygama), Tatarian honeysuckle (Lonicera tatarica), valerian (Valeriana officinalis) and catnip (Nepeta cataria)The number of cats that responded to silver vine, catnip, Tatarian honeysuckle and valerian root. The response of the total study population to each plant material is shown in a different color. Significantly more cats responded positively to silver vine and catnip than to Tatarian honeysuckle and valerian root. Responses to silver vine were more intense than to catnip (P = 0.02)Back to article page