adj.两侧对称的（等于zygomorphous）
Flowers axillary, bisexual, zygomorphic, solitary, with a pair of bracteoles at joint of peduncle and pedicel.───花腋生，两性的，左右对称，单生，在花序梗和花梗的关节具一对小苞片。
Flowers zygomorphic, often reduced, cleistogamous, sometimes autogamous and intermediate.───开花左右对称，降低的通常，，有时自花受精和中间。
Flowers usually regular, rarely slightly zygomorphic, usually bisexual, sometimes bisexual and male flowers present in same inflorescence.───花通常整齐，很少稍左右对称，通常两性，有时两性花和雄花存在于相同的花序中。
Inflorescences terminal. Flowers bisexual, zygomorphic.───花序顶生花两性，左右对称。
Flowers bisexual, mostly actinomorphic, sometimes zygomorphic.───花两性，多数辐射对称，有时左右对称。
Flowers bisexual, 5-merous, actinomorphic or zygomorphic by the presence of a single lateral split of varying length.───花两性，5瓣，由于一个侧面分裂的长度出现变化而成辐射对称的或左右对称。
Two different early development modes were showed in gametophyte, and they are linear mode in P. yezoensis et al. and zygomorphic pattern in P. katadai.
The genus Euphrasia is a group of herbs with zygomorphic flowers, which members are widely distributed in the temperate areas and tropical or sub-tropical mountains.