1) Genus listera 2) Liliopsid genus 3) Monocot genus 
(from the article `twayblade`) Listera, with about 30 north-temperate species, also is characterized by broad, paired leaves. Each flower has a large, forked lip. The common ...
[n] - genus of terrestrial orchids having usually a single pair of broad shining leaves near the middle of the stem
genus Listera noun genus of terrestrial orchids having usually a single pair of broad shining leaves near the middle of the stem; found in temperate Asia and North America and Europe