Khoonmengia honbaensis A many synflorescences arranged into a panicle (leaf flowering branch not shown) B single synflorescence composed of only one spikelet subtended by a sheath-like bract terminal on leaf flowering branch C prophyll D sheath-like bract E glume F rachilla segment G lemmas & paleas H dissection of one floret showing lemma, palea, 3 stamens, gynoecium with 2 stigmas and 3 lodicules I lodicules J nut-like caryopsis (leftmost, within its lemma and palea, and second from left, detached) and when sectioned vertically (third from left) and transversely (rightmost). (l = lemma, p = palea). Scale bars: 2 cm (A); 1 cm (B); 5 mm (C–H, J); 2 mm (I).