科名：禾本科 Gramineae

属名：狗牙根属 Cynodon

《Flora of China》 Vol. 22 (2006)
Cynodon dactylon var. biflorus  Merino
双花狗牙根   shuang hua gou ya gen
Fibichia umbellata Koeler var. biflora Beck.
Spikelets 2.5–2.7 mm, with 2 bisexual florets; rachilla between florets ca. 1 mm. Fl. and fr. May–Oct.
Fujian, Jiangsu, Taiwan, Zhejiang [described from Europe].
Specimens occur sporadically throughout the range of the species in which the rudimentary second floret at the end of the rachilla extension is better developed. In rare cases it may even enclose anthers or be bisexual and only a little smaller than the lower floret. Such spikelets often occur on plants with mainly normal inflorescences and are of negligible taxonomic significance.