OLONOVA, M. V. & W. L. CHEN (2010). Systematic revision of the Poa sphondylodes Trin. complex (Poaceae). Candollea 65: 135–141. In English, English and French abstracts.

The taxonomic status of the Poa sphondylodes Trin. complex (Poa sect. Stenopoa Dumort., Poaceae) is discussed. Two subspecies are recognized: Poa sphondylodes subsp. kelungensis Ohwi, restricted to Taiwan and Poa sphondylodes subsp. sphondylodes, with a wide distribution in the eastern part of China, Korea, Japan, and the Far East of Russia. This latter includes 5 varieties, Poa sphondylodes var. sphondylodes, Poa sphondylodes var. erikksonii Melderis, Poa sphondylodes var. subtrivialis Ohwi, Poa sphondylodes var. macerrima Keng, and Poa sphondylodes var. plurifolia (Keng) Olonova & W. L. Chen, which is validated. A lectotype is designated for the name Poa sphondylodes. Identification keys are given.