Agrostis calderoniae A whole plant B ligular area C spikelet D floret, abaxial view E floret, adaxial view F palea. A based on Acosta 687 (isotype, MEXU), B–F based on Acosta 692 (IEB). Scale bars: 3 cm (A); 1 mm (B); 0.5 mm (C–E); 0.2 mm (F).