Interspecific hybrids have a mosaic of both parental and intermediate morphological characters rather than just intermediate ones. Plant height ranged from 113.1 (Dauro x S.13) to 141.2 cm (Maiwa 94-2 x S.13). Maiwa 94-2 x S.13 which was also not significantly different (p = 0.05) from other hybrids except Dauro x S.13. Only Maiwa 25-2 x S.15 (116.0 cm) was not significantly different (p = 0.05) from the shortest hybrid, Dauro x S.13 (Table 5). Hybrids of all Maiwa parents with S.13 elephant grass selection were generally taller than those hybrids with S.15 elephant grass selection except with Dauro parent which had its hybrids with S.15 being taller than its counterpart hybrids with S.13. These variations are often expected from interspecific hybrid plants from parents with contrasting agronomic and morphological features. The observations corroborate the reports of Hanna and Monson (1980) and van de Wouw et al. (1999) who reported variations between and within accessions of elephant grass × pearl millet hybrids in terms of plant height, ranging from 120 to 340 cm at ten weeks after cutting. However, distinguishing morphological parental characters expressed by hybrids of closely related species have been reported to show dominant inheritance pattern (Gottlieb, 1984; Hilu, 1993).