Poaceae Sorghastrum nutans (L.) Nash - United States of America H. E. Ahles 78630 image_info.php?img=images/collections/heahles_078630_01_p.jpg&id=110406#image110406 Poaceae Sorghastrum sp. - Peru R. Chavez 587 image_info.php?img=images/collections/rchavez_000587_01_p.jpg&id=110405#image110405 Poaceae Sorghastrum sp. - Peru R. Chavez 587 image_info.php?img=images/collections/rchavez_000587_02_p.jpg&id=110407#image110407 Poaceae Sorghastrum sp. - Peru image_info.php?img=images/collections/_000000_59_p.jpg&id=110408#image110408