The ISO 19100 series of geographic information standards provide language and a set of concepts for describing abstractions of real-world entities, or Features. ISO Features as information constructs provide great generality for characterizing phenomena, while retaining a consistent, normalized underlying concept model that facilitates integration and analysis. Many objects of interest to systematists, ecologists, and field biologists can be modeled usefully as Features. In this presentation, we illustrate the application of the Feature Model and the Observation and Measurements framework (OGC Document 05-087r3, Simon Cox, 2005, http://portal.opengeospatial.org/files/?artifact_id=14034) to biological collections data and to field observations. We demonstrate how vocabularies defined by the ABCD, Darwin Core, and TCS schemata, and some emerging work from the TDWG Geospatial Interest Group, fit naturally and compatibly into this structure.