'Herbaspirillum' is a genus of bacteria, including the nitrogen-fixing Herbaspirillum lusitanum. Although usually found in soil environments, it has also been identified as a contaminant of DNA extraction kit reagents, which may lead to its erroneous appearance in microbiota or metagenomic datasets.
This genus contains microbial species that can reside in the human gastrointestinal tract. [PMC 4262072]
Microbial Abundance Data: Herbaspirillum (Percent of total population with standard deviation [PMID: 22698087])