Several herbaceous species have been studied for their potential as herbaceous biomass feedstocks. These will be discussed, but the broader focus of this presentation will be on characteristics of an ideal, or ideotype, feedstock. Those desirable traits include: readily bioengineered, perennially productive, minimal anti-quality factors, not weedy/invasive, readily established (using no-till methods preferably), flexible harvests, no or few pests, drought and heat tolerant, low input requirements, et al.