A perennial shrub refers to a type of plant that lives for multiple years and has a woody stem. It is a small to medium-sized plant that typically has multiple branches coming out from its base. Full definition
It is thought that Harmel, a woody perennial shrub with small white flowers, ingested through history by different cultures in different ways, not only formed the basis of «Turkish Red» dyes but also inspired the designs in which they were used with its hallucenogenic properties. (rodeo-gallery.com)
According to Wikipedia, Yucca is a genus of perennial shrubs and trees in the family Asparagaceae, subfamily Agavoideae. (thepaleomom.com)
Chambers et al. (2007) predict that the high flammability of this winter annual weed will increase wildfire frequency and thereby transform large areas of sagebrush steppe from perennial shrub to annual grass dominance decreasing the land's forage utility. (montanaclimate.org)