Great question! In the world of botany, the terms 'half shrub' and 'shrub' are not commonly used to classify plants. However, plants can display a variety of growth habits and sometimes exhibit traits of multiple plant categories. While 'half shrub' may not be a recognized term, it is possible that it is colloquially used to describe plants with characteristics of both shrubs and another plant type. The botanical world is full of fascinating variations, and it's always exciting to encounter unique plant specimens that defy traditional classifications.