It is a succulent subshrub or shrub growing to tall, with densely spiny stems. Lemon verbena is a perennial shrub or subshrub growing to high. It is a tropical, densely branched evergreen subshrub. "Catharanthus roseus" is an evergreen subshrub or herbaceous plant growing tall. "Phlox diffusa" is a perennial herb subshrub. "Salvia yangii" is a deciduous perennial subshrub with an erect to spreading habit. It is a large herbaceous perennial subshrub, growing to . It is a small prostrate evergreen subshrub forming large colonies. Hyssop is a brightly coloured shrub or subshrub that ranges from in height. The plant is a tender perennial subshrub, with a densely branched stem. It is a vigorous evergreen climber growing to or more, sometimes growing as a subshrub. It is a compact, evergreen subshrub growing to . Silver Ragwort is a very white-wooly, heat and drought tolerant evergreen subshrub growing to tall. Individuals of this species can be considered an herb-forb or a subshrub. It is an annual or perennial herb or woody-based subshrub, growing to tall.