home / medterms medical dictionary a-z list / ortho- (prefix) definition Medical Definition of Ortho- (prefix) Ortho- (prefix): Prefix meaning straight or erect. From the Greek orthos that means just that: straight or erect. Examples of terms involving ortho- include orthodontics (straightening the teeth), orthopaedics (straightening the child), orthopnea (breathing easily only in an upright position), orthostatic (an upright posture), etc.
Yellow. âKnockoutâ roses also come in yellow, and this color is often used to contrast with red and pink roses. The vibrant yellow is also attractive to butterflies and birds and is particularly attractive to bees.he âRainbow Knockoutâ rose (Rosa x âRadcorâ) grows in USDA zones 5 through 10 and features two colors within the same flower. The outside of the flat-form flower features a bright pink color, but the petals turn bright yellow near the center. 1  Dig This.
Roses are used as cut flowers, screens, borders, containers, hedges, ground cover, wall cover, and of course, as specimen plants in the landscape. There are literally thousands of rose types.Bloom color, bloom shape, foliage, size, fragrance and plant shape are all things to look at when shopping for roses.This guide will help you sort through all the varieties of roses.here are literally thousands of rose types. Bloom color, bloom shape, foliage, size, fragrance and plant shape are all things to look at when shopping for roses. This guide will help you sort through all the varieties of roses.