HRT 212 Study Guide - Comprehensive Final Exam Guide - White, Shrub, Rust
Document Summary
Shrubs 1: crataegus crus-galli, cockspur hawthorn (shrub) Glossy dark green leaves, purple-red fall color. Tiny tiny red buds: crataegus laevigata, english hawthorn (tree) White flowers, but most cultivars have been selected for pink-red flowers in may. Site tolerance: broad or wide spread adaptability, environment and soil conditions, will fit in because it has tolerance to diversity. Paul"s scarlet: crataegus phaenopyrum, washington hawthorn (tree) Crabapples (separate matching) form, flower, fruit, resistance to scab. Habit: low mound, spreading; broad spreading; upright, columnar, weeping. Foliage: medium green, obovate, fall color with yellow or non-significant. Flowers: white, pink, rose, red, flower buds may be one color opening to a different color pink in bud, flowering white. Fruit: red, yellow, orange, ranging in size up to 2 if fruits are larger than 2 it is classified as an apple. Breeders are interested in resistance or tolerance to 3 major diseases: apple. Scab, cedar apple rust (jelly like horns), fire blight fill in the blank.
