Unit 19 (019)
1. Different growth habits in Cornus or Dogwoods
There are a number or shrubby red twig and yellow twigged dogwoods such as Cornus
alba, Cornus sanguinea, and Cornus sericea (= Cornus stolonifera).
Cornus canadensis is an acid soil ground cover dogwood.
Layered or horizontal branching is found on Cornus alternifolia, Cornus florida, and
Colorful bracts or modified leaves are found on Cornus florida and Cornus kousa.
Tepals is a term used when petals and sepals are indistinguishable from each other.
Magnolias and Tulips have tepals.
3. Useful Books
*1. Gardiner, Jim. 2000. Magnolias, A Gardeners Guide. Timber Press, 133 S.W.
2nd Ave., Ste. 450, Portland OR 97204. 329 pages.