[!lemma=commonly] [lemma=as] [lemma=flower] □
[!lemma=commonly] [lemma=as] [lemma=flower] [□]
[!lemma=commonly] [lemma=as] [lemma=flower] □ □
When choosing lilies , consider plant height and bloom season as well as flower color . The form of the plant , whether it is a herb , a shrub , or a tree , and its size should be noted , along with other distinctive features such as flower color ( color may fade as the plants are dried ) . In the process , they determined which genes influenced traits related to pollination : such as flower color , size , and shape ; nectar volume and concentration ; and pistil and stamen length . Mendel invented the dihybrid cross to determine if different traits of pea plants , such as flower color and seed shape , were inherited independently . He observed different genetic lines for such characteristics as flower color , plant height , seed texture , and followed their inheritance patterns for many generations to determine the basic rules of inheritance that are stil in use today . Vegetative propagation is an important component of ornamental plant production , because noteworthy characteristics such as flower color or leaf variegation remain true to type from the stock plant , unlike the varied results achieved through seedling propagation .