Contains information on the distinguishing features of the group. Includes propagation, watering, pest and diseases and photos.

Provides information on the characteritics of the plant. With photos.

Provides information on the distinguishing characteristics of the group. Includes culture, usage and photos.

Provides information on the distingshing characteristics of the plant. Includes culture, fliage, flowers, uses and variants.

Contains information on the gricultural Experiment Station in Fayetteville. Includes history, findings and photos.