| About.com: Trumpeting Trumpet Vines on the Landscape: Information about trumpet vines and how to attract hummingbirds with flowing vines. |
| Copihue or Chilean Bellflower, Lapageria rosea, The: Describes history, cultivation, and cultivars, also provides photographs. |
| Eastcheam Ivy: Contains information about different species of the plant along with photographs and resources. |
| Hoya: Tips on culture, germination and care. Information on the species history, native habitat and systematics. Contains a larger photo gallery with photos of flowers, whole plant and leaves. |
| Ivyfile: Ivy encyclopedia with cultivars, illustrations, and nursery sources. |
| Luffa.info: Information and photopgaphs about luffa sponge gourds. |
| Passion Flowers: Information about Passiflora collection with tips on growth and care in the UK climate. |
| Poison Ivy, Oak & Sumac Information Center: Pictures of various poisonous plants with pictures. Includes facts, remedies, treatment, question and answers, and FAQs. |
Classical
