| General Description | A spreading vine with large, oval shaped leaves. |
| ID Characteristic | Large, oval heart-shaped leaves that are dark green, flowers are yellow-green. A climbing, dense, vigorous vine. |
| Shape | Thin, green coloured vines that are long and intertwined; dense. |
| Cultivation | Thrives in moist, well-drained soil. Leaves wilt in droughty conditions. |
| Pests | Prone to attack from aphids and red spider mites. |
| Notable Specimens | Royal Botanical Gardens, Burlington, Ontario, Canada. |
| Flower/Leaf Bud Description | Buds are green like the stem, which makes them look as if they are covered in stem tissue. |
| Leaf Description | Leaves are about 9-22 cm in length and about the same in width. They are somewhat heart shaped and are dark green in colour. |
| Flower Description | Flowers are yellow-green and about 4 cm in length. They are shaped like a pipe, hence the common name. |
| Fruit Description | The fruit is a 6 ribbed small capsule, about 4-6 cm in length. |
| Colour Description | Dark green with green-yellow flowers highlighting the foliage. |
| Texture Description | Soft to medium textured plant. |
