Glossary of plant morphology flowers, a tube or cup-like hypanthium (floral tube) is formed above or around the ovary and bears the sepals, petals, and stamens. There may also be a nectary producing nectar. Nectaries may develop on or in the perianth, receptacle, androecium (stamens), or gynoecium. In some flowers nectar may be produced on nectariferous disks. Disks may arise from the receptable and are doughnut- or disk-shaped. They may also surround the stamens (extrastaminal), be at the stamen bases (staminal), or be inside the stamina (intrastaminal). Finally, the actual reproductive parts form the innermost layers of the flower. These leaf primordia become specialised
Lophospermum scandens with age and developing a woody caudex – a swollen, bulb-like structure at the base of the stem. The leaf stalks (petioles) are long, occasionally twining to grasp supports, thus enabling the plant to climb. The leaves are narrowly heart-shaped, long by wide, with a pointed apex and toothed edges (dentate or crenate). The leaves and stems are sparsely covered with short hairs. "Lophospermum scandens" flowers and fruits from May to November in its native habitat. The flowers are borne singly on stems (peduncles) long. The calyx has sepals that are generally narrowly ovate, long and wide at the base,