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
Trichostema simulatum long cyme of flowers growing from the stem between each leaf pair. Each flower has a hairy calyx of sepals with triangular points and a tubular, lipped purple corolla. The four protruding stamens are curved. Trichostema simulatum Trichostema simulatum is a species of flowering plant in the mint family known by the common name Siskiyou bluecurls. It is native to the southern Cascade Range in northern California and southern Oregon, and in the northern Sierra Nevada in California. It grows in open and generally sandy or gravelly sites of Yellow pine forests and adjacent habitats, at in elevation. "Trichostema simulatum"