Plant morphology share the same basic structure and development as leaves in other plants, and therefore cactus spines are homologous to leaves as well. This aspect of plant morphology overlaps with the study of plant evolution and paleobotany. Secondly, plant morphology observes both the vegetative (somatic) structures of plants, as well as the reproductive structures. The vegetative structures of vascular plants includes the study of the shoot system, composed of stems and leaves, as well as the root system. The reproductive structures are more varied, and are usually specific to a particular group of plants, such as flowers and seeds, fern sori,
Amyema fitzgeraldii Amyema fitzgeraldii Amyema fitzgeraldii, the pincushion mistletoe, is a species of flowering plant within the genus "Amyema", an epiphytic hemiparasitic plant of the family Loranthaceae endemic to Australia, and found in the Northern Territory, South Australia and Western Australia. The leaves are flat. The inflorescence is single group of 3-5 green and red flowers. The central flower has no bracts, unlike the surrounding flowers. It flowers from April to October. "A. fitzgeraldii" is only found on Acacias. "A. fitzgeraldii" was first described by Blakely in 1922 as "Loranthus fitzgeraldii", but in 1929 was placed in the genus "Amyema" by Danser.