Rhododendron is a very large genus of about 1,024 species of woody plants in the heath family (Ericaceae). They can be either evergreen or deciduous. Most species are native to eastern Asia and the Himalayan region, but smaller numbers occur elsewhere in Asia, and in North America, Europe and Australia.
The stamen is the pollen-producing reproductive organ of a flower. Collectively the stamens form the androecium.
Papaver is a genus of 70–100 species of frost-tolerant annuals, biennials, and perennials native to temperate and cold regions of Eurasia, Africa and North America. It is the type genus of the poppy family, Papaveraceae.
Catalpa bignonioides is a species of Catalpa that is native to the southeastern United States in Alabama, Florida, Georgia, Louisiana, and Mississippi. Common names include southern catalpa, cigartree, and Indian-bean-tree. It is commonly used as a garden and street tree.
Rhodora was a section of subgenus Pentanthera in the genus Rhododendron, that has since been discontinued.
Rhododendron subg. Hymenanthes is a subgenus of the genus Rhododendron, with a widespread distribution in the temperate Northern Hemisphere. The species are evergreen shrubs and small to medium-sized trees, with medium-sized to large leaves. The flowers are large, produced in terminal trusses of 5-40 together.
Rhododendron spinuliferum is a species of flowering plant in the family Ericaceae, native to Yunnan and Sichuan, China.
Rhododendron lochiae is a species of plant in the family Ericaceae, and is one of only two species of the genus Rhododendron that are native to Australia. It is found only in restricted areas of mountain–top cloud forest habitats within the Wet Tropics of Queensland World Heritage Site. The other species, Rhododendron viriosum, was only formally classified as a separate species in 2002.
Macleania is a genus of plants in the family Ericaceae.
Sida acuta, the common wireweed, is a species of flowering plant in the mallow family, Malvaceae. It is believed to have originated in Central America, but today has a pantropical distribution and is considered a weed in some areas.
Rhododendron section Tsutsusi was a subgenus of the genus Rhododendron, commonly referred to as the evergreen azaleas. In 2005 it was reduced to a section of subgenus Azaleastrum. Containing 80 - 117 species, it includes both deciduous and evergreen types and is distributed in Japan, China and northeastern Asia. They are of high cultural importance to the Japanese. Among the species in this genus lie the largest flowering azaleas.
Rhododendron section Vireya (vireyas) is a tropical group of Rhododendron species, numbering about 300 in all. Vireyas are native to southeastern Asia and range from Thailand to Australia.
Trompettia cardenasiana is a species of nightshade that is a spiny shrub bearing very small leaves, 0.35–0.5 cm (0.1–0.2 in) by 0.1–0.12 cm (0.04–0.05 in), a yellow trumpet-shaped campanulate flower, measuring about 3 cm (1.2 in) long and globose fruit. The growth habit is somewhat reminiscent of certain Lycium species. It is endemic to Bolivia, growing in dry, Andean valleys at altitudes of 2,000–2,500 m (6,600–8,200 ft) and 3,000–3,500 m (9,800–11,500 ft) and has been collected near the town of Cotagaita in Potosí Department.
Psychotria capensis, the bird-berry, is a southern African evergreen shrub or small tree. It belongs to a genus which is used medicinally in many regions, 'Psychotria' being from the Greek for 'rejuvenating', in reference to the healing properties of certain species. Kew lists some 2,000 species of Psychotria growing throughout the warmer regions of both hemispheres, but only two of them occur in southern Africa, namely P. capensis and P. zombamontana.
Rhododendron subgenus Azaleastrum is a subgenus of the genus Rhododendron.
Rhododendron subg. Choniastrum is a subgenus of the genus Rhododendron, originally a section of subgenus Azaleastrum it was elevated to subgenus rank after cladistic analysis revealed that together with Rhododendron it formed a major clade, distinct from other sections of Azaleastrum.
Rhododendron subsection Brachycalyx is a subsection of the genus Rhododendron, in section Tsutsusi, subgenus Azaleastrum, consisting of fifteen species of Azaleas from Asia.
Rhododendron subsection Tsutsusi is a subsection of the genus Rhododendron, in section Tsutsusi, subgenus Azaleastrum, consisting of 66 species of Azaleas.
Poortmannia is a genus of flowering plants belonging to the family Solanaceae. It is also in Solanoideae subfamily, tribe Solandreae Miers and also subtribe Juanulloinae. The genus has only one known species, Poortmannia speciosaDrake.
