Rhododendron subg. Hymenanthes

Rhododendron subg. Hymenanthes
Rhododendron ponticum
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Asterids
Order:	Ericales
Family:	Ericaceae
Genus:	Rhododendron
Subgenus:	Rhododendron subg. Hymenanthes (Blume) K.Koch
Sections
Ponticum Pentanthera

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 (up to 20 m tall), with medium-sized to large leaves (very large, over 40 cm long, in a few species). The flowers are large, produced in terminal trusses of 5-40 together.^[1]

The subgenus includes two sections, Rhododendron sect. Ponticum, divided into 24 subsections and about 140 species, and (since 2005) Rhododendron sect. Pentanthera^[2]

Section Ponticum (24 subsections)

• R. subsect. Arborea (3 species)
• R. subsect. Argyrophylla (6 species)
• R. subsect. Auriculata (one species, R. auriculatum)
• R. subsect. Barbata (2 species)
• R. subsect. Campanulata (2 species)
• R. subsect. Campylocarpa (4 species)
• R. subsect. Falconera (7 species)
• R. subsect. Fortunea (10 species)
• R. subsect. Fulgensia (2 species)
• R. subsect. Fulva (2 species)
• R. subsect. Glischra (5 species)
• R. subsect. Grandia (9 species)
• R. subsect. Griersoniana (one species, R. griersonianum)
• R. subsect. Irrorata (7 species)
• R. subsect. Lanata (one species, R. lanatum)
• R. subsect. Maculifera (6 species)
• R. subsect. Neriiflora (19 species)
• R. subsect. Parishia (3 species)
• R. subsect. Pontica (13 species)
• R. subsect. Selensia (5 species)
• R. subsect. Taliensia (20 species)
• R. subsect. Thomsonia (7 species)
• R. subsect. Venatora (one species, R. venator)
• R. subsect. Williamsiana (one species, R. williamsianum)

Section Pentanthera (2 subsections)

• R. subsect. Pentanthera (G. Don) Pojarkova (15 species)
• R. subsect. Sinensia (one species: Rhododendron molle)