Rosales genera

Cannabis () is a genus of flowering plants in the family Cannabaceae that is widely accepted as being indigenous to and originating from the continent of Asia. However, the number of species is disputed, with as many as three species being recognized: Cannabis sativa, C. indica, and C. ruderalis. Alternatively, C. ruderalis may be included within C. sativa, or all three may be treated as subspecies of C. sativa, or C. sativa may be accepted as a single undivided species.

Humulus, or hop, is a small genus of flowering plants in the family Cannabaceae. The hop is native to temperate regions of the Northern Hemisphere. Hops are the female flowers (seed cones, strobiles) of the hop species H. lupulus; as a main flavor and aroma ingredient in many beer styles, H. lupulus is widely cultivated for use by the brewing industry.

Elaeagnus is a genus of about 90 species of flowering plants in the family Elaeagnaceae. Species of the genus are commonly known as silverberry or oleaster.

Celtis is a genus of about 60–70 species of deciduous trees, commonly known as hackberries or nettle trees, in the hemp family Cannabaceae. It has a cosmopolitan distribution.

Zelkova (from the Georgian dzelkva, 'stone pillar') is a genus of six species of deciduous trees in the elm family Ulmaceae, native to southern Europe, and southwest and eastern Asia. They vary in size from shrubs (Z. sicula) to large trees up to tall (Z. carpinifolia). The bark is smooth, dark brown. Unlike elms, the branchlets are never corky or winged. The leaves are alternate, with serrated margins, and (unlike the related elms) a symmetrical base to the leaf blade. The leaves are in two distinct rows; they have pinnate venation and each vein extends to the leaf margin, where it terminates

Shepherdia, commonly called buffaloberry or bullberry, is a genus of small shrubs in the Elaeagnaceae family. The plants are native to northern and western North America. They are non-legume nitrogen fixers.

genus of plants

Dirachma is the sole genus of the family Dirachmaceae. The genus had been monotypic, its sole species being the woody plant Dirachma socotrana, until a second, herbaceous, species, Dirachma somalensis, was discovered in Somalia and described in 1991.

Aphananthe is a small genus of evergreen trees in the family Cannabaceae. Around six species are recognised, found in Korea, Japan, Madagascar, South-east Asia, Mexico, Central America, and Australia. Leaves are alternate on the stem and toothed. Flowers are unisexual, fruit form as drupes. The generic name of Aphananthe refers to insignificant flowers. Species include Aphananthe aspera and Aphananthe philippinensis.

Gironniera, is a genus of deciduous trees in the family Cannabaceae. It contains six species native to Indochina, southern China, Malesia, and Papuasia.

Holoptelea is a genus of deciduous trees in the family Ulmaceae.

Lozanella is a genus of flowering plants belonging to the family Cannabaceae.

Phyllostylon is a genus of plant in family Ulmaceae.

Ampelocera is a genus of low- to mid-elevation rainforest trees of the family Ulmaceae that occur from Mexico to Brazil.

Pteroceltis is a genus of small trees in the family Cannabaceae and containing the living species Pteroceltis tatarinowii. The genus is now restricted to an endemic range in China and Mongolia. The genus has a fossil record which includes species described from Korea, Japan, Germany, and the United States.