Humulus

Humulus

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Leaves of the Humulus plant

Humulus is a small genus of flowering plants in the family Cannabaceae, native to temperate regions of the Northern Hemisphere. The genus includes three species, the most well-known of which is Humulus lupulus, commonly known as hops. Hops are widely cultivated for use in the brewing industry, where they are used to add bitterness and aroma to beer.

Description

Humulus plants are herbaceous perennials that grow as climbing or trailing vines. They have a rapid growth rate and can reach lengths of up to 6 meters in a single growing season. The leaves are opposite, with a palmate shape and serrated edges. The plants are dioecious, meaning that male and female flowers are borne on separate plants.

Leaves

The leaves of Humulus are distinctive, with a rough texture and a lobed appearance. They are typically 3-5 lobed, with a deep green color. The leaf surface is covered with tiny hairs, giving it a slightly rough feel.

Flowers

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Close-up of Humulus flowers

The flowers of Humulus are small and inconspicuous. Male flowers are arranged in loose panicles, while female flowers form dense clusters known as strobiles or cones. The female cones are the part of the plant used in brewing.

Cultivation

Humulus lupulus is the primary species cultivated for commercial use. It requires a temperate climate with a well-defined growing season. The plants prefer well-drained soil and full sun exposure. They are typically grown on trellises or other support structures to accommodate their climbing habit.

Uses

The primary use of Humulus is in the brewing industry. The female cones, or hops, contain compounds that contribute bitterness, flavor, and aroma to beer. In addition to their use in brewing, hops have been used in traditional medicine for their sedative and antibacterial properties.

Related pages

• Cannabaceae
• Humulus lupulus
• Brewing
• Beer