Humulus lupulus (central and southern Europe, western Asia, North America)
Habit: Mat-like leader, 3-6 m tall, sometimes even 8-12 m and 2.5 to 3 m wide; fast-growing perennial that completely regenerates every year; extremely fast-growing, 0.5-1 m per week in the vegetation period; youngest shoots edible like asparagus.
Flowers: Dioecious, pistillate inflorescences inconspicuous yellow-green, like cones; male inflorescences in greenish panicles; pollination from July to August.
Fruits: Greenish to brownish, like cones, up to 3 cm long syncarpy; very bitter taste.
Leaves: Green; hand-size, three to five, coarse; yellow in autumn.
Roots: Tough, far-reaching shallow root system.
Demands: Sun to semi-shade, tolerates heat, likes warmth, frost hardy; high humidity.
Soil: Fresh to damp; moderately acidic to alkaline; likes very nutritious, sandy-loamy to clay substrates.
Hardiness: Zone 7