Common hops is a perennial, herbaceous, rhizomatous climbing vine with distinctive 3- to 5-lobed leaves. Four varieties are recognized in North America, including the introduced European variety Humulus lupulus var. lupulus, and the native variety, var. neomexicanus (Flora North America 2010 ). The native variety is reported for BC by Flora North America and the USDA (2010). However, the varieties of hop are challenging to separate and in BC further work is needed to determine which varieties are confirmed as present and their invasive status.
Hops, made from the flowering cones of var. lupulus, is an important ingredient in beer-making. It is a source of prenylflavonoids, including 8-Prenylnaringenin, a potent phytoestrogen (Possemiers et al. 2006).
Perennial herbaceous vine; stems twining, rough, up to 10 m long.
Opposite, heart-shaped at the base, stipulate, 3-5 lobed, strongly toothed, rough-hairy, 4-10 cm long.
Inflorescence of unisexual axillary flowers; female flowers in cylindric spikes, greenish-yellow, 3-5 cm long, yellow-glandular especially at the base of the bracts; male flowers in panicles.
Achenes, hidden by enlarged bracts.
If more than one illustration is available for a species (e.g., separate illustrations were provided for two subspecies) then links to the separate images will be provided below. Note that individual subspecies or varietal illustrations are not always available.
Illustration Source: The Illustrated Flora of British Columbia