Humulus L.


Latinised form of the German name

Peter Hamilton, Graham Hughes and Roger Spencer

Right-hand (dextrorse) twining perennial or annual herbs. Leaves opposite, stalked, palmately lobed, heart-shaped at the base. Flowers unisexual. Sexes on separate plants. Male flowers in loose clusters with the calyx 5-lobed; stamens 5. Female flowers cone-like in a spike. Fruit an achene.

The female flower 'cones' of H. lupulus are used for flavouring beer with a bitter extract, lupulin or alpha acid.

3 species from temperate Eurasia.

Small (1978).

Source: Hamilton, P.; Hughes, G.; Spencer, R (1997). Humulus. In: Spencer, R.. Horticultural Flora of South-eastern Australia. Volume 2. Flowering plants. Dicotyledons. Part 1. The identification of garden and cultivated plants. University of New South Wales Press.

kingdom Plantae
phylum   Tracheophyta
class    Magnoliopsida
superorder     Rosanae
order      Rosales
family       Cannabaceae
Higher taxa
Subordinate taxa
species         Humulus lupulus L.