Plantae > Tracheophyta > Magnoliopsida > Rosales > Cannabaceae > Humulus > Humulus lupulus

Humulus lupulus (common hops; hops; common hop)

Synonyms:

Wikipedia Abstract

Humulus lupulus (common hop or hop) is a species of flowering plant in the Cannabaceae family, native to Europe, western Asia and North America. It is a dioecious, perennial, herbaceous climbing plant which sends up new shoots in early spring and dies back to a cold-hardy rhizome in autumn. Strictly speaking it is a bine rather than a vine, using its own shoots to act as supports for new growth.
View Wikipedia Record: Humulus lupulus

Infraspecies

Humulus lupulus var. cordifolius
Humulus lupulus var. lupuloides (common hop)
Humulus lupulus var. lupulus (common hop)
Humulus lupulus var. neomexicanus (common hop)
Humulus lupulus var. pubescens (common hop)

Attributes

Allergen Potential [1]  Medium-Low
Edible [2]  May be edible. See the Plants For A Future link below for details.
Flower Type [2]  Dioecious
Hazards [2]  Skin contact with the plant causes dermatitis in sensitive people; Hops dermatitis has long been recognized. Not only hands and face, but legs have suffered purpuric eruptions due to hop picking. Although only 1 in 3,000 workers is estimated to be treated, one in 30 are believed to suffer dermatitis; Dislodged hairs from the plant can irritate the eyes;
Lifespan [2]  Perennial
Pollinators [2]  Wind
Scent [2]  The flowers cast a pleasing scent.
Structure [2]  Vine
Usage [2]  A fine brown dye is obtained from the leaves and flower heads; An essential oil from the female fruiting heads is used in perfumery; Average yields are 0.4 - 0.5%; Extracts of the plant are used in Europe in skin creams and lotions for their alleged skin-softening properties; A fibre is obtained from the stems; Similar to hemp (Cannabis sativa); It is sometimes used for filler material in corrugated paper or board products, but is unsuited for corrugated paper because of low pulp yield and high chemical requirement, or for production of high-grade pulp for speciality paper; The fibre is very durable but it is difficult to separate, the stems need to be soaked beforehand for a whole winter; A paper can also be made from the fibre, the stems are harvested in the autumn, the leaves removed and the stems steamed until the fibres can be removed. The fibre is cooked for 2 hours with lye and then hand pounded with mallets or ball milled for 2
Height [2]  20 feet (6 m)
Light Preference [3]  Mixed Sun/Shade
Soil Acidity [3]  Neutral
Soil Fertility [3]  Rich
Soil Moisture [3]  Damp
View Plants For A Future Record : Humulus lupulus

Protected Areas

Predators

Consumers

Parasitized by 
Cuscuta europaea (greater dodder)[6]
Phacidiopycnis tuberivora[6]
Podosphaera macularis[6]
Pseudoperonospora cubensis[6]

External References

USDA Plant Profile

NatureServe Explorer

Citations

Attributes / relations provided by
♦ 1Derived from Allergy-Free Gardening OPALS™, Thomas Leo Ogren (2000)
♦ 2Plants For A Future licensed under a Creative Commons Attribution 4.0 License
♦ 3ECOFACT 2a Technical Annex - Ellenberg’s indicator values for British Plants, M O Hill, J O Mountford, D B Roy & R G H Bunce (1999)
♦ 4Biological Records Centre Database of Insects and their Food Plants
♦ 5HOSTS - a Database of the World's Lepidopteran Hostplants Gaden S. Robinson, Phillip R. Ackery, Ian J. Kitching, George W. Beccaloni AND Luis M. Hernández
♦ 6Jorrit H. Poelen, James D. Simons and Chris J. Mungall. (2014). Global Biotic Interactions: An open infrastructure to share and analyze species-interaction datasets. Ecological Informatics.
♦ 7Ben-Dov, Y., Miller, D.R. & Gibson, G.A.P. ScaleNet 4 November 2009
Abstract provided by DBpedia licensed under a Creative Commons License
Species taxanomy provided by GBIF Secretariat (2022). GBIF Backbone Taxonomy. Checklist dataset https://doi.org/10.15468/39omei accessed via GBIF.org on 2023-06-13; License: CC BY 4.0