Hops

Humulus

Humulus japonicus ( Japonicus Hop )
A vigorous, prickly-stemmed, annual vine, reaching up to 12 feet in height, that is native to far eastern Russia, China, Korea and Japan. It is usually found in wastelands and woodland edge in the wild.
The toothed and 5 to 9 palmately-lobed leaves are up to 6 inches in length. The foliage is mid-green.
The creamy-white flowers appear during late summer.

* photos taken by Mark A. Garland @ USDA-NRCS PLANTS Database

'Variegata'
Less vigorous which may be a good thing for many gardeners.
Its deep green foliage is heavily and boldly splashed in white. It looks great on fence or trellis where it has climbing support.

Humulus lupulus ( European Hop )
A very fast growing ( often invasive ) and spreading, herbaceous perennial vine, reaching up to 30 ( rarely over 20 ) feet in height. It is native to moist woods in most of Europe to central Asia. The subspecies var. cordifolius is native to Japan. The stems die back to the thick rootstock during winter.
The foliage resembles that of Grapes. The leaves, up to 6 x 4.5 inches in size, are deep green above, bright green beneath.
The male and female flowers occur on separate plants during early autumn. The female plants only produce hops.
Hardy zones 3 + in full sun to partial shade on deep, fertile soil. It thrives well in harsh climates including south-central and southeastern Alaska as well as southern Manitoba and Saskatchewan. Cut to ground after autumn frosts. Propagation is from root division after fall frost or early spring.

* photo of unknown internet source

* photos taken on Oct 1 2020 in Columbia, MD

'Aureus' ( Golden Hop )
Attractive golden-yellow foliage. It is a male form that does not produce hops.

* photo of unknown internet source

'Blue Northern'
Attractive blue-green foliage.

'Nugget'
Very hardy form with yellowish-green foliage.