Humulus lupulus L.
  • Sp. Pl.
  • Hop(s), common hop(s), houblon

Cite taxon page as 'WFO (2020): Humulus lupulus L. Published on the Internet; Accessed on: 08 Apr 2020'

General Information

Plants perennial. Petiole usually shorter than leaf blade; leaf blade 3-5(-7)-lobed, sometimes simple, 4-11 × 4-8 cm, abaxially glabrous or with scattered soft pubescence but without rigid spinulose hairs on veins, adaxially with few or no cystolith hairs marginally when young, base cordate, margin coarsely serrate, apex acute. Female flowers 2 per bract at least in middle of inflorescence; bracts imbricated into a globose spike. Infructescences globose, 3-4 cm in diam.; bracts ovoid, 1.5-2 cm, dry, membranous, apex acute. Achenes flat, included in bracts. Fl. autumn.

  • Provided by: [D].Flora Of CHina @
    • Source: [
    • 1
    • ]. 

    Herbs , perennial, rhizomatous, 1-6(-7) m. Stems branched. Leaves: petioles usually shorter than blades. Leaf blade ± cordate, palmately 3-7-lobed, sometimes unlobed, 3-15 cm, margins dentate-serrate; surfaces abaxially with veins glabrous or with soft pubescence, without straight, erect hairs, glands yellow, adaxially margins of younger leaf blades with few or no cystolithic hairs. Inflorescences: staminate with flowers whitish to yellowish, anthers glandular; pistillate usually racemes, 10-20 mm, pedunculate; bracteole margins not ciliate-hairy. Infructescences pendulous, pale yellow, conelike, ovoid to oblong, (1-)2-3(-6) cm; bracteoles with yellow glands. Achenes yellowish, ovoid, compressed, glandular. 2 n = 20, including 2 or more sex-determining chromosomes.

  • Provided by: [C].Flora of North America @
    • Source: [
    • 2
    • ]. 

    "Rhizomatous perennial vine to 10 m; principal lvs as broad as long, cordate at base, 3-lobed to below the middle, the upper lvs often broadly ovate and lobeless; petiole shorter than the blade; staminate infls 5–15 cm; pistillate spikes 1 cm, becoming 3–6 cm, the persistent, accrescent bracts entire and mostly blunt, stramineous, very glandular at base; 2n=20. Moist soil; N.S. to Man., Mont., and Calif., s. to N.C., Ark., and Ariz., and widely distributed in the Old World. July, Aug. 5 geographically significant vars., 3 in our range."

  • Provided by: [B].New York Botanical Garden
    • Source: [
    • 3
    • ]. 

    Other Local Names

    Hop(s), common hop(s), houblon

     Information From

    World Flora Online Data. 2017.
    • A CC0 1.0 Universal (CC0 1.0).
    New York Botanical Garden
    Descriptions of plants should be attributed to the full citation for each individual article, chapter or book that is the source for each record, which should include the authors of original publication.
    • B Content licensed under Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License
    Flora of North America @
    'Flora of North America @ eFloras (2008). Published on the Internet [accessed August 2016]' Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
    • C Flora of North America Association
    Flora Of CHina @
    'Flora of China @ eFloras (2008). Published on the Internet [accessed August 2016]' Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
    • D Missouri Botanical Garden
    World Flora Online consortium
    World Flora Online Data. 2018.
    • E CC0 1.0 Universal (CC0 1.0).