Harrisia Britton
  • in Bull. Torrey Bot. Club 35: 561. 1909.
  • Applecactus [for William H. Harris, 1860-1920, Superintendent of Public Gardens and Plantations of Jamaica]

Cite taxon page as 'WFO (2023): Harrisia Britton. Published on the Internet;http://www.worldfloraonline.org/taxon/wfo-4000016970. Accessed on: 30 Mar 2023'

General Information

Shrubs, often treelike, erect or old plants with branches usually ascending, clambering, or prostrate, sparingly branched or unbranched. Roots diffuse (sometimes tuberlike). Stems unsegmented, green, long cylindric, 100-600 × 2.5-6 cm, glabrous; ribs 8-12, rounded, low, less than 1 cm deep, shallowly to indistinctly tuberculate; areoles ca. 2 cm apart along ribs, circular to oval, short woolly, sometimes subtended by small, subulate, deciduous leaves; areolar glands not apparent; cortex and pith mucilaginous. Spines 6-17 per areole, usually porrect to ascending, white to pinkish or yellow to light brown, aging gray, sometimes with tips darker or yellowish, acicular, straight, ± terete, 10-40 × 0.5-0.75[-1.5] mm, hard, smooth and glabrous; radial spines and central spines not clearly distinguishable. Flowers nocturnal, remaining open next day, lateral or terminal on stems at least 1 year old, funnelform, 12-20[-25] × 8-12 cm; outer tepals green to reddish or purplish, linear to lanceolate or narrowly oblong, 50-60 × 4.5-6 mm, margins entire; inner tepals white to pinkish, 60 -75 × 12-20 mm, margins entire or denticulate; ovary usually conspicuously tuberculate, scaly, spineless or spines represented by soft and silky to stiff hairs [or spiny]; scales entire; stigma lobes 8-15, yellow-green to white, 6-9 mm. Fruits indehiscent or splitting irregularly from apex toward base, green to yellow, red, or orange-red, spheric to ovoid-spheric, [30-]40-75[-80] × [30-]40-75[-80] mm, usually spineless (or spines bristlelike) [or slender acicular]; scales deciduous [sometimes persistent]; pulp white; floral remnant usually persistent. Seeds black, broadly ovoid or broadly ellipsoid, 2-3 × 1.5 mm, warty. x = 11.

  • Provided by: [B].Flora of North America @ efloras.org
    • Source: [
    • 1
    • ]. 

    Other Local Names

    Applecactus [for William H. Harris, 1860-1920, Superintendent of Public Gardens and Plantations of Jamaica]

      Taxonomic Status Reference

    • 1 Franck, A. R. 2016: Monograph of Harrisia (Cactaceae). ?in-title? 2016-85: 1-159.

     Information From

    Caryophyllales. World Flora Online Data. 2022.
    • A CC0 1.0 Universal (CC0 1.0).
    Flora of North America @ efloras.org
    'Flora of North America @ eFloras (2008). Published on the Internet http://www.efloras.org/flora_page.aspx?flora_id=1 [accessed August 2016]' Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
    • B Flora of North America Association
    World Flora Online Consortium
    World Flora Online Data. 2017.
    • C CC0 1.0 Universal (CC0 1.0).