Amaranthus acanthochiton Sauer
  • Madroño
  • Greenstripe, greenstripe amaranth

Cite taxon page as 'WFO (2019): Amaranthus acanthochiton Sauer. Published on the Internet; Accessed on: 22 Oct 2019'

General Information

Plants glabrous or glabrescent. Stems erect, much-branched, 0.1-0.8 m; proximal branches ascending. Leaves: petiole shorter than blade; blade narrowly linear-lanceolate to linear, 2-8 × 0.2-1.2(-1.7) cm, base narrowly cuneate to narrowly decurrent, margins erose, crispate, or irregularly undulate, apex acute to subobtuse. Inflorescences terminal spikes, erect, usually stiff. Bracts completely enfolding flower; of pistillate flowers with prominent excurrent midrib, venation distinct, broadly triangular to deltate, 5+ mm, longer than tepals, margins erose, crenate, or denticulate, apex acute or acuminate; of staminate flowers shorter than tepals, apex acute. Pistillate flowers: outer tepals rudimentary, less that 1.2 mm; inner tepals with venation distinct, 3-4(-5) mm, apex acute, with terminal mucro; style branches spreading; stigmas 3. Staminate flowers: tepals 5, equal or subequal, 2-3 mm, margins erose to denticulate, outer tepals with apex subobtuse to acute-acuminate; inner tepals with apex distinctly acuminate or mucronulate; stamens 5. Utricles light brown, elliptic to obovate-elliptic, 2(-2.5) mm, shorter than outer tepals, slightly rugose to smooth. Seeds dark reddish brown to brown, 1-1.3 mm diam., shiny.

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

    Other Local Names

    Greenstripe, greenstripe amaranth

     Information From

    World Flora Online Data. 2017.
    • A CC0 1.0 Universal (CC0 1.0).
    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.
    • B Flora of North America Association
    World Flora Online consortium
    World Flora Online Data. 2018.
    • C CC0 1.0 Universal (CC0 1.0).