Log In New Account Sitemap
  • Home
  • Specimen Search
    • Search Collections
    • Map Search
    • Exsiccati Search
  • Images
    • Image Browser
    • Search Images
  • Flora Projects
    • Arizona
    • New Mexico
    • Colorado Plateau
    • Plant Atlas of Arizona (PAPAZ)
    • Sonoran Desert
    • Teaching Checklists
  • Agency Floras
    • NPS - Intermountain
    • USFWS - Region 2
    • BLM Flora
    • Coronado NF
  • Dynamic Floras
    • Dynamic Checklist
    • Dynamic Key
  • Additional Websites
    • New Mexico Flores
    • Plant Atlas Project of Arizona (PAPAZ)
    • Southwest Colorado Wildflowers
    • Vascular Plants of the Gila Wilderness
    • Consortium of Midwest Herbaria
    • Consortium of Southern Rocky Mountain Herbaria
    • Intermountain Region Herbaria Network (IRHN)
    • Mid-Atlantic Herbaria
    • North American Network of Small Herbaria (NANSH)
    • Northern Great Plains Herbaria
    • Red de Herbarios del Noroeste de México (northern Mexico)
    • SERNEC - Southeastern USA
    • Texas Oklahoma Regional Consortium of Herbaria (TORCH)
  • Resources
    • Symbiota Docs
    • Video Tutorials
    • Contributing Collections
    • How to contribute specimens
Alternanthera
Family: Amaranthaceae
Alternanthera image
Patrick Alexander
  • FNA
  • Gleason & Cronquist
  • Resources
Steven E. Clemants in Flora of North America (vol. 4)
Herbs or subshrubs, annual or perennial. Stems prostrate, decumbent, ascending, erect, or floating, indumentum of simple trichomes. Leaves opposite, sessile or petiolate; blade lanceolate to ovate, ovate-rhombic, or obovate-rhombic, margins entire. Inflorescences axillary or terminal, sessile or pedunculate, several-flowered cylindric spikes or globose heads, without immediately subtending leaves; bracts and bracteoles scarious. Flowers bisexual; tepals 5, distinct; stamens 3-5; filaments connate basally into tube or short cup; pseudostaminodes 5, alternating with stamens; ovule 1; style 1, ca. 0.2 mm; stigma capitate or rarely 2-lobed. Utricles compressed, ovoid or obovoid, indehiscence. Seeds 1, reddish brown, lenticular or ovoid-oblong.
Vascular plants of NE US and adjacent Canada
Fls perfect; sep 5, distinct, unequal, white or greenish; filaments united at least below, the 3-5 antheriferous filaments alternating with 3-5 sterile ones; anthers bisporangiate and unilocular, style solitary, with a capitate stigma; ovule one; utricle membranous, indehiscent; annual or perennial herbs or shrubs with opposite, petiolate or sessile, entire or obscurely denticulate lvs; fls white or greenish, in terminal heads or short spikes. 170, warm reg.

Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.

©The New York Botanical Garden. All rights reserved. Used by permission.
Show all taxa || << 1 - 50 taxa >>
Alternanthera albida
Image of Alternanthera albida
Alternanthera amoena
Image of Alternanthera amoena
Alternanthera angustifolia
Images
not available
Alternanthera aquatica
Images
not available
Alternanthera asterotricha
Images
not available
Alternanthera bahiensis
Image of Alternanthera bahiensis
Alternanthera bettzichiana
Image of Alternanthera bettzichiana
Alternanthera bettzickiana
Image of Alternanthera bettzickiana
Alternanthera brasiliana
Image of Alternanthera brasiliana
Alternanthera caracasana
Image of Alternanthera caracasana
Alternanthera costaricensis
Image of Alternanthera costaricensis
Alternanthera crucis
Image of Alternanthera crucis
Alternanthera dentata
Image of Alternanthera dentata
Alternanthera denticulata
Image of Alternanthera denticulata
Alternanthera dolichocephala
Images
not available
Alternanthera echinocephala
Image of Alternanthera echinocephala
Alternanthera elongata
Image of Alternanthera elongata
Alternanthera ficoidea
Image of Alternanthera ficoidea
Alternanthera flava
Images
not available
Alternanthera flavescens
Image of Alternanthera flavescens
Alternanthera flavicoma
Image of Alternanthera flavicoma
Alternanthera flavogrisea
Image of Alternanthera flavogrisea
Alternanthera floridana
Images
not available
Alternanthera frutescens
Image of Alternanthera frutescens
Alternanthera glabra
Image of Alternanthera glabra
Alternanthera gracilis
Image of Alternanthera gracilis
Alternanthera halimifolia
Image of Alternanthera halimifolia
Alternanthera hasslerana
Images
not available
Alternanthera hassleriana
Image of Alternanthera hassleriana
Alternanthera hirtula
Image of Alternanthera hirtula
Alternanthera ingramiana
Images
not available
Alternanthera jacquinii
Images
not available
Alternanthera kurtzii
Image of Alternanthera kurtzii
Alternanthera laguroides
Image of Alternanthera laguroides
Alternanthera lanceolata
Image of Alternanthera lanceolata
Alternanthera manillensis
Images
not available
Alternanthera maritima
Image of Alternanthera maritima
Alternanthera markgrafii
Image of Alternanthera markgrafii
Alternanthera martii
Image of Alternanthera martii
Alternanthera menziesii
Images
not available
Alternanthera mexicana
Image of Alternanthera mexicana
Alternanthera moquinii
Image of Alternanthera moquinii
Alternanthera obovata
Images
not available
Alternanthera olivacea
Images
not available
Alternanthera paniculata
Image of Alternanthera paniculata
Alternanthera paronichyoides
Image of Alternanthera paronichyoides
Alternanthera paronychioides
Image of Alternanthera paronychioides
Alternanthera philoxeroides
Image of Alternanthera philoxeroides
Alternanthera porrigens
Image of Alternanthera porrigens
Alternanthera portoricensis
Images
not available
The National Science Foundation
Development supported by National Science Foundation Grants (DBI 9983132, BRC 0237418, DBI 0743827, DBI 0847966)
Powered by Symbiota