• NSF NEON | Open Data to Understand our Ecosystems
  • Biorepository Data Portal

  • Home
  • Search
    • Sample search
    • Map search
    • Dynamic Species List
    • Taxonomic Explorer
  • Images
    • Image Browser
    • Image Search
  • Datasets
    • Research Datasets and Special Collections
    • Carabidae Checklists with Keys
    • Checklist: Research Sites - Invertebrates
    • Checklist: Research Sites - Plants
    • Checklist: Research Sites - Vertebrates
  • Sample Use
    • Sample Use Policy
    • Sample Request
    • Sample Archival Request
    • Dataset Publishing
  • How to Cite
  • Additional Information
    • Tutorials and Help
    • Biorepository Staff
    • About NEON
    • NEON Data Portal
    • ASU Biocollections
    • About Symbiota
  • Getting Started
Login New Account Sitemap
Eriogonum thornei (Reveal & Henr.) L.M. Shultz  

No occurrences found

Family: Polygonaceae
Thorne's buckwheat
[Eriogonum ericifolium subsp. thornei (Reveal & Henrickson) R.F. Thorne, moreEriogonum ericifolium var. thornei Reveal & Henrickson]
Images
not available
  • FNA
  • Resources
James L. Reveal in Flora of North America (vol. 5)
Subshrubs, spreading and matted, not scapose, 0.4-0.8 × 0.4-1(-2.5) dm. Stems spreading, with persistent leaf bases, up to 4 height of plant; caudex stems compact; aerial flowering stems spreading, slender, solid, not fistulose, 0.1-0.2 dm, floccose to slightly tomentose. Leaves cauline, 1 per node or fasciculate; petiole 0.01-0.02 cm, tomentose; blade linear, 0.4-0.6 × 0.05-0.1 cm, densely white-tomentose adaxially, finely villous and green adaxially, margins revolute.  Inflorescences umbellate-cymose, compact, 0.5-1 × 0.5-1 cm; branches usually dichotomous, otherwise with secondaries suppressed, glabrous or nearly so; bracts 3, scalelike, linear, 0.5-1 mm. Peduncles absent. Involucres 1 per node, turbinate, 1.5-2 × 1-1.5 mm, floccose; teeth 5, erect, 0.4-0.6 mm. Flowers 1.5-2 mm; perianth white, glabrous; tepals connate proximal 4, dimorphic, those of outer whorl obovate, 1-1.5 mm wide, those of inner whorl oblanceolate, 0.8-1 mm wide, connate proximally; stamens slightly exserted, 2-3 mm; filaments pilose proximally. Achenes light brown, 2-2.5 mm, glabrous except for papillate beak. Flowering May-Jul. Copper-rich quartzite gravel on ridges, pinyon woodlands; 1800 m; Calif. Eriogonum thornei is known from a single canyon area in the New York Mountains, San Bernardino County. Shultz elevated Thorne's wild buckwheat to species status when she proposed E. phoeniceum, here considered a variety of E. microthecum. Eriogonum thornei and E. ericifolium are weakly differentiated, with minimal morphologic differences, and yet they occur on different substrates and are well-removed biogeo­-graphically from each other. Thorne's wild buckwheat is a protected plant in California.

Click to Display
0 Total Images
NSF NEON | Open Data to Understand our Ecosystems The National Ecological Observatory Network is a major facility fully funded by the National Science Foundation. Any opinions, findings and conclusions or recommendations expressed in this material do not necessarily reflect the views of the National Science Foundation.