• 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
    • Data Usage Policy
    • Dataset Publishing
  • Additional Information
    • Tutorials and Help
    • Biorepository Staff
    • About NEON
    • NEON Data Portal
    • ASU Biocollections
    • About Symbiota
  • Getting Started
Login New Account Sitemap
Oxytheca watsonii Torrey & A. Gray  

No occurrences found

Family: Polygonaceae
Watson's oxytheca
Images
not available
  • FNA
  • Resources
James L. Reveal in Flora of North America (vol. 5)
Plants erect to spreading, 0.5-2.5 × 0.4-4 dm. Stems glandular throughout. Leaf blades spatulate or obovate to oblanceolate, 0.7-4 × (0.1-)0.5-1.2 cm, strigose adaxially, less so abaxially, sparsely glandular on both surfaces. Inflorescences open to densely branched, 0.5-2 dm; bracts 1-5 × 0.5-3 mm, 3(-5) at first node and linear to ovate, otherwise distinct or basally connate and linear to triangular, ciliate and glandular; awns 1-3 mm. Peduncles deflexed, stout, 0.2-0.5 cm at proximal nodes, sometimes absent. Involucres 1.5-2 mm, typically glabrous, rarely with few scattered hairs abaxially; teeth 4; awns reddish, 2.5-3 mm. Flowers 2-4(-7); perianth white to pink, 1-1.5 mm, strigose and sparsely glandular abaxially; tepals dimorphic, entire, those of outer whorl oval to ovate and strigose abaxially, those of inner elliptic to oval or ovate and glabrous or sometimes pubescent adaxially at base; filaments 1-1.5 mm, glabrous; anthers cream to red, oval, 0.2 mm. Achenes dark brown to maroon, 1-1.5 mm. 2n = 40. Flowering Jun-Oct. Sandy flats and slopes, saltbush communities; 1200-2000 m; Calif., Nev. Oxytheca watsonii is an uncommon species known only from scattered locations. The name was misapplied in pre-1980 California floras to Acanthoscyphus parishii var. goodmaniana.

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.