• 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
    • Mosquito 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 apiculatum S. Wats.  

No occurrences found

Family: Polygonaceae
San Jacinto buckwheat
Images
not available
  • FNA
  • Resources
James L. Reveal in Flora of North America (vol. 5)
Herbs, erect to spreading, annual, 2-9 dm, glabrous and sparsely glandular especially (or at least) near nodes, grayish to greenish. Stems: caudex absent; aerial flowering stems erect, solid, not fistulose, 0.5-1.5 dm, glabrous, glandular distally or sparsely so throughout. Leaves basal; petiole 1-4 cm, pilose, slightly winged; blade oblanceolate to obovate, (0.5-)1-4 × 0.5-1.5 cm, sparsely pilose, glandular and greenish on both surfaces, margins entire. Inflorescences cymose, open, 30-80 × 10-50 cm; branches not fistulose, glabrous, sparsely glandular at nodes; bracts 3, scalelike, 1-2 × 1-2 mm. Peduncles deflexed, straight, filiform, (0.1-)0.2-0.35 cm, sparsely glandular. Involucres turbinate, 1.2-1.5 × 1-1.3 mm, glabrous; teeth 4, erect or nearly so, 0.3-0.7 mm. Flowers 1.5-2.5 mm; perianth white with reddish brown midribs, becoming reddish in fruit, rarely yellow, puberulent; tepals monomorphic, oblong-obovate, sometimes with apiculate tip 1-2 mm; stamens exserted, 1.5-2 mm; filaments glabrous. Achenes light brown to brown, lenticular, 1.3-1.7(-2.2) mm, glabrous. 2n = 40. Flowering May-Nov. Sandy granitic flats and slopes, chaparral communities, oak and conifer woodlands; (200-)700-2700 m; Calif. Eriogonum apiculatum is restricted to the San Jacinto, Santa Rosa, Palomar, and Cuyamaca mountains of Riverside and San Diego counties. Two collections are discounted as to location: Hall 1025 (MIN), purportedly from the San Bernardino Mountains, certainly was labeled erroneously by the Parish brothers, who redistributed the sheet; and Jaeger s.n. (19 May 1940, DS, IDS, UTC, WTU) from 'Falcon Flat' in the Little San Bernardino Mountains appears to be another of the small but significant list of Jaeger specimens with highly dubious label data. No such place is known in Joshua Tree National Park. The phase of the species named var. subvirgatum, with nearly sessile involucres, occurs intermixed with the typical expression.

A yellow-flowered population was found at the eastern end of the San Bernardino Mountains, San Bernardino County. Recent attempts to relocate those plants have been unsuccessful, and they remain undescribed.

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.