Log In New Account Sitemap
  • Home
  • Search
    • Search Collections
    • Map Search
    • Dynamic Species List
    • Exsiccati
    • Taxonomic Explorer
  • Images
    • Image Browser
    • Search Images
  • Species Checklists
    • North America
  • Crowdsource
  • Contacts
    • Partners
  • Acknowledgements
Pentagramma triangularis subsp. viscosa (Nuttall ex D. C. Eat.) Yatskievych, Windham & Wollenweber  
Family: Pteridaceae
[Ceropteris viscosa (D. C. Eat.) Underw., moreGymnogramma triangularis var. viscosa D.C. Eaton]
Pentagramma triangularis subsp. viscosa image
  • FNA
  • Resources
George Yatskievych
Michael D. Windham in Flora of North America (vol. 2)
Petiole sometimes viscid-glandular. Blades thick and leathery, abaxially densely white-farinose and viscid-glandular, adaxially viscid-glandular. Distal pinnae mostly entire. Proximal basiscopic lobes of basal pinnae entire to undulate or crenate. 2 n = 60. Chaparral, pine and oak woodlands; 50--500 m; largely coastal; Calif.; Mexico in Baja California. Pentagramma triangularis subsp. viscosa was said to introgress with P . triangularis subsp. triangularis by K. S. Alt and V. Grant (1960), who noted both diploid and tetraploid plants of intermediate morphology at some sites where these two occur together.

Pentagramma triangularis subsp. viscosa
Open Interactive Map
Pentagramma triangularis subsp. viscosa image
Pentagramma triangularis subsp. viscosa image
Pentagramma triangularis subsp. viscosa image
Pentagramma triangularis subsp. viscosa image
Pentagramma triangularis subsp. viscosa image
Pentagramma triangularis subsp. viscosa image
Pentagramma triangularis subsp. viscosa image
Pentagramma triangularis subsp. viscosa image
Pentagramma triangularis subsp. viscosa image
Pentagramma triangularis subsp. viscosa image
Pentagramma triangularis subsp. viscosa image
Pentagramma triangularis subsp. viscosa image
Pentagramma triangularis subsp. viscosa image
Pentagramma triangularis subsp. viscosa image
Pentagramma triangularis subsp. viscosa image
Pentagramma triangularis subsp. viscosa image
Pentagramma triangularis subsp. viscosa image
Pentagramma triangularis subsp. viscosa image
Pentagramma triangularis subsp. viscosa image
Pentagramma triangularis subsp. viscosa image
Pentagramma triangularis subsp. viscosa image
Pentagramma triangularis subsp. viscosa image
Pentagramma triangularis subsp. viscosa image
Pentagramma triangularis subsp. viscosa image
Pentagramma triangularis subsp. viscosa image
Pentagramma triangularis subsp. viscosa image
Pentagramma triangularis subsp. viscosa image
Click to Display
28 Total Images

The PCC, and this data portal, were made possible by funding from the National Science Foundation’s Advancing Digitization of Biological Collections (ADBC) program, grant numbers 1802504, 1802352, 1802134, 1802033, 1802270, 1802255, 1802239, 1802446, 1802305.
The pteridoportal taxonomic thesaurus is based on the Checklist of Ferns and Lycophytes of the World, generously provided by Michael Hassler.