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
    • Tonto 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
    • Collections in SEINet
    • Joining a Portal
Frangula
Family: Rhamnaceae
Frangula image
Max Licher
  • VPAP
  • Resources
CANOTIA 2(1)
PLANT: Shrubs or small trees, unarmed. STEMS: several to many, erect to ascending, smooth; branches mostly alternate; twigs canescent; bud scales absent. LEAVES: evergreen or deciduous, alternate, petiolate; blades elliptic to oblong or obovate, pinnately-veined, serrate to entire, pubescent to tomentose. INFLORESCENCE: axillary cymes of 2-35 flowers. FLOWERS: perfect, pedicellate; hypanthium hemispheric, 2 mm in diameter, loosely villous; sepals 5, yellow, triangular; petals 5, ca. 1 mm long; stamens 5; stigma 2-3-lobed. FRUITS: drupes, purplish-black when ripe, spherical, glabrous; stones 2-3, smooth. NOTES: 8 spp. in N. Amer. (2 in AZ). (Fragile; medieval name refers to the brittle twigs of alder buckthorn.) Frangula was formerly treated as a subgenus or section of the genus Rhamnus. REFERENCES: Christie, Kyle, Michael Currie, Laura Smith Davis, Mar-Elise Hill, Suzanne Neal, and Tina Ayers. 2006. Vascular Plants of Arizona: Rhamnaceae. CANOTIA 2(1): 23-46.
Show all taxa
Frangula alnus
Image of Frangula alnus
Frangula azorica
Images
not available
Frangula betulifolia
Image of Frangula betulifolia
Frangula breedlovei
Images
not available
Frangula californica
Image of Frangula californica
Frangula capreifolia
Image of Frangula capreifolia
Frangula caroliniana
Image of Frangula caroliniana
Frangula crenata
Image of Frangula crenata
Frangula discolor
Image of Frangula discolor
Frangula goudotiana
Image of Frangula goudotiana
Frangula hintonii
Images
not available
Frangula longistyla
Image of Frangula longistyla
Frangula macrocarpa
Image of Frangula macrocarpa
Frangula microphylla
Images
not available
Frangula mucronata
Image of Frangula mucronata
Frangula obovata
Image of Frangula obovata
Frangula polymorpha
Image of Frangula polymorpha
Frangula pringlei
Images
not available
Frangula purshiana
Image of Frangula purshiana
Frangula revoluta
Image of Frangula revoluta
Frangula rubra
Image of Frangula rubra
Frangula scopulorum
Image of Frangula scopulorum
Frangula sphaerosperma
Images
not available
Frangula tomentella
Images
not available
Frangula ursina
Images
not available
Frangula wendtii
Images
not available
Frangula x blumeri
Image of Frangula x blumeri
The National Science Foundation
Development supported by National Science Foundation Grants (DBI 9983132, BRC 0237418, DBI 0743827, DBI 0847966)
Powered by Symbiota