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
Grindelia havardii Steyermark  
Family: Asteraceae
Havard's Gumweed
Grindelia havardii image
  • FNA
  • Resources
John L. Strother, Mark A. Wetter in Flora of North America (vol. 20)
Perennials (perhaps flowering first or second year), 30-50(-150) cm. Stems erect, stramineous to pinkish, usually villosulous to hirtellous and/or stipitate-glandular, sometimes glabrate. Cauline leaf blades mostly ovate to oblong, (7-)15-30(-55) mm, lengths 2-4 times widths, bases ± clasping, margins crenate (teeth mostly 3-5 per cm, blunt, resin-tipped), apices obtuse to acute, faces usually hirtellous and little, if at all, gland-dotted, sometimes glabrate (then gland-dotted). Heads borne singly or in open to crowded, corymbiform arrays. Involucres broadly urceolate to globose, 8-13 × 12-22 mm (often subtended by leaflike bracts). Phyllaries in 5-6 series, reflexed to spreading, linear to lanceolate, apices subulate to terete, ± recurved to straight (terminal setae incurved), moderately to strongly resinous. Ray florets 18-25; laminae 8-11 mm. Cypselae stramineous to light brown, (2-)3-3.5 mm, apices smooth to minutely coronate, faces smooth or striate (angles ± ribbed); pappi of 2 ± straight, usually smooth (apices usually dilated), setiform awns 4-7 mm, ± equaling disc corollas. 2n = 12. Flowering Jun-Sep(-Oct). Open sites, rocky slopes of limestone, dry gravelly washes, alluvium; 1100-2000 m; N.Mex., Tex.
Grindelia havardii
Open Interactive Map
Grindelia havardii image
Grindelia havardii image
Grindelia havardii image
Grindelia havardii image
Grindelia havardii image
Grindelia havardii image
Grindelia havardii image
Grindelia havardii image
Grindelia havardii image
Grindelia havardii image
Grindelia havardii image
Grindelia havardii image
Grindelia havardii image
Grindelia havardii image
Grindelia havardii image
Grindelia havardii image
Grindelia havardii image
Grindelia havardii image
Grindelia havardii image
Grindelia havardii image
Grindelia havardii image
Grindelia havardii image
Grindelia havardii image
Grindelia havardii image
Grindelia havardii image
Grindelia havardii image
Grindelia havardii image
Grindelia havardii image
Grindelia havardii image
Grindelia havardii image
Grindelia havardii image
Grindelia havardii image
Grindelia havardii image
Grindelia havardii image
Grindelia havardii image
Grindelia havardii image
Grindelia havardii image
Grindelia havardii image
Grindelia havardii image
Click to Display
40 Total Images
The National Science Foundation
Development supported by National Science Foundation Grants (DBI 9983132, BRC 0237418, DBI 0743827, DBI 0847966)
Powered by Symbiota