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
  • 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
    • Contributing Collections
    • How to contribute specimens
Packera indecora (Greene) A. Löve & D. Löve  
Family: Asteraceae
Rayless Mountain Groundsel
[Senecio burkei Greenm., moreSenecio idahoensis]
Packera indecora image
Steve Buckley
  • FNA
  • Resources
Debra K. Trock in Flora of North America (vol. 20)
Perennials, 10-100 cm; taprooted (caudices erect to suberect, relatively stout, branched). Stems 1 or 2-3, loosely clustered, glabrous or glabrate. Basal leaves petiolate; blades elliptic-ovate, oblong, or subreniform, 20-50 × 10-40+ mm, bases subcordate, truncate, or cuneate, margins usually crenate-dentate to coarsely dentate-lacerate, seldom subentire. Cauline leaves gradually reduced (petiolate, resembling basals, sublyrate or dissected; distal sessile, subentire to pinnatifid). Heads 8-20+ in subumbelliform arrays. Peduncles ebracteate (or bractlets inconspicuous), glabrous or glabrate. Calyculi conspicuous (bractlets green, tips sometimes reddish). Phyllaries 13 or 21, green (tips sometimes reddish), 7-9 mm, glabrous. Ray florets 0 or 8-10; corolla laminae (deep yellow) 3-5 mm. Disc florets 60-70+; corolla tubes 2-3 mm, limbs 2.5-3.5 mm. Cypselae 1-2 mm, glabrous; pappi 3-4 mm. 2n = 46, 126, 176, 184. Flowering mid Jun-late Aug. Damp meadows, along streams, wet woodlands; 0-2300 m; Alta., B.C., Man., Nfld. and Labr. (Labr.), N.W.T., Nunavut, Ont., Que., Sask., Yukon; Alaska, Calif., Idaho, Mich., Minn., Mont., Wash., Wyo. Packera indecora is found at relatively low elevations in eastern Canada and at middle to subalpine elevations in the western cordillera. It closely resembles P. pauciflora and it is often difficult to identify specimens in the herbarium. Biosystematic studies (J. F. Bain and J. Whitton 1994) have indicated that although they are morphologically similar, P. indecora and P. pauciflora have distinctly different physiologies and should be maintained as distinct taxa.

Packera indecora
Open Interactive Map
Packera indecora image
Steve Buckley
Packera indecora image
Packera indecora image
Packera indecora image
Packera indecora image
Packera indecora image
Packera indecora image
Packera indecora image
Packera indecora image
Packera indecora image
Packera indecora image
Packera indecora image
Packera indecora image
Packera indecora image
Packera indecora image
Packera indecora image
Packera indecora image
Packera indecora image
Packera indecora image
Packera indecora image
Packera indecora image
Packera indecora image
Packera indecora image
Packera indecora image
Packera indecora image
Packera indecora image
Packera indecora image
Packera indecora image
Packera indecora image
Packera indecora image
Packera indecora image
Packera indecora image
Packera indecora image
Packera indecora image
Packera indecora image
Packera indecora image
Packera indecora image
Packera indecora image
Packera indecora image
Packera indecora image
Packera indecora image
Packera indecora image
Packera indecora image
Packera indecora image
Packera indecora image
Packera indecora image
Packera indecora image
Packera indecora image
Packera indecora image
Packera indecora image
Packera indecora image
Packera indecora image
Packera indecora image
Packera indecora image
Packera indecora image
Packera indecora image
Packera indecora image
Packera indecora image
Packera indecora image
Packera indecora image
Packera indecora image
Packera indecora image
Packera indecora image
Click to Display
64 Total Images
The National Science Foundation
Development supported by National Science Foundation Grants (DBI 9983132, BRC 0237418, DBI 0743827, DBI 0847966)
Powered by Symbiota