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
Erigeron tweedyi
Canby
Family:
Asteraceae
Tweedy's Fleabane
FNA
Resources
Guy L. Nesom in Flora of North America (vol. 20)
Perennials,
4-20 cm; taprooted, caudices multicipital crowns or branches relatively short and thick.
Stems
erect to ascending or decumbent-prostrate, densely strigose (hairs relatively thin), eglandular.
Leaves
basal (persistent) and cauline; basal (silvery) blades spatulate, broadly elliptic, 50-250 × 5-13 mm, cauline abruptly reduced distally, margins entire, faces densely strigoso-sericeous (hairs gray-white), eglandular.
Heads
1-4.
Involucres
4-6 × 9-14 mm.
Phyllaries
in 3-4 series, finely hirsuto-strigose, sparsely minutely glandular.
Ray florets
20-50; corollas blue to purple, sometimes white, 5-9 mm, laminae not coiling or reflexing.
Disc corollas
3.1-4.3 mm.
Cypselae
2-2.5 mm, 2-nerved, faces strigoso-sericeous;
pappi:
outer of setae, inner of 20-30 bristles. Flowering Jun-Aug. Clay hills, rocky slopes, limestone taluses, shale outcrops, sagebrush-grasslands; (1300-)1600-3000 m; Idaho, Mont., Wyo.
Open Interactive Map
Click to Display
59 Total Images
Development supported by National Science Foundation Grants (
DBI 9983132
,
BRC 0237418
,
DBI 0743827
,
DBI 0847966
)
Powered by
Symbiota