Helenium virginicum (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Helenium virginicum" in English language version.

refsWebsite

Global rank English rank

2web.archive.org

1^st place

1^st place

26^th place

20^th place

1natureserve.org

5,367^th place

2,998^th place

9,082^nd place

5,078^th place

2,434^th place

1,524^th place

1innovations-report.com

low place

low place

732^nd place

800^th place

1centerforplantconservation.org

low place

low place

bonap.net

Biota of North America Program 2014 county distribution map

centerforplantconservation.org

Helenium virginicum. Archived 2010-12-15 at the Wayback Machine Center for Plant Conservation.

efloras.org

Helenium virginicum. Flora of North America.

fws.gov

ecos.fws.gov

USFWS. Determination of threatened status for Virginia Sneezweed (Helenium virginicum), a plant from the Shenandoah Valley of Virginia. Federal Register November 3, 1998.

innovations-report.com

backend.innovations-report.com

Biologists to determine if rare plant deserves protection. Archived 2012-03-22 at the Wayback Machine Innovations Report September 23, 2009.

jstor.org

Messmore, N. A. and J. S. Knox. (1997). The breeding system of the narrow endemic, Helenium virginicum (Asteraceae). Journal of the Torrey Botanical Society 124:4 318-21.
Rimer, R. L. and J. W. Summers. (2006). Range and ecology of Helenium virginicum in the Missouri Ozarks. Southeastern Naturalist 5:3 515.

natureserve.org

Helenium virginicum. The Nature Conservancy.

web.archive.org

Biologists to determine if rare plant deserves protection. Archived 2012-03-22 at the Wayback Machine Innovations Report September 23, 2009.
Helenium virginicum. Archived 2010-12-15 at the Wayback Machine Center for Plant Conservation.