From Wikipedia, the free encyclopedia
Genus of plants
This article is about the plant genus. For the extinct ancient plant, see
Silphium .
Silphium is a genus of
North American plants in the tribe
Heliantheae within the family
Asteraceae .
[1]
[2]
Members of the genus, commonly known as rosinweeds , are
herbaceous
perennial plants growing to 0.2 m (8 in) to more than 2.5 m (8 ft 2 in) tall, with yellow (rarely white) flowerheads that resemble
sunflowers . In the rosinweeds, the outer
florets in the head are fertile and the inner florets are sterile;
[3] in the sunflowers, the reverse is true.
[4]
The name of the genus comes from the
Ancient Greek word for a
North African plant whose identity has been lost, though it is known its gum or juice was prized by the ancients as a medicine and a condiment.
[3]
Species
Species in the genus include:
[5]
[3]
[6]
[7]
[8]
[9]
Formerly included
Numerous species are now regarded as members of the genera
Berlandiera and
Verbesina .
[5]
See also
References
^
Linnaeus, Carl (1753).
Species Plantarum (in Latin). Vol. 2. pp. 919–920.
^
"Silphium L." .
Tropicos .
Missouri Botanical Garden .
^
a
b
c Clevinger, Jennifer A.
"Silphium " . In Flora of North America Editorial Committee (ed.).
Flora of North America North of Mexico (FNA) . New York and Oxford: Oxford University Press. Retrieved 2008-06-24 – via eFloras.org,
Missouri Botanical Garden , St. Louis, MO &
Harvard University Herbaria , Cambridge, MA.
^ Schilling, Edward E. (2006).
"Helianthus " . In Flora of North America Editorial Committee (ed.).
Flora of North America North of Mexico (FNA) . Vol. 21. New York and Oxford: Oxford University Press – via eFloras.org,
Missouri Botanical Garden , St. Louis, MO &
Harvard University Herbaria , Cambridge, MA.
^
a
b
Flann, C (ed) 2009+ Global Compositae Checklist
Archived 2014-11-06 at
archive.today
^
International Organization for Plant Information (IOPI) .
"Plant Name Search" . International Plant Names Index . Retrieved 2008-06-24 .
^
USDA, NRCS (n.d.).
"Silphium " . The PLANTS Database (plants.usda.gov) . Greensboro, North Carolina: National Plant Data Team. Retrieved 2008-06-24 .
^
"Silphium " .
Germplasm Resources Information Network .
Agricultural Research Service ,
United States Department of Agriculture . Retrieved 2011-02-16 .
^
"Silphium " . County-level distribution maps from the North American Plant Atlas (NAPA) . Biota of North America Program (BONAP). 2014.
External links
Media related to
Silphium (
category ) at Wikimedia Commons
Data related to
Silphium at Wikispecies
USDA, NRCS (n.d.).
"Silphium " . The PLANTS Database (plants.usda.gov) . Greensboro, North Carolina: National Plant Data Team.