Vascular Plants of North Carolina
Account for Yellow Sneezeweed - Helenium amarum   (Rafinesque) H. Rock
Members of Asteraceae:
Members of Helenium with account distribution info or public map:
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Section 6 » Order Asterales » Family Asteraceae
Author(Rafinesque) H. Rock
DistributionThroughout the Coastal Plain and most of the Piedmont; scarce in the Mountains.

Native of Texas, now found as far as FL, MA, WI. Until recently, often considered to be native to the Eastern states, but Weakley (2018) indicates that it is not native east of TX.
AbundanceCommon to often locally abundant, except rare in the Mountains.
HabitatRoadsides, fields, pastures, barnyards, disturbed ground, waste places, campus weed. Many a vacant lot or cow pasture is yellow with the flowering heads of this species.
PhenologyFlowering and fruiting May-December.
IdentificationYellow Sneezeweed is a very familiar weed of roadsides and pastures, among other disturbed places. It is a much-branched and compact plant, mostly a foot or less tall (due to mowing), but reportedly may attain 2-3 feet tall. The basal leaves are absent at flowering; the stem leaves are linear, glandular-punctate, and fragrant. The heads have yellow rays and darker orange-yellow discs.
Taxonomic CommentsOur plants are the var. amarum.

Other Common Name(s)Bitter Sneezeweed, Bitterweed
State RankSE
Global RankG5
State Status
US Status
USACE-agcpFACU link
USACE-empFACU link
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B.A. SorrieDry-xeric roadside, Sept 2009. MoorePhoto_non_natural

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