Vascular Plants of North Carolina
Account for Savanna Tickseed - Coreopsis linifolia   Nuttall
Members of Asteraceae:
Members of Coreopsis with account distribution info or public map:
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Section 6 » Order Asterales » Family Asteraceae
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AuthorNuttall
DistributionCoastal Plain and Sandhills; rare on the Outer Banks (Roanoke Island).

Coastal Plain, southeastern VA to northern FL and eastern TX.
AbundanceCommon in the Longleaf Pine (Pinus palustris) belt in the eastern Sandhills (Fort Bragg), the lower Coastal Plain, and in southern coastal counties, but uncommon to infrequent elsewhere.
HabitatMoist to wet Longleaf Pine--Wiregrass savannas and flatwoods, pitcher-plant seepages, pocosin ecotones, blackwater streamhead ecotones.
PhenologyFlowering and fruiting July-October.
IdentificationThis species is notable for its narrow leaves, especially the basal ones and those of non-flowering, young plants, which are thick-textured, about 10 mm wide (or a bit wider) and several inches long, tapering to long stalks. Up the stem, leaves rapidly lose the stalks and blades eventually become short and skinny. The inflorescence consists of few to several branches, terminated by single heads; the rays yellow and toothed, the disks brown. Basal and lower leaves are always narrower than those of C. gladiata, and it begins flowering much earlier.
Taxonomic CommentsUntil Smith (1976) straightened things out, authors treated this species as part of C. gladiata. Even after that monograph, some authors continued to lump it (and other species) into the latter (e.g., FNA in 2006) -- most unfortunate. See Sorrie et al. (2013) for discussion of this group of tickseeds. There are 2 "chromosome races" within Savanna Tickseed, one Atlantic and one Gulf; their taxonomy is unsettled.

For excellent drawings of all species (except those recently described) and range maps (although now out-of-date), see the monograph by Smith (1976).
Other Common Name(s)Texas Tickseed
State RankS4
Global RankG4Q
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B.A. SorrieSandhills Game Land, wet seepy roadside, Sept 2018. RichmondPhoto_natural
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