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Coreopsis integrifolia Poir.
Ciliate-leaf Tickseed
Federal Protection: No US federal protection
State Protection: Threatened
Global Rank: G2
State Rank: S1S2
Element Locations Tracked in Biotics: Yes
SWAP 2015 Species of Greatest Conservation Need (SGCN): Yes
SWAP 2025 Species of Greatest Conservation Need (SGCN): Yes
2025 SGCN Priority Tier: Highest Conservation Concern
Element Occurrences (EOs) in Georgia: 18
Habitat Summary for element in Georgia: Floodplain forests, streambanks
Perennial herb, sometimes forming large colonies by the spread of rhizomes. Stems 16 - 28 inches (40 - 70 cm) tall, hairy or smooth, with few branches, each branch topped by a flower head. Leaves are 1.2 - 2.75 inches (3 - 7 cm) long and 0.5 - 1 inch (1.5 - 3 cm) wide, opposite, oval with pointed tips and tapering bases, slightly hairy, with hairy margins and leaf stalks; leaf stalks are 0.4 - 1 inch (1 - 3 cm) long. Flower heads have two series of involucral bracts: outer bracts are short, narrow, and oblong; inner bracts are longer and broadly triangular. Ray flowers are 0.4 - 0.8 inch (1 - 2 cm) long, yellow, with 3 teeth at the tip; disk flowers are tiny and purple. Fruits are dry and seed-like, 0.2 inch (0.5 cm) long, flattened and seed-like, with scalloped wings and 2 bristles on the tip.
Coastal Plain Tickseed (Coreopsis gladiata) has similar flower heads, but its leaves are mostly basal and the few stem leaves are all alternate. Beggarticks (Bidens spp.) have two types of bracts beneath the heads, 8 ray flowers, and opposite leaves, but the ray flowers are not toothed at the tip, its disk flowers are usually yellow, and the leaves are usually lobed.
There are 3 rare species of Coreopsis in Georgia:
Ciliate-leaf Tickseed (Coreopsis integrifolia) occurs on streambanks and in floodplains of blackwater streams in the Coastal Plain. For more information see: https://georgiabiodiversity.org/portal/profile.html?group=plants&es_id=17909&fus_tab_id=1HsRRHkW2qqMS1MunY5KMrvThVR_5C8sAX2-pFapk&group=plant
Broad-leaved Tickseed (Coreopsis latifolia) occurs in mature deciduous forests with open understory in the mountains. For more information, see: https://georgiabiodiversity.org/portal/profile?group=plants&es_id=16819
Pink Tickseed (Coreopsis rosea) occurs in a wet meadow in Georgia's Blue Ridge and on a shoreline of an artificial lake in the upper Piedmont. For more information, see: https://www.georgiabiodiversity.org/portal/profile?group=plants&es_id=20663
Streambanks and floodplains of blackwater streams in the Coastal Plain.
Floodplain Tickseed is a perennial herb that reproduces vegetatively by sprouting from underground stems (rhizomes). It also reproduces sexually, attracting bees and other pollinators to its brightly colored flower heads. Floodplain Tickseed fruits are adapted to dispersal by mammals – the scalloped wings and bristled tips stick to animals’ fur, hence the common name of Tickseed.
Surveys are best conducted during flowering (August–November).
Coastal Plain of Georgia, Florida, and South Carolina.
Impoundment, siltation, and pollution of streams. Logging and other human disturbances in floodplains. Trampling by cattle along streambanks and in floodplains.
| Threat 1 | Threat 2 | Threat 3 | |
|---|---|---|---|
| General Threat | Transportation & Service Corridors | Natural system modifications | Invasive & other problematic species, genes & diseases |
| Specific Threat | None | None | None |
Coreopsis integrifolia is ranked S1S2 by the Georgia Department of Natural Resources, indicating that is imperiled in the state. It is listed as Threatened by the State of Georgia. Thirteen populations have been observed in Georgia, but only 10 of these have been confirmed in since 2000 and only three occur on conservation lands.
Avoid damming or polluting streams; avoid clearcutting in floodplains. Avoid use of herbicides near streams. Exclude cattle from bottomlands and streambanks.
Chafin, L.G. 2007. Field guide to the rare plants of Georgia. State Botanical Garden of Georgia and University of Georgia Press, Athens.
Chafin, L.G. 2000. Field guide to the rare plants of Florida. Florida Natural Areas Inventory, Tallahassee.
Cronquist, A. 1980. Vascular flora of the southeastern United States, Vol. 1, Asteraceae. University of North Carolina Press, Chapel Hill.
GADNR. 2019. Element occurrence records for Coreopsis integrifolia. Georgia Department of Natural Resources, Wildlife Resources Division, Social Circle, Georgia.
Godfrey, R.K. and J.W. Wooten. 1981. Aquatic and wetland plants of southeastern United States, Vol. 2, dicotyledons. University of Georgia Press, Athens.
NatureServe. 2019. Coreopsis integrifolia comprehensive report. NatureServe Explorer. Arlington, Virginia. http://explorer.natureserve.org/servlet/NatureServe?searchName= Coreopsis%20integrifolia
Smith, E.B. 1976. A biosystematic survey of Coreopsis in eastern United States and Canada. Sida 6(3): 123-215.
Strother, J.L. 2006. Coreopsis integrifolia species account. Flora of North America, vol. 21. Oxford University Press, New York. http://beta.floranorthamerica.org/Coreopsis_integrifolia
Weakley, A.S. 2015. Flora of the southern and mid-Atlantic States. University of North Carolina Herbarium, University of North Carolina, Chapel Hill. http://www.herbarium.unc.edu/flora.htm
Linda G. Chafin
L. Chafin, Nov. 2007: original account
K. Owers, Jan. 2010: updated status and ranks, added pictures
L. Chafin, Jan 2020: updated original account.
