GENUS CODE: COREO2 GENUS SCIENTIFIC:Coreopsis GENUS AUTHORITY: L. GENUS COMMON: Tickseed GENUS SUMMARY: [contributed by Alan S. Weakley and Bruce A. Sorrie] GENUS IDENTIFICATION: GENUS REFERENCES: Sorrie, LeBlond, & Weakley (2013)=X; Strother in FNA (2006c); Smith (1976)=Z; Sherff & Alexander (1955)=Y; Cronquist (1980)=SE. Key adapted from Y and Z.
FAMILY CODE: ASTERA FAMILY SCIENTIFIC:Asteraceae FAMILY AUTHORITY: Dumortier 1822 or COMPOSITAE Giseke 1792 FAMILY COMMON: Aster Family FAMILY SUMMARY: A family of about 1500-1700 genera and 20,000-25,000 species, shrubs, herbs, trees, and vines, cosmopolitan in distribution. FAMILY REFERENCE: Cronquist (1980)=SE throughout family treatment.
INTRO:Erect, rhizomatous perennial usually growing in clumps in dry sandy, rocky, or clayey woodlands and woodland borders. STEMS: Stems unbranched except in inflorescence,smooth with hairs at nodes. LEAVES: Leaves opposite,sessile, to 2 1/2 in. long, divided into multiple threadlike segments, presenting a feathery appearance. INFLORESCENCE: FLOWERS:Composite flowers (heads) in diffusely-branched, terminal cluster; heads yellow, 1-2 in. wide, consisting of 8 ray florets with minutely toothed tips encircling a dense center disk of tiny, tubular florets. 2 different series of bracts (inner and outer) surround the base of each head. FRUITS: COMMENTS: HEIGHT: 2-3 ft. DURATION:
Opposite, Basal LEAF COMPLEXITY:
Trifoliate LEAF RETENTION: FLORAL CHARACTERISTICS
BLOOM TIME: May-July
BLOOM COLOR: Yellow
FRUITING PERIOD: DISTRIBUTION
HABITAT TYPE: Dry forests, Woods margins
NATIVE RANGE: southeastern United States HORTICULTURAL
Plant Sale Text: The dainty yellow flowers of whorled tickseed bloom for a number of weeks beginning in early summer. Though the flowers and fine-textured foliage are delicate in appearance, this easy-to-grow southeastern native perennial is virtually free of garden pests. Whorled tickseed is a good choice for your perennial border or naturalized meadow. Each plant grows into a handsome clump. When in bloom, it is very attractive to butterflies.
USDA Symbol: COVE5
USDA Common Name: Whorled Tickseed
Native Status: L48 (N), CAN (I)
Distribution: USA (AL, AR, CT, DC, FL, GA, KY, MA, MD, MS, NC, NJ, NY, OH, SC, TN, VA, WV), CAN (ON, QC)
Growth Habit: Forb/herb
SCIENTIFIC NAME: Coreopsis verticillata
COMMON NAME: Threadleaf Coreopsis
SYNONYMY: [= C, F, FNA, G, K, RAB, S, SE, Va, W, WV, Y, Z]
HABITAT: Dry sandy, rocky, or clayey woodlands and woodland borders.
COMMENTS: Smith (1976) indicates that the species consists of two chromosome races, a diploid, ranging in the Piedmont and Mountains from c. SC and NC north to ne. WV, and s. MD, and an allotetraploid, limited to the Coastal Plain of ne. NC and se. VA. The finely-divided leaves are attractive and the plant is cultivated horticulturally; scattered occurrences outside the ranges indicated above are escapes from cultivation.
RANGE MAP: Coreopsis verticillata.png
Key to Map SymbolsABOUT FAMILY (Weakley Flora) Asteraceae Dumortier 1822 or COMPOSITAE Giseke 1792 (Aster Family) SUMMARY: A family of about 1500-1700 genera and 20,000-25,000 species, shrubs, herbs, trees, and vines, cosmopolitan in distribution. REFERENCE: Cronquist (1980)=SE throughout family treatment.ABOUT GENUS (Weakley Flora) Coreopsis L. (Tickseed) SUMMARY: [contributed by Alan S. Weakley and Bruce A. Sorrie] REFERENCE: Sorrie, LeBlond, & Weakley (2013)=X; Strother in FNA (2006c); Smith (1976)=Z; Sherff & Alexander (1955)=Y; Cronquist (1980)=SE. Key adapted from Y and Z.
SERNEC: Find Coreopsis verticillata in Southeast Regional Network of Experts and Collections (if available) UNC SERNEC: Find Coreopsis verticillata in
University of North Carolina Chapel Hill Herbarium - Southeast Regional Network of Experts and Collections (if available)