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Anacis verticillata (Linnaeus) Z.H. Feng, Z.J. Huang, & Su Liu. Common name: Threadleaf Coreopsis. Phenology: May-Jul. Habitat: Dry sandy, rocky, or clayey woodlands and woodland borders; also a waif or persistent from horticultural use. Distribution: 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.

Origin/Endemic status: Endemic

Other Comments: The finely-divided leaves are attractive and the plant is cultivated horticulturally; scattered occurrences outside the ranges indicated above are escapes from cultivation.

Synonymy : = Feng et al (2024); = Coreopsis verticillata L. — C, F, FNA21, G, K4, NE, RAB, S, SE1, Va, W, WV, Sherff & Alexander (1955), Smith (1976); = Gyrophyllum verticillatum (Linnaeus) Mesfin & D.J. Crawford — Tadesse & Crawford (2023), genus name illegitimate; = n/a — Tat

Links to other floras: = Coreopsis verticillata - FNA21

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Heliophily : 8

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image of plant© Gary P. Fleming | Original Image ⭷
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image of plantno rights reserved, uploaded by Becky Dill source CC0 | Original Image ⭷
image of plant© Bruce A. Sorrie | Original Image ⭷
image of plant© Gary P. Fleming | Original Image ⭷
image of plant© Grant Morrow Parkins | Original Image ⭷
image of plant© Grant Morrow Parkins | Original Image ⭷
image of plant© Bruce A. Sorrie | Original Image ⭷
image of plant© Grant Morrow Parkins | Original Image ⭷

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Horticultural Information

NCBG trait

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.

Inforescence:

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.

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.

bloom table text:

description: 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:

cultural notes:

germination code:

native range: southeastern United States