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Coreopsis rosea Nutt.

Pink tickseed (en)

Species

Angiosperms > Asterales > Asteraceae > Coreopsis

Characteristics

Glabrous, rhizomatous perennial 2–6 dm; lvs 2–5 cm, linear, ± entire or occasionally some irregularly lobed; heads rather short-pedunculate, the yellow disk 5–10 mm wide; outer invol bracts short, eventually spreading; rays pink (white), ca 1 cm; receptacular bracts linear, acute to obtuse; disk-cors 4-toothed; style appendages short and blunt; achenes narrow, wingless, ca 2 mm; pappus a minute cup, or nearly obsolete; 2n=26. Wet, often sandy or acid soil, or in shallow water; N.S. and Mass. to Ga., mainly on the coastal plain. Aug., Sept.
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Perennials, 10–30(–60) cm. Internodes (± mid stem) 1–4(–5+) cm. Leaves mostly cauline; opposite; petioles 0–1 mm, ciliate or not; blades lance-linear to linear or filiform, 20–45(–60) × 1–2(–3+) mm, rarely with 1–2 lateral lobes. Peduncles 2–4(–6+) cm. Calyculi of oblong to linear bractlets 1.5–2+ mm. Phyllaries deltate-ovate, 4.5–5.5 mm. Ray laminae pinkish to white, 9–15+ mm. Disc florets 40–60+; corollas ochroleucous to yellow, 2.5–3 mm. Cypselae narrowly oblong, 1.3–1.8 mm, not winged; pappi 0. 2n = 26.
A herb.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention -
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) 1.0
Mature height (meter) 0.6
Root system creeping-root fibrous-root rhizome
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color -
Fruiting months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Nitrogen fixer -
Photosynthetic pathway -

Environment

It is a temperate plant. It suits hardiness zones 4-8.
Light 4-8
Soil humidity 1-7
Soil texture 3-5
Soil acidity -
Soil nutriment -
Hardiness (USDA) 4-8

Usage

Uses ornamental
Edible -
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Mode -
Germination duration (days) 20 - 25
Germination temperacture (C°) 9 - 13
Germination luminosity light
Germination treatment -
Minimum temperature (C°) -35
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Leaf

Coreopsis rosea leaf picture by William Coville (cc-by-sa)

Flower

Coreopsis rosea flower picture by William Coville (cc-by-sa)

Distribution

Coreopsis rosea world distribution map, present in Canada, Cuba, and United States of America

Conservation status

Coreopsis rosea threat status: Near Threatened

Identifiers

LSID urn:lsid:ipni.org:names:65909-2
WFO ID wfo-0000015938
COL ID YDV9
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Coreopsis rosea Calliopsis rosea Coreopsis rosea f. rosea
WorldFloraDB 2024