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leafstem tickseed

goldenwave tickseed

Habit Annuals, (5–)12–30(–50) cm. Perennials, 60–90+ cm.
Leaves

lobes linear, 3–30 × 0.5–3 mm.

mostly cauline on proximal 1/2–2/3 of plant heights;

petioles 0–35+ mm;

blades usually simple, rarely with 1(–3+) lateral lobes, simple blades or terminal lobes oblong-elliptic or ovate to elliptic, 45–95+ × 22–35+ mm.

Peduncles

5–25+ cm.

12–25(–40) cm.

Ray florets

(5–)8+;

laminae 12–20(–30) mm.

Ray laminae

yellow, 20–30+ mm.

Disc florets/Disc corollas

(12–)40–100+;

corollas 4–6.6 mm.

3.4–4.4 mm, apices yellow.

Phyllaries

(5–)8, lance-ovate to lanceolate, 6–10+ mm.

lance-ovate to lanceolate, 9–12 mm.

Calyculi

of 3–5 ovate-deltate bractlets (3–)4–6 mm.

of lanceolate to lance-linear bractlets 6–9 mm.

Cypselae

2.2–2.8 mm, wings ± spreading, ± chartaceous, entire.

Disc cypselae

oblanceolate to linear, 5–6 mm;

pappi 3–4(–5) mm.

Ray cypselae

± oblong, 4–6 mm.

Paleae

seldom basally adnate to and falling with disc cypselae.

Aerial

nodes proximal to first peduncle usually (5–)6–12+, distalmost 1–3 internodes 4–12 cm.

2n

= 24.

= 26

Coreopsis calliopsidea

Coreopsis intermedia

Phenology Flowering Feb–Jun. Flowering May–Jul.
Habitat Alkaline playas, flood plains, deep sands Sandy soils, openings in scrub-oak woodlands, roadsides and other disturbed sites
Elevation 100–1000 m (300–3300 ft) 60–300 m (200–1000 ft)
Distribution
from FNA
CA
[WildflowerSearch map]
from FNA
AR; LA; OK; TX
[BONAP county map]
Source FNA vol. 21, p. 188. FNA vol. 21, p. 195.
Parent taxa Asteraceae > tribe Heliantheae > subtribe Coreopsidinae > Coreopsis > sect. Pugiopappus Asteraceae > tribe Heliantheae > subtribe Coreopsidinae > Coreopsis > sect. Coreopsis
Sibling taxa
C. auriculata, C. basalis, C. bigelovii, C. californica, C. delphiniifolia, C. douglasii, C. gigantea, C. gladiata, C. grandiflora, C. hamiltonii, C. integrifolia, C. intermedia, C. lanceolata, C. latifolia, C. leavenworthii, C. major, C. maritima, C. nudata, C. nuecensis, C. palmata, C. pubescens, C. pulchra, C. rosea, C. stillmanii, C. tinctoria, C. tripteris, C. verticillata
C. auriculata, C. basalis, C. bigelovii, C. californica, C. calliopsidea, C. delphiniifolia, C. douglasii, C. gigantea, C. gladiata, C. grandiflora, C. hamiltonii, C. integrifolia, C. lanceolata, C. latifolia, C. leavenworthii, C. major, C. maritima, C. nudata, C. nuecensis, C. palmata, C. pubescens, C. pulchra, C. rosea, C. stillmanii, C. tinctoria, C. tripteris, C. verticillata
Synonyms Agarista calliopsidea
Name authority (de Candolle) A. Gray: in W. H. Emory, Rep. U.S. Mex. Bound. 2(1): 90. (1859) Sherff: Bot. Gaz. 88: 299. (1929)
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