Kansas Wildflowers and Grasses - Lance-leaf coreopsis

LANCE-LEAF COREOPSIS

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Coreopsis lanceolata L.

Wildcat Glades, Newton County, Missouri

Perennial

Height: 4-24 inches

Family: Asteraceae â€“ Sunflower Family

Flowering Period: April, May, June, July

Stems:

Erect, simple or branched above, glabrate to villous.

Leaves:

Basal and cauline, mostly on lower 1/3 of stem, cauline opposite; petiole .4 to 3 inches; blade narrowly ovate to lanceolate, oblanceolate, or linear, 2 to 4.8 inches long, .3 to .8 inch wide, entire or with 1-2 basal lobes, lobes lanceolate to linear.

Inflorescences:

Heads, solitary; involucres campanulate; peduncles 3.2 to 14 inches. Calyculate bractlets 6-9, ovate to narrowly lanceolate, .16 to .45 inch. Phyllaries in 2 series: outer broadly lanceolate to ovate, .3 to .4 inch; inner ovate to deltate, .3 to .47 inch.

Flowers:

Ray florets usually 8: corolla yellow, ligule .6 to 1.2 inch, apex with 3-5 prominent teeth. Disk florets many: corolla yellow, .24 to .3 inch, lobes 5.

Fruits:

Achenes, black, elliptic or oblong, .1 to .16 inch; pappus of 2 short teeth. Seed 1.

Habitat:

Sandy tallgrass prairies, roadsides, disturbed areas

Distribution:

East half of Kansas

Origin:

Native

Comments:

Coreopsis, bug and appearance, alluding to the achenes of some species resembling ticks and lanceolata, spear-shaped, alluding to the leaves.

Lance-leaf coreopsis inflorescence