Coreopsis lanceolata L.

Lanceleaf coreopsis (Coreopsis lanceolata) is a herb 30-75 cm tall from the Asteraceae family, a plant endemic to North America distributed as far as being naturalized in Japan. Its strikingly yellow flowers are popular as cut flowers and yard ornamentals. In China and East Asia, lanceleaf coreopsis is traditionally used to reduce fever and treat diarrhea.

Coreopsis lanceolata is usually found growing in open woodland, grassland, savanna, and disturbed areas. Often found forming fairly large colonies along roadsides and in old fields. Prefers places with direct sunlight to partial shade conditions. Able to grow well in sandy soil, clay loam, and poorly drained soil, and can also thrive in poor (infertile) soil conditions. Its growth prefers soil with a slightly acidic to neutral pH (6.0-7.0), and has tolerance for heat, humidity, and drought (moderate level).

• Stem slender, branched at the base.
• Leaves basal, opposite, sometimes alternate, elliptic to linear shaped, green, margins entire. Some leaf blades deeply cut, nearly forming 3 leaflets.
• Flowers solitary, aster-like yellow with eight yellow ray florets (notched or toothed tip with three to five shallow indentations) surrounding numerous disk florets. The yellow center or disk florets protrude clearly. Calyx green.
• Seeds louse-like in shape.

Propagation is done using seed and clump division.

Phenolics, flavonoids (aurones, chalcones, flavones, flavanols, luteolin, quercetin), polyacetylene glycosides, lanceoletin, 3,2′-dihydroxy-4-3′-dimethoxychalcone-4′-glucoside, 4-methoxylanceoletin, lanceolin, leptosidin, (2R)-8-methoxybutin, bidenoside C, (3S,4S)-5E-trideca-1,5-dien-7,9,11-triyne-3,4-diol-4-O-β-glucopyranoside.

Reduces fever, used by women who wish to conceive a baby girl, treats diarrhea. Has anticancer, anti-inflammatory, antioxidant, antiallergic, and antileukemic activity.

• Prepare the lanceleaf coreopsis plant, wash clean with running water then drain.
• Dry under the sun or with an oven at 40°C until the moisture content reaches 10%.
• Grind using a blender until it becomes powder, then sift with a 60 mesh sieve.
• Store in a clean, airtight container.

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