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Loughmiller, Campbell and Lynn
Argemone mexicana L.
Mexican pricklypoppy, Mexican prickly poppy, Yellow pricklypoppy
Synonym(s): Argemone leiocarpa
USDA Symbol: ARME4
The yellow prickly poppy, 8Ė18 inches tall, has a smooth or slightly prickly stem. The deeply lobed leaves are a whitish green, and the upper ones clasp the stem between their two lower lobes. The upper surface of the leaf is smooth. Flowers are yellow, about 2 1/2 inches across. The sap from this plant is bright yellow.
This thistle-leaved species occurs from Virginia and Tennessee to Florida and Texas and has escaped from cultivation northward.
Plant CharacteristicsDuration: Annual Habit: Herb Root Type: Tap Leaf Arrangement: Alternate Leaf Complexity: Simple Leaf Margin: Dentate Breeding System:
Flowers Bisexual Size Notes:
Fruit: Size Class:
Bloom InformationBloom Color: Yellow
Bloom Time: Mar , Apr , May , Jun
, VT Native Distribution:
Virginia and Tennessee south to Florida and west to Texas; spreading northward to New England, Great Lakes, and Midwest. Native Habitat:
Growing ConditionsWater Use: Low
Light Requirement: Sun
Soil Moisture: Dry
Soil pH: Acidic (pH<6.8)
Soil Description: Sandy
BenefitWarning: Seeds and other plant parts can be toxic if ingested. Sensitivity to a toxin varies with a personís age, weight, physical condition, and individual susceptibility. Children are most vulnerable because of their curiosity and small size. Toxicity can vary in a plant according to season, the plantís different parts, and its stage of growth; and plants can absorb toxic substances, such as herbicides, pesticides, and pollutants from the water, air, and soil.
Conspicuous Flowers: yes
Record Last Modified: 2012-08-29
Research By: TWC Staff