Thornapple Argemone mexicana
Other Common Name(s):
- Phonetic Spelling
- ar-GEH-mon-ee meks-sih-KAY-nah
- This plant has high severity poison characteristics.
- See below
- Description
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Argemone mexicana is an annual herb with bright yellow sap.
Found in: Weedy in disturbed areas in waste places, roadsides, old fields, pastures, barnyards, gardens
- See this plant in the following landscape:
- Cultivars / Varieties:
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- Tags:
- Cultivars / Varieties:
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- Tags:
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Attributes:
- Genus:
- Argemone
- Species:
- mexicana
- Family:
- Papaveraceae
- Country Or Region Of Origin:
- Central Mexico to Honduras
- Distribution:
- Southern Coastal Plain, garden ornamental
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Whole Plant Traits:
- Plant Type:
- Poisonous
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Flowers:
- Flower Color:
- Cream/Tan
- Gold/Yellow
- White
- Flower Petals:
- 4-5 petals/rays
- 6 petals/rays
- Flower Description:
- Flowers have 4-6, bright yellow petals (cream-yellow or white forms) and many stamens.
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Leaves:
- Leaf Type:
- Simple
- Leaf Arrangement:
- Alternate
- Leaf Margin:
- Lobed
- Hairs Present:
- No
- Leaf Description:
- Leaves are alternate, simple, with spine-tipped lobes and whitish wax that rubs off.
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Stem:
- Stem Is Aromatic:
- No
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Landscape:
- Problems:
- Poisonous to Humans
- Weedy
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Poisonous to Humans:
- Poison Severity:
- High
- Poison Symptoms:
- TOXIC ONLY IF LARGE QUANTITIES EATEN. Poisonous through ingestion. (Poisonous parts: All parts, seeds). Symptoms may include: Vomiting, diarrhea, difficulty of seeing, fainting, and coma.
- Poison Toxic Principle:
- Isoquinoline alkaloids
- Causes Contact Dermatitis:
- No
- Poison Part:
- Bark
- Flowers
- Fruits
- Leaves
- Roots
- Seeds
- Stems
