Conium maculatum
(Poison Hemlock)
Conium maculatum, Barefoot RV Park, Bend, San Saba Co. 9531
Conium maculatum, Barefoot RV Park, Bend, San Saba Co. 9529
Conium maculatum, Pedernales Falls State Park, Blanco Co. 7177
Conium maculatum, Barefoot RV Park, Bend, San Saba Co. 9536
Conium maculatum, Pedernales Falls State Park, Blanco Co. 7170
Conium maculatum, Pedernales Falls State Park, Blanco Co. 7178
Conium maculatum, Barefoot RV Park, Bend, San Saba Co. 9538
| Scientific Name | Conium maculatum | USDA PLANTS Symbol | COMA2 |
| Common Name | Poison Hemlock | ITIS Taxonomic Serial No. | 29473 |
| Family | Apiaceae (Parsley) | SEINet Reference |
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| Description | Habitat: Creek and river bottoms, waste places, weedy areas, and woodland borders. Plant: Erect, smooth biennial 1-1/2 to 8 feet tall, branchings stems with purple-red spots. Leaves: Broad, three-times pinnately-divided leaves 3 to 12 inches long; ultimate lobes pinnately-incised. Inflorescence: Compound umble 2 to 6 inches across with 8 to 16 umbellets; each umbellet with 12 to 25 small white flowers, each about 1/8-inch across with 5 petals and 5 protruding white stamens. Bloom Period: March to June. References: Illinois Wildflowers and "Wildflowers of the Texas Hill Country" by Marshall Enquist. |
BONAP Distribution Map Map Color Key |
Texas Status: Introduced INVASIVE POISONOUS |
Banner photo of Castilleja indivisa and Lupinus ssp. taken along FM 1323 north of Johnson City, Blanco County
© Tom Lebsack 2024