Thistle poppy

Quick look

Argemone polyanthemos, the crested pricklypoppy, also known as bluestem prickly poppy, pricklypoppy, white prickly poppy, annual pricklypoppy, or as thistle poppy is an annual plant with yellow sap and showy white flowers in the poppy family (Papaveraceae).

• It belongs to the Papaveraceae family. ^iNaturalist
• USDA PLANTS describes it as an herb (forb) with a annual, biennial, perennial life cycle. ^{USDA PLANTS}
• USDA PLANTS lists it as native in the lower 48 states and records it in 16 states. ^{USDA PLANTS}
• NatureServe lists it as native to Colorado and Nebraska. ^NatureServe
• In Colorado, most iNaturalist sightings of it in flower come in June–September. ^iNaturalist
• In Nebraska, most iNaturalist sightings of it in flower come in June–September. ^iNaturalist
• USDA PLANTS lists its flower color as white. ^{USDA PLANTS}
• USDA PLANTS gives its bloom period as mid spring. ^{USDA PLANTS}
• USDA PLANTS lists a mature height of about 3 ft. ^{USDA PLANTS}
• iNaturalist has 3,461 research-grade sightings of it in Colorado, ranking #39 among the 110 flowers on our Colorado list. ^iNaturalist
• iNaturalist has 445 research-grade sightings of it in Nebraska, ranking #16 among the 108 flowers on our Nebraska list. ^iNaturalist