White Snakeroot
Ageratina altissima
Plantae
COMMON
Stats
- Lifespan
- Perennial
- Size
- Small
- Diet
- Photosynthetic
- Biome
- Temperate forest
- Range
- North America
- Movement
- Sessile
- Breeding
- Seeds
- Defense
- Toxins
- Status
- Common
About
A poisonous perennial herb of eastern North American woodlands, notorious for causing milk sickness — a fatal illness spread through the milk of cattle that grazed on it, responsible for the death of Abraham Lincoln's mother in 1818. Its flat-topped clusters of tiny white flowers bloom from late summer into autumn along shaded forest edges.
Life cycle
- 1.seedA dormant seed waits for water and warmth before germinating.
- 2.sproutA first shoot emerges with cotyledon leaves and a tap root reaching down.
- 3.saplingA young plant grows true leaves and a stem or trunk, putting on height each season.
- 4.matureFully grown, flowering or fruiting at adult size.
Learn more
Taxonomy
- Kingdom
- Plantae
- Phylum
- Tracheophyta
- Class
- Magnoliopsida
- Order
- Asterales
- Family
- Asteraceae
- Genus
- Ageratina
- Species
- Ageratina altissima