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Plant Database
American cancer-root

American cancer-root

Conopholis americana

herbaceous part shade💧💧 moderate water Hardy: Zone 3aZone 8b

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American cancer-root is a parasitic perennial plant native to eastern North America that produces small brownish-purple flowers in spring. It depends on the roots of host plants (particularly oak and beech) to survive and is rarely cultivated in home gardens.

Overview

Form
Upright
Growth Rate
slow
Size
0.5–1.5′ tall
Dormancy
deciduous
Family
Orobanchaceae

Native to the United States

Native Range

Eastern North America

Native to: Alabama, Arkansas, Connecticut, Delaware, Georgia, Kentucky, Massachusetts, Maryland, Maine, Michigan, Missouri, North Carolina, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, South Carolina, Tennessee, Virginia, Vermont, West Virginia

Seasonality

Bloom Season

J
F
M
A
M
J
J
A
S
O
N
D

Season of Interest

Spring

Companion Planting

Plants well with