Search By Location 
 

Water-Milfoil (Myriophyllum)

section divider
Home « Myriophyllum

Water-Milfoil Genus Details

section divider
Water milfoil is a perennial native to North America. It is an aquatic plant with leaves in bunches of fours spiralling around a purplish red stem. Male flowers are purplish and appear at the end of the flowering stem. The lower whitish flowers are female. Reproduction is from seeds, fragmentation and winterbuds. If the levels of water milfoil get high enough, they may impede water flow in irrigation ditches, drainage canals and water ways.

Water-Milfoil Allergy Info

section divider
Pollen is wind dispersed from spring to fall depending on locality. Allergencity is not extensively studied.

Water-Milfoil Pollen Description

section divider
No pollen description is currently available.

Species in This Genus

section divider
Allergenicity Legend:
Mild Allergen Mild Allergen  |  Moderate Allergen Moderate Allergen  |  Severe Allergen Severe Allergen  |  Allergy Test Allergy Test Available
Water-Milfoil (Myriophyllum) is a genus of the HALORAGACEAE family.
This genus includes the following allergenic species:

Allergens and Plants Search

section divider Enter a full or partial species name to find more information on one of over 1200 potentially allergenic plants. For example, you can find chenopods searching on "cheno" (no quotes) as Latin Name.

Search By Plant Name:
 
 Common Name    Latin Name

Search By Alphabet:
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Advertisement

Water-Milfoil Genus Location

section divider
The shaded areas on the map indicates where the genus has been observed in the United States. Click the map to see a full scale version of these allergy areas.
  - Native, observed in a county
  - Introduced, observed in a county
  - Rarely observed

Related Links

section divider
Advertisement
facebook_twitter

Advertisement