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Weed Identification

large hopclover

Family

Fabaceae

Scientific Name

Trifolium aureum

Other Common Names:

large hop trefoil
golden clover

Synonyms (former Scientific Names):

T. strepens
Chrysaspis aurea
T. agrarium

Habit

This is an erect clover growing to about 1.5' tall and branching

Leaves

Trifoliate leaves with slender, hairless, toothed leaflets, fixed directly to the stem.

Identifying Characteristics

This species is noted for its distinct flower that resembles fresh hops in appearance. It is similar to several other hopflowers, but is taller and more upright.

Flower Seed Head

A yellow, lustrous flower makes a dense, oval shape with delta-shaped petals. Flower is up to 1 inch across

Seed Fruit

2 small peas in a pod.

Where Found

Native to Eurasia, but common across cool areas in the Mid-Atlantic. Often in dry areas such as roadsides

Growth Habit

upright and nonwoody

Thorns or Spines

not present

Approximate Flower Diameter

Varies: 
dime
nickle

Dominant Flower Color

yellow

Flower Symmetry

radial symmetery

Leaf Hairs

no hairs

Leaf Shape

Varies: 
round
oval
triangle

Leaf Arrangement

alternate

Leaf Margin

serrated

Leaf Structure

trifoliate

Leaf Stalk

none

Stem Hairs

Varies: 
has hairs
no hairs

Stem Cross Section

round or oval

Milky Sap

not present

Root Structure

fibrous

Life Cycle

winter annual

Ochrea

not present

Plant Type

Herb