Taraxacum officinale

Species category

Vegetable

Common name

common dandelion, blowball, faceclock, dandelion

Diagnostic characters

Planting unit

AcheneAchene:
A dry, hard, one-chambered, one-seeded indehiscent fruit, as in buckwheat (Fagopyrum) or sunflower (Helianthus). The fruit wall is not united with the seed coat.

Shape

ObovateObovate:
Inverted egg shaped with apical end the broadest.
with long beak

Size

Length 2.5–3.2 mm
Width 0.7–1 mm
Thickness 0.7–1 mm

Color

Yellow

Texture

Ribs with spines that increase in size as they approach the apexApical:
The distal end of the fruit or seed away from the point of attachment or attachment scar.
.

Other structures

Usually a short remnant of very long beak; longitudinal ribs.

Identification notes

AchenesAchene:
A dry, hard, one-chambered, one-seeded indehiscent fruit, as in buckwheat (Fagopyrum) or sunflower (Helianthus). The fruit wall is not united with the seed coat.
are mostly obovateObovate:
Inverted egg shaped with apical end the broadest.
with a long beak, which is usually broken off, leaving a short blunt remnant at the apexApical:
The distal end of the fruit or seed away from the point of attachment or attachment scar.
. AchenesAchene:
A dry, hard, one-chambered, one-seeded indehiscent fruit, as in buckwheat (Fagopyrum) or sunflower (Helianthus). The fruit wall is not united with the seed coat.
have strong ribs which bear small tubercles at the base but become progressively larger and upward-pointed nearing the apexApical:
The distal end of the fruit or seed away from the point of attachment or attachment scar.
. The color is straw-yellow but occasionally brown.

Noxious weed seed categories

Not listed

AOSA examination list

Included

Nomenclature

Family

Asteraceae

Valid name

Taraxacum officinale F.H. Wigg.

Synonyms

Taraxacum ambigens Fernald
Taraxacum amphiphron Böcher
Taraxacum ambigens Fernald var. flutius
Taraxacum arctogenum
Dahlst.
Taraxacum brachyceras Dahlst.
Taraxacum carthamopsis A.E. Porsild
Taraxacum ceratophorum (Ledeb.) DC.
Taraxacum dumetorum Greene
Taraxacum eurylepium Dahlst.
Taraxacum hyperboreum Dahlst.
Taraxacum integratum G.E. Haglund
Taraxacum lacerum Greene
Taraxacum lapponicum Kihlm. ex Hand.-Maz.
Taraxacum laurentianum Fernald
Taraxacum latispinulosum M.P. Christ.
Taraxacum longii Fernald T
araxacum malteanum Dahlst.
Taraxacum maurolepium G.E. Haglund
Taraxacum mitratum G.E. Haglund
Taraxacum multesimum G.E. Haglund
Taraxacum naevosum Dahlst.
Taraxacum ovinum Rydb.
Taraxacum paucisquamosum M. Peck
Taraxacum pellianum A.E. Porsild
Taraxacum pseudonorvegicum Dahlst.
Taraxacum purpuridens Dahlst.
Taraxacum torngatense Fernald
Taraxacum trigonolobum Dahlst.
Taraxacum umbrinum Dahlst.

 Taraxacum officinale.  Achenes with a long beak, which is usually broken off, leaving a short, blunt remnant at the apex.
Taraxacum officinale. Achenes with a long beak, which is usually broken off, leaving a short, blunt remnant at the apex.