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Twinbugs (Dicoria)

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Home « California « San diego « Dicoria

Twinbugs Genus Details

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Dicoria canescens is a spreading, annual herbaceous plant that is 1 to 3 feet tall. The ridged stem has leaves with coarse white hairs, long leaf stems that are longer on the lower portion, and more oval-shaped leaves on the upper region of the stem. Compound flower heads are located in several leafy, long flowering structures called panicles. Dicoria brandegei is similar in appearance and height but leaves are linear or oblong lance-shaped.

Twinbugs Allergy Info

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These species are considered possible causes of pollinosis, but their overall importance has not been studied extensively. Members of the Asteraceae family can cause allergic reactions to some individuals. Dicoria is wind pollinated and this increases its exposure to allergic individuals.

Twinbugs Pollen Description

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Pollen grains of Dicoria are oblate-spheroidal to prolate-spheroidal; the amb triangular and 3-4 colporate. The sexine is thick, tectate, and is covered with short spines.
Dicoria canescens, single grain. Herb. MIN
Dicoria canescens, single grain. Herb. MIN
Dicoria canescens, multiple grains. Herb. MIN
Dicoria canescens, multiple grains. Herb. MIN

Species in This Genus

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Allergenicity Legend:
Mild Allergen Mild Allergen  |  Moderate Allergen Moderate Allergen  |  Severe Allergen Severe Allergen  |  Allergy Test Allergy Test Available
Twinbugs (Dicoria) is a genus of the ASTERACEAE family.
This genus includes the following allergenic species:

Allergens and Plants Search

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Twinbugs Genus Location

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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

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