Dittrichia graveolens (L.) W. Greuter


Dittrichia graveolens is an annual herb with a very rank smell that can grow up to 7.9-51.2 in. (0.2-1.3 m) tall.
Leaves are alternate, linear, oblong, 0.79-3.9 in. (2-10 cm) long, and soft with entire margins, acute tips, and hairy edges.
Flower heads are small, bell shaped, 0.18-0.39 in. (4.5-10 mm) long, and found in long loose panicles. Flowers are yellow and 0.16-0.28 in. (4-7 mm) long.
Fruits are cylindrical, light brown, 0.08 in. (2 mm) long, and narrow at the top then expanded at the base. Seeds are 30 bristles, fluffy, 0.12-0.16 in. (3-4 mm) long attached at the base.
Ecological Threat
Dittrichia graveolens can be found in pastures, wastelands, and along roadsides. It is native to the Mediterranean. This plant can cause severe contact dermatitis to humans and can kill livestock.

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EDDMapS Distribution

EDDMapS Distribution - This map is incomplete and is based only on current site and county level reports made by experts, herbaria, and literature. For more information, visit

State Regulated List

State Regulated List - This map identifies those states that list this species on their regulated list. For more information, visit

Invasive Listing Sources

Taxonomic Rank

Kingdom: Plantae
Phylum: Magnoliophyta
Class: Magnoliopsida
Subclass: Asteridae
Order: Asterales
Family: Asteraceae
Genus: Dittrichia
Subject: Dittrichia graveolens (L.) W. Greuter


Plants - Forbs/Herbs