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annual agoseris
Scientific Name: Agoseris heterophylla var. heterophylla
Family: Asteraceae
Category: Dicot
Growth: Forb/herb
Duration: Annual
Other Names:
Agoseris heterophylla: Annual Agoseris
Agoseris heterophylla, belonging to the Asteraceae (sunflower) family, is commonly known as annual agoseris or mountain dandelion. It may also be referred to as annual goatsbeard or false dandelion.
Considerations for Pets and Children
- This plant contains milky juice.
Taxonomy and Nomenclature
- Scientific Name: Agoseris heterophylla (Nutt.) Greene
- Family: Asteraceae (Sunflower Family)
- Group: Dicot
- Synonyms:
- Troximon chilense
- Troximon heterophyllum
- Agoseris heterophylla (Nutt.) Greene ssp. californica (Nutt.) Piper
- Agoseris heterophylla (Nutt.) Greene ssp. normalis Piper
- Agoseris heterophylla subsp. californica (Nutt.) Piper
- Varieties:
- Agoseris heterophylla var. heterophylla
- Agoseris apargioides var. apargioides
- Agoseris apargioides var. maritima
Distribution and Habitat
- Agoseris heterophylla is widespread.
- Specific locations include California, Oregon, and Washington State (e.g., Stevens County near Spokane).
Morphological Characteristics
- Duration: Annual
- Growth Habit: Forb/herb (a non-woody plant that is not a grass)
- General: Scapose, slender annual, usually glabrous.
- Size: Typically 3-40 cm tall.
- Sap: Contains milky juice.
- Leaves: Arranged in a basal rosette, egg-shaped, widest at the top, and may be covered with tiny, soft to rough hairs.
Ecological Role
- Agoseris heterophylla is considered native to CAN N L48 N.
Further Information
- USDA NRCS Idaho Plant Materials Center
- Flora of North America (FNA)
- Encyclopedia of Life (EOL)
- Oregon Flora Project
- Discover Life