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rayless goldenrod
Scientific Name: Bigelowia
Family: Asteraceae
Category: Dicot
Growth:
Duration:
Other Names:
Rayless Goldenrod: A Closer Look
Rayless goldenrod, encompassing several species, presents a fascinating subject for botanical study and raises important considerations for livestock owners.
Considerations for Pets
- Rayless goldenrod is documented as toxic to cattle, sheep, horses, and goats.
- The toxic principle is trematol.
Scientific and Common Names
- Accepted Scientific Name: Haplopappus heterophyllus
- Common Names: Rayless goldenrod, jimmyweed, rosea, alkali weed
Taxonomy and Nomenclature
- Family: Asteraceae (also known as Compositae)
- Synonyms: Isocoma pluriflora, Isocoma wrightii, Aplopappus heterophyllus
- Related Species: Bigelowia nuttallii (Nuttall’s Rayless Goldenrod), Bigelowia nudata (Pineland rayless goldenrod)
Distribution and Habitat
- Native to the southwestern United States and Mexico.
- Specifically mentioned locations include Texas, Arizona, and Florida.
- Prefers open, saline ground and habitats like pine woods, ditches, and marshy areas.
Morphological Characteristics and Growth Habits
- A perennial, multi-stemmed plant, described as a half-shrub.
- Has erect stems that arise from a woody crown.
- Typically grows to a height of 2 to 4 feet.
- May be deciduous.
Ecological Role
- Can be invasive and problematic on rangelands.
Interactions with Other Organisms
- Serves as a honey-bee food plant (specifically mentioned for Bigelowia nuttallii).
- Rayless goldenrod toxicity affects livestock if ingested, causing clinical signs and potential poisoning.
Further Information
- Referenced publication: J Vet Diagn Invest. 2010 Jul;22(4):570-7.
- Texas A. & M. College, College Station is mentioned in connection to research.
- Biodiversitylibrary.org is provided as a source of information.
- Dave's Garden mentioned as a friendly community.