No images found for this plant ID: 2240.
Ensure images are uploaded to the Media Library and tagged with "2240" in the "plant_image_tag" taxonomy.
southwestern ringstem
Scientific Name: Anulocaulis leiosolenus
Family: Nyctaginaceae
Category: Dicot
Growth: Forb/herb
Duration: Perennial
Other Names:
Southwestern Ringstem (Anulocaulis leiosolenus)
Anulocaulis leiosolenus, commonly known as Southwestern Ringstem or simply Ringstem, is a perennial wildflower found in specific regions of North America. The name "ringstem" comes from the sticky, glandular rings that encircle the stem.
Considerations for Pets
- Ringstems have glutinous brown bands at nodes on the stem.
Taxonomy and Nomenclature
- Scientific Name: Anulocaulis leiosolenus (Torr.) Standl.
- Family: Nyctaginaceae (Four O'Clock Family)
- Rank: Species
- Synonyms: Boerhavia leiosolena Torr.
- Varieties:
- Anulocaulis leiosolenus var. leiosolenus
- Anulocaulis leiosolenus var. gypsogenus (Waterf.) Spellenb. & Wootten (Gypsum Ringstem)
- Anulocaulis leiosolenus var. howardii Spellenberg & T. Wootten (Howard's Gyp Ringstem)
- Anulocaulis leiosolenus var. lasianthus I.M. Johnst.
Distribution and Habitat
- The Southwestern Ringstem is found in the southwestern United States, including Arizona, New Mexico, and Texas.
- It typically grows in calcareous clays and shales, and sometimes in gypsum-rich soils.
Morphological Characteristics and Growth Habits
- Anulocaulis leiosolenus is described as a thickly-rooted perennial wildflower.
- It is a forb/herb, meaning it is a non-woody plant that is not a grass.
- The species features sticky, glandular rings encircling the stem.
- Flowers have a perianth of 25-35mm
Interactions with Other Organisms
- The blossom buds of Southwestern Ringstem are a food source for certain insects (Kendall).
Further Information
- Flora of North America
- The Catalogue of Life