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southwestern ringstem
Scientific Name: Anulocaulis leiosolenus var. leiosolenus
Family: Nyctaginaceae
Category: Dicot
Growth: Forb/herb
Duration: Perennial
Other Names:
Southwestern Ringstem (Anulocaulis leiosolenus)
The plant known commonly as Southwestern Ringstem, is scientifically classified as Anulocaulis leiosolenus.
Considerations for Pets
- The text mentions that Ringstems have glutinous brown bands, indicating a sticky substance may be present.
Taxonomy and Nomenclature
- Scientific Name: Anulocaulis leiosolenus (Torr.) Standl.
- Family: Nyctaginaceae
- Rank: Species
- Synonyms: Boerhavia leiosolena Torr.
- Varieties:
- Anulocaulis leiosolenus var. leiosolenus
- Anulocaulis leiosolenus var. gypsogenus (Waterf.) Spellenb. & Wootten (Gypsum Ringstem)
- Anulocaulis leiosolenus var. howardii Spellenb. & Wootten (Howard's gyp ringstem)
- Anulocaulis leiosolenus var. lasianthus I.M. Johnst.
Common Names
- Southwestern Ringstem
- Ringstem
- Gypsum Ringstem (for Anulocaulis leiosolenus var. gypsogenus)
- Howard's gyp ringstem (for Anulocaulis leiosolenus var. howardii)
Distribution and Habitat
- The Southwestern Ringstem is found in the southwestern United States, including Arizona, New Mexico, and Texas.
- It grows in calcareous clays and shales, sometimes gypsum-rich soils.
Morphological Characteristics
- Ringstems are described as thickly-rooted perennial wildflowers.
- The common name "ringstem" comes from the sticky, glandular rings encircling the stem.
- It is classified as a forb/herb, meaning it is a non-woody plant that is not a grass.
Interactions with Other Organisms
- It is mentioned that certain insects feed on the blossom buds of the Southwestern Ringstem.
Quirky Facts
- The common name 'ringstem' derives from the sticky, glandular rings encircling the stem.
Further Information
- Flora of North America
- United States Department of Agriculture