(Torr.) Standl.
Identity
Unique IDELEMENT_GLOBAL.2.956157
Element CodePDNYC05060
Record TypeSPECIES
ClassificationSpecies
Classification StatusStandard
Name CategoryVascular Plant
Endemicoccurs (regularly, as a native taxon) in multiple nations
KingdomPlantae
PhylumAnthophyta
ClassDicotyledoneae
OrderCaryophyllales
FamilyNyctaginaceae
GenusAnulocaulis
Concept ReferenceFlora of North America Editorial Committee (FNA). 2003b. Flora of North America north of Mexico. Vol. 4, Magnoliophyta: Caryophyllidae, part 1. Oxford University Press, New York. xxiv + 559 pp.
Taxonomic CommentsThis is a record for Anulocaulis leiosolenus in the broad sense, including Anulocaulis gypsogenus as in Spellenberg and Wooten (1999). FNA (vol. 4, 2003) follows that treatment, including Anulocaulis gypsogenus (= A. leiosolenus var. gypsogenus) as a variety of A. leiosolenus, while Kartesz (1994) treated it as a distinct species. A cladistic analysis provides further support for this treatment (Hernández-Ledesma et al. 2010).
Conservation Status
Rank Method Rank calculation - Biotics v2
Review Date2021-11-01
Change Date2015-12-08
Edition Date2021-11-01
Edition AuthorsPoole, J.M. (1991), rev. Treher (2021)
Range Extent200,000-2,500,000 square km (about 80,000-1,000,000 square miles)
Number of Occurrences81 - 300
Rank ReasonsAnulocaulis leiosolenus occurs as a perennial herb in the southwestern United States and adjacent northern Mexico (Chihuahua) where it occurs at scattered isolated locations accounting for the range of four distinct varieties. Surveys are needed to better understand threats and population sizes of most varieties.
Range Extent CommentsAnulocaulis leiosolenus occurs in the southwestern United States and adjacent northern Mexico (Chihuahua), where it occurs at scattered isolated locations accounting for the range of four distinct varieties (Hernández-Ledesma et al. 2010, FNA 2003b). Anulocaulis leiosolenus var. howardii is restricted to a single gypsum outcrop on the western slopes of the Guadalupe Mountains in New Mexico. Anulocaulis leiosolenus var. leiosolenus occurs in the southwestern United States and northern Mexico in two disjunct areas, in southern Nevada and northeastern Arizona, and New Mexico, western Texas and northwest Chihuahua (Hernández-Ledesma 2010). Anulocaulis leiosolenus var. gypsogenus occurs in New Mexico and Texas along the Pecos River. Anulocaulis leiosolenus var. lasianthus occurs in western Texas and adjacent Chihuahua, Mexico (Hernández-Ledesma et al. 2010, FNA 2003b, NMRPTC 1999).
Occurrences CommentsSee each variety for more details.
Threat Impact CommentsSee each variety for more details.