Identity
Unique IDELEMENT_GLOBAL.2.155337
Element CodePDLAM0M0L0
Record TypeSPECIES
ClassificationSpecies
Classification StatusStandard
Name CategoryVascular Plant
KingdomPlantae
PhylumAnthophyta
ClassDicotyledoneae
OrderLamiales
FamilyLamiaceae
GenusHedeoma
SynonymsHedeoma costatumGray
Concept ReferenceKartesz, J.T. 1994. A synonymized checklist of the vascular flora of the United States, Canada, and Greenland. 2nd edition. 2 vols. Timber Press, Portland, OR.
Taxonomic CommentsName spelled 'costatum' in some floras.
Conservation Status
Review Date1999-12-31
Change Date2000-02-03
Edition Date2000-01-28
Edition AuthorsWilliam R. Carr
Range Extent20,000-2,500,000 square km (about 8000-1,000,000 square miles)
Number of Occurrences81 to >300
Rank ReasonsHedeoma costata var. pulchella (Greene) Irving occupies a wide variety of nondescript habitats across a global range from the southwestern United States to Zacatecas, Mexico. Although no occurrence information is available, hundreds if not thousands of populations can be expected. The other variety, Hedeoma costata Gray var. costata, occurs in more mesic sites at middle to higher elevations in the Mexican mountains from Nuevo Le?n south to Hidalgo and Chiapas (Irving, 1980), and might be ranked G5T3T4.
Range Extent CommentsHedeoma costata var. pulchella ranges from the desert mountains of the southwestern U.S. (Arizona, New Mexico and Texas) south to Chihuahua, Coahuila, Nuevo Le?n and Zacatecas in Mexico (Irving, 1980).
Occurrences CommentsHedeoma costata var. pulchella ranges from the southwestern U.S. to northern Mexico and occupies a broad spectrum of habitats. Although no occurrence information has been collected, well over 100 occurrences can be expected.
Threat Impact CommentsThreats to Hedeoma costata var. pulchella are unknown and, when compared to globally rare plants of the region, relatively non-existent or at best very local. The taxon is globally widespread and occupies a broad spectrum of habitats, and it is hard to imagine a suite of serial or simultaneous threats that could adversely affect the taxon throughout its range.