Home/Species/ New Mexico Tansy-aster

Dieteria asteroides

Torr.

New Mexico Tansy-aster

G5Secure (G5?) Found in 11 roadless areas NatureServe Explorer →

G5SecureGlobal Rank

UnknownThreat Impact

Identity

Unique IDELEMENT_GLOBAL.2.158487

Element CodePDAST64130

Record TypeSPECIES

ClassificationSpecies

Classification StatusStandard

Name CategoryVascular Plant

Endemicoccurs (regularly, as a native taxon) in multiple nations

KingdomPlantae

PhylumAnthophyta

ClassDicotyledoneae

OrderAsterales

FamilyAsteraceae

GenusDieteria

Synonyms

Machaeranthera asteroides(Torr.) Greene

Concept Reference

Kartesz, 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 Comments

Kartesz (1994) - the treatment followed here - accepted Machaeranthera asteroides and M. boltoniae as distinct species and accepted three varieties of M. asteroides: var. asteroides, var. glandulosa, and var. lagunensis. That treatment also excluded plants called M. tephrodes, which it included in M. canescens ssp. canescens var. incana. FNA (vol. 20, 2006) accepts M. boltoniae as Psilactis asteroides and M. asteroides as Dieteria asteroides, with the three varieties; however, var. asteroides includes M. tephrodes. Psilactis asteroides, as treated by Kartesz (1999), included M. boltoniae and did not distinguish the separate varieties of M. asteroides (but still excluded M. tephrodes to M. canescens).

Conservation Status

Rank Method Rank calculation - Biotics v2

Review Date2023-05-25

Change Date2023-05-25

Edition Date2023-05-25

Edition AuthorsEberly (2023)

Threat ImpactUnknown

Range Extent200,000-2,500,000 square km (about 80,000-1,000,000 square miles)

Number of Occurrences81 to >300

Rank Reasons

Dieteria asteroides is a wide ranging perennial herb of the southwestern United States and northwestern Mexico. This taxon has a large range, hundreds of occurrences, and broad habitat specificity. More information is needed on threats and distribution. The identification of some material requires review.

Range Extent Comments

Dieteria asteroides occurs in the southwestern United States and northwestern Mexico (FNA 2006b, Felger et al. 2016) with three varieties recognized. The most geographically restricted is Dieteria asteroides var. lagunensis of San Diego County, California and Baja California, Mexico. By contrast, Dieteria asteroides var. asteroides is the widest ranging, occurring in Arizona, California, Nevada, New Mexico, and Chihuahua and Sonora in Mexico. Dieteria asteroides var. glandulosa is most common in Arizona, but is also found in Nevada, Utah, New Mexico, and possibly, Sonora, Mexico. Material attributed to this species and it's varieties may be misidentified, as exhibited by the number of records found outside their known range; careful review of identifications may expand upon the published range of the species.

Occurrences Comments

Based on herbarium records and photo-based observations, there are over 300 occurrences rangewide (GBIF 2022). Considering only records from the last 30 years, there are less than 300 occurrences documented.

Ecology & Habitat

Habitat

This species occurs in a variety of habitat including grasslands, scrublands, and pine/oak woodlands. It is often found along streams (FNA 2006b).

Terrestrial Habitats

Woodland - MixedShrubland/chaparralGrassland/herbaceous

Other Nations (1)

United StatesN5

Province	Rank	Native
Arizona	SNR	Yes
New Mexico	SNR	Yes
Texas	SNR	Yes
California	SNR	Yes
Utah	SNR	Yes
Nevada	S2	Yes

Plant Characteristics

DurationBIENNIAL, PERENNIAL, Short-lived

Economic Value (Genus)No

Roadless Areas (11)

Arizona (8)

Area	Forest	Acres
Boulder	Tonto National Forest	40,359
Catalina St. Pk. Roadless Area	Coronado National Forest	951
Galiuro	Coronado National Forest	28,333
Horse Mesa	Tonto National Forest	9,146
Lime Creek	Tonto National Forest	42,568
Middle Romero WSR	Coronado National Forest	60
Sierra Ancha Wilderness Contiguous	Tonto National Forest	7,787
Upper Romero Wsr	Coronado National Forest	150

California (2)

Area	Forest	Acres
Cactus Springs B	San Bernardino National Forest	3,106
Pyramid Peak B	San Bernardino National Forest	7,194

New Mexico (1)

Area	Forest	Acres
Peloncillo (NM)	Coronado National Forest	43,339

References (4)

Flora of North America Editorial Committee (FNA). 2006b. Flora of North America north of Mexico. Vol. 20. Magnoliophyta: Asteridae, part 7: Asteraceae, part 2. Oxford Univ. Press, New York. xxii + 666 pp.
Global Biodiversity Information Facility (GBIF). 2023. Global Biodiversity Information Facility (GBIF) data portal. Online. Available: https://www.gbif.org/ (accessed 2023).
Kartesz, 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.
Kartesz, J.T. 1999. A synonymized checklist and atlas with biological attributes for the vascular flora of the United States, Canada, and Greenland. First edition. In: Kartesz, J.T., and C.A. Meacham. Synthesis of the North American Flora, Version 1.0. North Carolina Botanical Garden, Chapel Hill, N.C.