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History of List Changes

You may notice that taxa once on the New Mexico Rare Plants list are no longer there or that new taxa have appeared. This reflects changes in our combined knowledge of New Mexico's rare plants. Taxa that no longer appear on the list, after careful consideration, were removed because they do not qualify as being rare by our definition. A table of changes to the list appears below. Reports for species removed from the list can be accessed through the links below and also appear in Species Considered, but dropped which can be accessed from the side bar on the left.

Taxa Added or Dropped from the Rare Plant List

[2001] [2003] [2005] [2007] [2008] [2010] [2011] [2012] [2013]

2001

Taxon

Action

Date

Reason

Lesquerella pruinosa

Add

3/2/01

Newly discovered in northwestern New Mexico and rare in Colorado.

Packera cynthioides (=Senecio cynthioides)

Drop

3/12/01

Specimen annotations by Deb Trock extend range and abundance beyond our definition of rare.

Sclerocactus cloveriae ssp. cloveriae

Drop

8/2/01

Range determined to be slightly more than 100 miles and too abundant within that range to qualify as rare.

Phacelia neomexicana

Drop

10/1/01

There are too many occurrences over a broad range to be considered rare even though individual populations are small and scattered.

Sedum integrifolium ssp. neomexicanum

Add

10/12/01

Published in Clausen, 1975; endemic to Sierra Blanca peak.

Cuscuta fasciculata

Add

10/12/01

Known only from the type specimen. Taxonomy needs study, but this species is in same category as several other taxa on our rare list that are known only from a single specimen.

Apacheria chiricahuensis

Drop

10/29/01

This species occurs on both limestone and rhyolite in the Black Range, San Mateo, San Andres, and Animas mountains in New Mexico, and the Chiricahua and Dragoon mountains in Arizona. This is a range of about 180 miles. It is reported to be fairly common in suitable habitat in the San Mateo Mountains and Richard Worthington reported that it can be abundant in suitable habitat in the Animas Mountains. The species, therefore, does not meet our criterion of being infrequent throughout its entire range if the range exceeds 100 miles.

Clematis bigelovii

Drop

10/29/01

This species occurs in Sandoval, Bernalillo, Lincoln, Sierra, and Grant counties, New Mexico, and at a few sites in immediately adjacent Arizona. This range from north-central to southwestern New Mexico is well over 100 miles. The Flora of North America says it is locally common and several in the Council confirmed that this is true at least for the Sandia Mountains. The species, therefore, does not meet our criterion of being infrequent throughout its entire range if the range exceeds 100 miles.

Iliamna grandiflora

Drop

10/29/01

Distribution includes NM, CO, AZ, and UT. Not considered rare by any other State. Not tracked by AZ HDMS; G3?Q, S1 by CNHP and not in CO Rare Plant Field Guide; not included as an endemic or rare plant of Utah in any of the following categories: rare, watch, peripheral, infrequent, taxonomic problems, or additional data needed.

Potentilla oblanceolata

Drop

10/29/01

This is a species from Mexico. There are no specimens documenting its occurrence in New Mexico. Our inclusion on the list was based on a citation in Rydberg (1908) of southwestern New Mexico without specific locality. Rydberg may have misinterpreted previous information or made an incorrect extrapolation of range. The range of this species in Mexico exceeds 100 miles. It is best to exclude this species from our list for now. If plants are found in New Mexico, it can be re-evaluated for rare status.

Stipa curvifolia

Drop

10/29/01

This species occurs in New Mexico, Texas, Chihuahua, and Coahuila, which is well over 100 miles. Bob Sivinski reports it as a dominant grass on some ridges on the east side of the Guadalupe Mountains. Richard Worthington says it is equally common in the Delaware Mountains in Texas. The species, therefore, does not meet our criterion of being infrequent throughout its entire range if the range exceeds 100 miles.

Proboscidea sabulosa

Drop

10/31/01

Not infrequent enough within its broad range to meet our definition of rare.

Pseudocymopteris longiratiatus

Drop

10/31/01

Range determined to be over 200 miles and "frequent" in the Sacramento Mts.

Packera neomexicana var. metcalfei (=Senecio neomexicanus var. metcalfei)

Drop

10/31/01

Deb Trock's annotations of UNM specimens extend the range beyond our definition of rare.

2003

Taxon

Action

Date

Reason

Polygonatum cobrense

Drop

3/15/03

Treated as a synonym of Polygonatum biflorum, a common species, in FNA, Vol. 26. The NMRPTC accepts this taxonomic treatment.

Physaria gordonii ssp. densifolia

Drop

3/15/03

The NMRPTC has concluded that this subspecies is a trivial environmentally controlled variant of Physaria gordonii.

Muhlenbergia arsenei

Add

3/15/03

This grass has a broad range, but is rare throughout .

2005

Taxon

Action

Date

Reason

Philadelphus wootonii

Drop

3/4/05

The NMRPTC has concluded that this plant, known from only two specimens, is an insignificant variant of Philadelphus microphyllus var. argyrocalyx.

Selaginella weatherbiana

Drop

3/4/05

This plant has been found to have a broad range in Colorado and is too abundant to qualify as rare under NMRPTC criteria.

Trifolium brandegeei

Drop

3/4/05

The documented range of this species is at least 150 miles and its abundance in Colorado is too great to qualify as rare under NMRPTC criteria.

Eriogonum capillare

Drop

3/4/05

The study by Reichenbacher et al. (1993) in Arizona brought the number of locations up to 64 and documented an east to west range of about 120 miles, which is too great to qualify as rare under NMRPTC criteria.

Penstemon lentus

Drop

3/4/05

This plant is a Four Corners endemic that is much more abundant in Colorado and Utah than in New Mexico or Arizona. Its total range is about 160 miles. The range and abundance are too great to qualify as rare under NMRPTC criteria.

Penstemon breviculus

Drop

3/4/05

This species is a Four Corners endemic. There are 52 documented occurrences over a range of about 195 miles. The range and abundance of this species are too great to qualify as rare under NMRPTC criteria.

Penstemon ramosus

Drop

3/4/05

Anderson et al. (2004) found that Penstemon ramosus is not distinguishable from P. lanceolatus, a fairly common species in Mexico. The NMRPTC accepts this taxonomic treatement.

Eurybia horrida

Drop

3/4/05

This species has a range of at least 125 miles and is fairly frequent within its range. The range and abundance of this species are too great to qualify as rare under NMRPTC criteria.

2007

Taxon

Action

Date

Reason

Adenophyllum wrightii var. wrightii

Drop

3/30/07

This variety was found to be common within its range in New Mexico during the wet summer of 2006. Its presence in Chihuahua, Mexico, extends its total range to well over 100 miles. Since it is fairly frequent within its range and has a total range greater than 100 miles, it does not qualify as rare under NMRPTC criteria.

Penstemon deaveri

Drop

3/30/07

This species has been found to be relatively common in east-central Arizona and it has a total range of at least 250 miles. Since it is fairly frequent within its range and has a total range greater than 100 miles, it does not qualify as rare under NMRPTC criteria.

Brachystigma wrightii

Drop

3/30/07

This species has been found to be relatively common and evenly distributed in the Sky Island mountain ranges of southeastern Arizona. Its range extends from the Animas to the Atascosa mountains, a distance of about 145 miles. Since it is fairly frequent within its range and has a total range greater than 100 miles, it does not qualify as rare under NMRPTC criteria.

Packera quaerens

Drop

3/30/07

Treated as a synonym of Packera hartiana, which occurs in Arizona, New Mexico, and Texas, in FNA, Vol. 20. The NMRPTC accepts this taxonomic treatment.

Grindelia acutifolia

Drop

3/30/07

Treated as a synonym of Grindelia hirsutula, a common species, in FNA, Vol. 20. The NMRPTC accepts this taxonomic treatment.

Cymopterus breviradiatus

Drop

3/30/07

Ron Hartman (Pers. Comm. 2007) indicates this species will be treated as a synonym of Cymopterus sessiliflorus in the Four Corners Flora now in preparation. The NMRPTC accepts this taxonomic treatment. Cymopterus sessiliflorus has a range greater than 100 miles and is fairly common so it does not qualify as rare under NMRPTC criteria.

Astragalus cliffordii

Add

3/30/07

This species was named in 2003 and as of 2007 it was still known only from the type locality in McKinley County, New Mexico.

Astragalus heilii

Add

3/30/07

This species was named in 2003 and as of 2007 it was still known only from the type locality in McKinley County, New Mexico.

Astragalus missouriensis var. humistratus

Add

3/30/07

This variety is endemic to soils derived from the Mancos and Lewis formations. It is restricted to a few locations in southwestern Colorado and northwestern New Mexico.

Phacelia sivinski

Add

3/30/07

This species was named in 2005. It is restricted to gypsum and found at relatively few locations.

Mentzelia todiltoensis

Add

3/30/07

This species was named in 2005. It is restricted to gypsum and found at relatively few locations.

Senecio cliffordii

Add

3/30/07

Although widely distributed, this rare species occurs in very small, sporadic populations. The NMRPTC does not accept the treatment in FNA, Vol. 20 that places this species in synonymy with Packera spellenbergii.

Eriogonum lachnogynum var. sarahiae

Add

3/30/07

This taxon was named in 2003. It is restricted to a few very small, widely scattered populations.

Eriogonum lachnogynum var. colobum

Add

3/30/07

This variety was named in 2004. It is endemic to New Mexico and restricted to a few very small, widely scattered populations.

Cuscuta warneri

Add

3/30/07

This species was formerly know from one location in Utah. It was collected in New Mexico in 1998.

Astragalus humistratus var. crispulus

Add

3/30/07

Barneby named this rare milkvetch in 1964 and he collected it in New Mexico. It was overlooked until recently as a component of the New Mexico flora.

Microthelys rubocallosa

Add

3/30/07

This species was discovered at a single location in New Mexico in 2004. It is otherwise known from only a few scattered locations in Mexico.

2008

Taxon

Action

Date

Reason

Draba smithii

Add

11/7/08

This species is rare in Colorado where it is known from a few scattered localities. Heil and O'Kane discovered it in New Mexico in 2008.

Hexalectris revoluta

Add

11/7/08

This is a rare plant throughout its range. There are no specimens from New Mexico, but there is a photograph with precise location information documenting the species in New Mexico.

Solidago wrightii var. guadalupensis

Add

11/7/08

This new variety, published by Nesom in 2008, is endemic to the Guadalupe and southeastern Sacramento mountains. It has a total range of less than 100 miles.

Agalinis calycina

Add

11/7/08

This species is a wetland obligate. It has only three known occurrences, one of them at Bitter Lake NWR near Roswell.

Heuchera woodsiaphila

Add

11/7/08

This species was named in 2008. It appears to be endemic to the Capitan Mountains in southeastern New Mexico.

Phacelia cloudcroftensis

Add

11/7/08

This species was named in 2007. It is known from very few occurrences in the Sacramento Mountains.

2010

Taxon

Action

Date

Reason

Draba heilii

Add

4/1/10

This species was named in 2009. It is known from very few occurrences in alpine tundra of the Pecos Wilderness.

2011

Taxon

Action

Date

Reason

Ephedra coryi

Drop

2/25/11

Plants from central New Mexico have been misidentified as Ephedra coryi. This is a Texas plant (perhaps also in SE New Mexico) that does not qualify as rare under NMRPTC criteria.

Cuscuta fasciculata

Drop

3/17/11

This plant, known only from the type specimen, is treated as a synonym of Cuscuta umbellata by Costea and Stefanovic (2010). The NMRPTC accepts this taxonomic treatment.

Solidago capulinensis

Add

6/17/11

This plant was named in 1936 based on a specimen from Union County. It was overlooked for many years as part of the New Mexico flora.

Linum allredii

Add

7/11/11

This species was named in 2011. It appears to be restricted to gypsum soils.

2012

Taxon

Action

Date

Reason

Aliciella cliffordii

Add

2/16/12

This species was named in 2011. It is a narrow endemic formerly included within Aliciella haydenii.

Geranium dodecatheoides

Add

2/24/12

This species was named in 2011. It is known from a single canyon in the Sacramento Mountains.

Phlox vermejoensis

Add

3/30/12

This species was named in 2011. It is known from a very small area of alpine tundra in the Sangre de Cristo Mountains.

Cymopterus spellenbergii

Add

3/30/12

This species was named in 2011. It has a small range in Taos and Rio Arriba counties. It was formerly included in Cymopterus sessiliflorus.

2013

Taxon

Action

Date

Reason

Sibara grisea

Drop

1/15/14

Synonym of the more widespread Thelypodium texanum.

Delphinium sapellonis

Drop

1/15/14

Too widespread. No longer fits the NMRPTC definition for rare.

Mentzelia filifolia

Add

1/15/14

Only known from a few locations in McKinley County, NM, and Apache County, AZ.

Paronychia wilkinsonii

Add

1/15/14

Relatively widespread, but in few populations in TX and NM. Only known from one loaction in NM, where it is potentially threatened by land management activities.


Photo credits in header Peniocereus greggii var. greggii © T. Todsen,
Lepidospartum burgessii © M. Howard, Argemone pleiacantha ssp. pinnatisecta © R. Sivinski
Design: J. Mygatt; Copyright © 1999-2005 New Mexico Rare Plant Technical Council