Agency Status of New Mexico Rare Plants

Please Note: Plants followed by the statement "(Not NMRPTC Rare)" do not meet NMRPTC criteria for rarity, but do have status with one or more agencies.

Taxon	USFWS	State of NM	USFS	BLM	Navajo Nation	Natural Heritage NM	Global Rank
Abronia bigelovii	SoC	SoC	Sen	Sen	.	S3	G3
Abronia bolackii	SoC	SoC	.	.	.	SNR	GNR
Adenophyllum wrightii var. wrightii (Not NMRPTC Rare)	SoC	.	Sen	.	.	SH	G1?
Agalinis calycina	SoC	SoC	.	.	.	S1	G1
Agastache cana	SoC	SoC	.	.	.	S3	G4
Agastache pringlei var. verticillata	SoC	SoC	.	.	.	S2	G3G4T2
Aliciella cliffordii	SoC	SoC	.	.	.	SNR	GNR
Aliciella formosa	SoC	E	.	Sen	Gp 4	S2	G2
Allium gooddingii (Not NMRPTC Rare)	SoC	E	Sen	.	Gp 3	S1	G4
Amsonia fugatei	SoC	SoC	.	Sen	.	S2	G2
Amsonia tharpii	SoC	E	.	Sen	.	S1	G1
Anticlea mogollonensis	SoC	SoC	Sen	.	.	S3	G3
Anulocaulis leiosolenus var. gypsogenus	SoC	SoC	.	.	.	S4	G4T4
Anulocaulis leiosolenus var. howardii	SoC	SoC	.	Sen	.	SNR	G4T2
Aquilegia chaplinei	SoC	SoC	Sen	Sen	.	S2	G4T2
Argemone pinnatisecta	E	E	E	E	.	S2	G4G5T2
Arida blepharophylla	SoC	SoC	.	.	.	SH	G1
Asclepias sanjuanensis	SoC	SoC	.	Sen	Gp 4	S3	GUQ
Asclepias uncialis ssp. uncialis (Not NMRPTC Rare)	SoC	.	Sen	.	.	S2	G3G4T2T3
Astragalus altus	SoC	SoC	Sen	.	.	S2	G2
Astragalus castetteri	SoC	SoC	.	.	.	S3	G3
Astragalus chuskanus	SoC	SoC	.	.	.	S2?	G3
Astragalus cliffordii	SoC	SoC	.	.	.	SNR	GNR
Astragalus cobrensis var. maguirei	SoC	SoC	Sen	Sen	.	S2	G4T2
Astragalus cottamii	SoC	SoC	.	.	.	S3	G4
Astragalus cyaneus	SoC	SoC	.	.	.	S4	G4
Astragalus feensis	SoC	SoC	.	.	.	S3	G3
Astragalus gypsodes	SoC	SoC	.	Sen	.	S2	G2
Astragalus heilii	SoC	SoC	.	.	Gp 4	SNR	G1?
Astragalus humillimus	E	E	.	E	Gp 2	S1	G1
Astragalus humistratus var. crispulus	SoC	SoC	Sen	.	.	SNR	G4G5T3?
Astragalus kerrii	SoC	SoC	Sen	.	.	S2	G2
Astragalus knightii	SoC	SoC	.	Sen	.	S2	G2
Astragalus micromerius	SoC	SoC	Sen	.	.	S2	G2
Astragalus missouriensis var. accumbens	SoC	SoC	Sen	.	.	S3	G3
Astragalus missouriensis var. humistratus	SoC	SoC	Sen	.	.	SNR	G5T1
Astragalus naturitensis	SoC	SoC	.	.	Gp 3	S2	G2G3
Astragalus neomexicanus	SoC	SoC	.	.	.	S3	G3
Astragalus nutriosensis	SoC	SoC	.	.	.	SNR	G3?
Astragalus oocalycis	SoC	SoC	.	.	.	S3	G4
Astragalus puniceus var. gertrudis	SoC	SoC	.	.	.	S3?	G4T3?Q
Astragalus ripleyi	SoC	SoC	Sen	Sen	.	S3?	G3?
Astragalus siliceus	SoC	SoC	.	.	.	S3	G3
Astragalus wittmannii	SoC	SoC	Sen	.	.	S3	G3
Atriplex griffithsii	SoC	SoC	.	.	.	S2	G2G3
Brickellia chenopodina	SoC	SoC	.	.	.	SH	GHQ
Calochortus gunnisonii var. perpulcher	SoC	SoC	Sen	.	.	S4?	G5T4?
Carex ultra (Not NMRPTC Rare)	SoC	.	Sen	.	.	S3?	G3?
Castilleja organorum	SoC	SoC	.	.	.	S3	G3Q
Castilleja ornata	SoC	SoC	.	.	.	S1	G3?
Chaetopappa hersheyi	SoC	SoC	.	.	.	S3	G3
Cirsium gilense	SoC	SoC	Sen	.	.	S2	G3G5Q
Cirsium inornatum	SoC	SoC	.	.	.	S4	G4
Cirsium vinaceum	T	E	T	.	.	S2	G2
Cirsium wrightii	Can	E	Sen	.	.	S2	G1G2
Coryphantha scheeri var. scheeri	SoC	E	.	.	.	S2?	G4T3?
Crataegus wootoniana	SoC	SoC	Sen	.	.	S2	G2
Cuscuta warneri	SoC	SoC	.	.	.	SNR	GH
Cymopterus davidsonii	SoC	SoC	Sen	.	.	S2	G2
Cymopterus spellenbergii	SoC	SoC	.	.	.	SNR	GNR
Cypripedium parviflorum var. pubescens (Not NMRPTC Rare)	SoC	E	Sen	.	Gp 4	S2?	G5T5
Dalea scariosa	SoC	SoC	.	.	.	S4	G4
Delphinium alpestre	SoC	SoC	Sen	.	.	S2?	G2
Delphinium novomexicanum	SoC	SoC	.	.	.	S2	G2
Delphinium robustum	SoC	SoC	Sen	.	.	SNR	G2?
Delphinium sapellonis	SoC	SoC	.	.	.	S4?	G4?
Desmodium metcalfei	SoC	SoC	Sen	.	.	S3?	G3G4
Draba heilii	SoC	SoC	Sen	.	.	SNR	GNR
Draba mogollonica	SoC	SoC	.	.	.	S3	G3
Draba smithii	SOC	SOC	Sen	.	.	S1	G2
Draba standleyi	SoC	SoC	.	.	.	S2	G2G3
Echinocereus fendleri var. kuenzleri	E	E	E	E	.	S1	G4G5T1
Ericameria nauseosa var. texensis	SoC	SoC	Sen	.	.	S2	G5T2
Erigeron acomanus	SoC	SoC	.	Sen	Gp 3	S1S2	G1G2
Erigeron hessii	SoC	E	Sen	.	.	S1	G1
Erigeron rhizomatus	T	E	T	T	Gp 2	S2	G2
Erigeron rybius	SoC	SoC	.	.	.	S3	G3
Erigeron scopulinus	SoC	SoC	.	.	.	S3?	G3?
Erigeron sivinskii	SoC	SoC	Sen	.	Gp 4	S2	G2
Erigeron subglaber	SoC	SoC	Sen	.	.	S3	G3
Eriogonum aliquantum	SoC	SoC	.	.	.	S3	G3
Eriogonum gypsophilum	T	E	.	T	.	S1	G1
Eriogonum lachnogynum var. colobum	SoC	SoC	.	.	.	SNR	GNR
Eriogonum lachnogynum var. sarahiae	SoC	SoC	.	.	Gp 4	SNR	GNR
Eriogonum wootonii	SoC	SoC	.	.	.	S2	G5T2
Escobaria duncanii	SoC	E	.	Sen	.	S1	G1G2
Escobaria guadalupensis	SoC	SoC	.	.	.	SR	G1
Escobaria orcuttii	SoC	SoC	.	.	.	S3	G3?
Escobaria organensis	SoC	E	.	.	.	S2	G2
Escobaria sandbergii	SoC	SoC	.	.	.	S2	G2
Escobaria sneedii var. leei	T	E	.	T	.	S2?	G2T2
Escobaria sneedii var. sneedii	E	E	.	E	.	S2	G2T2
Escobaria villardii	SoC	E	Sen	Sen	.	S2	G2
Geranium dodecatheoides	SoC	SoC	Sen	.	.	SNR	GNR
Grindelia arizonica var. neomexicana	SoC	SoC	.	.	.	SR	G4T3?
Hackelia hirsuta	SoC	SoC	.	.	.	SNR	G4?
Hedeoma apiculata	SoC	SoC	.	.	.	S3	G3
Hedeoma pulcherrima	SoC	SoC	.	.	.	S2	G2
Hedeoma todsenii	E	E	E	E	.	S2	G2
Helianthus arizonensis	SoC	SoC	Sen	.	.	S4?	G4?
Helianthus paradoxus	T	E	.	T	.	S2	G2
Helianthus praetermissus	SoC	SoC	.	.	.	SH	GHQ
Heuchera pulchella	SoC	SoC	Sen	.	.	S2	G2
Heuchera woodsiaphila	SoC	SoC	Sen	.	.	S1	G1
Heuchera wootonii	SoC	SoC	.	.	.	S3	G3Q
Hexalectris arizonica	SoC	E	Sen	.	.	SNR	G5T2T4
Hexalectris nitida	SoC	E	.	.	.	S1	G3
Hexalectris revoluta	SOC	SOC	Sen	.	.	SNR	G1G2
Hexalectris spicata var. spicata (Not NMRPTC Rare)	SOC	E	.	.	.	SNR	G5T4T5
Hieracium brevipilum	SoC	SoC	Sen	.	.	S2?	G4T2?
Hymenoxys ambigens var. neomexicana	SoC	SoC	Sen	.	.	S2?	G3?T2?
Hymenoxys brachyactis	SoC	SoC	Sen	.	.	S3	G3
Hymenoxys vaseyi	SoC	SoC	.	.	.	S2?	G2?
Ionactis elegans	SoC	SoC	Sen	.	.	S2	G2
Ipomopsis sancti-spiritus	E	E	E	.	.	S1	G1
Justicia wrightii	SoC	SoC	.	.	.	S1	G2
Lepidospartum burgessii	SoC	E	.	Sen	.	S1	G2
Lilium philadelphicum (Not NMRPTC Rare)	SoC	E	Sen	.	.	S3?	G5
Limosella pubiflora	SoC	SoC	Sen	.	.	SH	GUGHQ
Linum allredii	SOC	SOC	.	Sen	.	SNR	GNR
Lorandersonia microcephala	SoC	SoC	Sen	.	.	S2	G2
Lupinus sierrae-blancae	SoC	SoC	.	.	.	S3	G3
Mammillaria wrightii var. wilcoxii (Not NMRPTC Rare)	SoC	E	.	.	.	S2	G4T4
Mentzelia conspicua	SoC	SoC	Sen	.	.	S2	G2
Mentzelia humilis var. guadalupensis	SoC	SoC	.	Sen	.	S2	G4T2
Mentzelia springeri	SoC	SoC	Sen	.	.	SNR	GNR
Mentzelia todiltoensis	SoC	SoC	.	.	.	SNR	GNR
Microthelys rubrocallosa	SoC	SoC	Sen	.	.	SNR	GNR
Muhlenbergia arsenei	SoC	SoC	.	.	.	SNR	G5
Muhlenbergia villiflora var. villosa	SoC	SoC	.	.	.	SNR	G5T2
Nama xylopodum	SoC	SoC	.	.	.	S4?	G4?
Oenothera organensis	SoC	SoC	.	.	.	S2	G2
Opuntia arenaria	SoC	E	.	Sen	.	S2	G2
Opuntia viridiflora	SoC	E	.	Sen	.	S1	G1Q
Packera cardamine	SoC	SoC	Sen	.	.	S3	G3
Packera spellenbergii	SoC	SoC	Sen	.	.	S2	G2?
Panicum mohavense	SoC	SoC	.	.	.	S1	G1
Pediocactus knowltonii	E	E	.	E	.	S1	G1
Pediomelum pentaphyllum	SoC	E	Sen	Sen	.	S1	G1
Peniocereus greggii var. greggii	SoC	E	.	Sen	.	S1	G3G4T2
Penstemon alamosensis	SoC	SoC	Sen	Sen	.	S3	G3
Penstemon cardinalis ssp. cardinalis	SoC	SoC	Sen	.	.	S2	G3T2
Penstemon cardinalis ssp. regalis	SoC	SoC	Sen	Sen	.	S2	G3T2
Penstemon linarioides ssp. maguirei	SoC	SoC	Sen	.	.	SH	G5T1
Penstemon metcalfei	SoC	SoC	Sen	.	.	SNR	G1G3
Penstemon neomexicanus	SoC	SoC	.	.	.	S4	G4
Penstemon pseudoparvus	SoC	SoC	Sen	.	.	S3?	G3?Q
Peritoma multicaulis	SoC	E	.	.	.	SH	G2G3
Perityle cernua	SoC	SoC	.	Sen	.	S2	G2
Perityle quinqueflora	SoC	SoC	.	.	.	S3	G4
Perityle staurophylla var. homoflora	SoC	SoC	.	.	.	S2	G4T2
Perityle staurophylla var. staurophylla	SoC	SoC	.	.	.	SNR	G4T3T4
Phacelia cloudcroftensis	SoC	SoC	Sen	.	.	S1	G1
Phacelia serrata	SoC	SoC	.	.	.	S2	G2G3
Phacelia sivinskii	SoC	SoC	.	.	.	SNR	GNR
Phemeranthus humilis	SoC	SoC	Sen	.	.	S2	G2
Philadelphus microphyllus var. argyrocalyx	SoC	SoC	.	.	.	S3	G5T3
Phlox caryophylla	SoC	SoC	.	.	.	S2	G4
Phlox cluteana	SoC	SoC	.	.	.	SR	G2
Phlox vermejoensis	SoC	SoC	.	.	.	SNR	GNR
Physaria aurea	SoC	SoC	.	.	.	S2	G3
Physaria gooddingii	SoC	SoC	.	.	.	S3	G3?
Physaria lata	SoC	SoC	.	.	.	S1?	G1?Q
Physaria navajoensis	SoC	SoC	.	.	Gp 3	SNR	GNR
Physaria newberryi var. yesicola	SoC	SoC	.	.	.	SNR	G3G4T1T3
Physaria pruinosa	SoC	SoC	.	.	.	SNR	G2
Polygala rimulicola var. mescalerorum	SoC	E	.	.	.	S1	G3T1
Polygala rimulicola var. rimulicola	SoC	SoC	.	.	.	S2	G3T3
Potentilla sierrae-blancae	SoC	SoC	Sen	.	.	S2?	G2?
Proatriplex pleiantha	SoC	SoC	.	Sen	.	S3?	G3
Puccinellia parishii	SoC	E	Sen	Sen	Gp 4	S1	G2
Ribes mescalerium	SoC	SoC	.	.	.	S4?	G4?
Rubus aliceae	SoC	SoC	.	.	.	SH	GH
Rumex occidentalis var. tomentellus	SoC	SoC	.	.	.	SH	GH
Salix arizonica	SoC	SoC	Sen	.	.	S1	G2G3
Salvia summa	SoC	SoC	.	.	.	S3?	G3?
Sclerocactus cloverae ssp. brackii	SoC	E	.	Sen	Gp 4	S1	G3T1
Sclerocactus mesae-verdae	T	E	.	T	Gp 2	S2	G2
Scrophularia laevis	SoC	SoC	.	.	.	S2	G2
Scrophularia macrantha	SoC	SoC	Sen	Sen	.	S2	G2
Sedum integrifolium ssp. neomexicanum	SoC	SoC	Sen	.	.	S1	G5T1
Senecio cliffordii	SoC	SoC	.	.	.	SNR	GNR
Senecio sacramentanus	SoC	SoC	.	.	.	S3	G3
Sibara grisea	SoC	SoC	.	Sen	.	S3?	G3
Silene plankii	SoC	SoC	.	.	.	S2	G3
Silene thurberi	SoC	SoC	.	.	.	S3?	G4
Silene wrightii	SoC	SoC	.	.	.	S2	G3
Solidago capulinensis	SOC	SOC	.	.	.	SNR	GNR
Solidago wrightii var. guadalupensis	SOC	SOC	Sen	.	.	SNR	GNR
Sophora gypsophila var. guadalupensis	SoC	SoC	Sen	Sen	.	S1	G1T1
Sphaeralcea procera	SoC	SoC	.	.	.	SH	GHQ
Sphaeralcea wrightii	SoC	SoC	.	.	.	S3?	G4?
Spiranthes magnicamporum (Not NMRPTC Rare)	SoC	E	.	.	.	S3?	G4
Stellaria porsildii	SoC	SoC	Sen	.	.	S1	G1
Streptanthus sparsiflorus	SoC	SoC	Sen	Sen	.	S2	G2
Synthyris oblongifolia	SoC	SoC	Sen	.	.	S2	G2Q
Talinum brachypodum	SoC	SoC	.	.	.	SNR	GNR
Toumeya papyracantha (Not NMRPTC Rare)	SoC	.	.	Sen	.	S4	G4
Townsendia gypsophila	SoC	SoC	.	Sen	.	S2	G2
Trifolium longipes ssp. neurophyllum	SoC	SoC	Sen	.	.	S2	G2
Valeriana texana	SoC	SoC	.	.	.	S3	G3

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AGENCY STATUS DEFINITIONS

U.S. Fish and Wildlife Service (USFWS)

Endangered - A species in danger of extinction throughout all or a significant portion of its range.

Threatened - A species likely to become endangered within the foreseeable future throughout all or a significant portion of its range.

Candidate - A species for which the USFWS has sufficient information to propose that it be added to the list of endangered and threatened species, but the listing action has been precluded by other higher priority listing activities.

Species of Concern - A taxon for which further biological research and field study are needed to resolve their conservation status OR are considered sensitive, rare, or declining on lists maintained by Natural Heritage Programs, State wildlife agencies, other Federal agencies, or professional/academic scientific societies.

Source: Charlie McDonald, Regional Botanist, U.S. Forest Service, Southwestern Region

State of New Mexico

Endangered - The taxon is listed as threatened or endangered under the provisions of the Federal Endangered Species Act (16 U.S.C. Sections 1531 et seq.), or is considered proposed under the tenets of the act [10-29-85,]; or the taxon is a rare plant across its range within the state, and of such limited distribution and population size that unregulated taking could adversely impact it and jeopardize its survival in New Mexico. [10-29-85, 8-31-95]

Species of Concern - A New Mexico plant species, which should be protected from land use impacts when possible because it is a unique and limited component of the regional flora.

Sources: New Mexico Administrative Code, Title 19, Chapter 21 Part 2.8 (Criteria for inclusion of the endangered plant species list), and Robert Sivinski, State Botanist

U.S. Forest Service (USFS)

Endangered - Any species designated as endangered by the U.S. Fish and Wildlife Service that is known to occur on national forest lands in New Mexico.

Threatened - Any species designated as threatened by the U.S. Fish and Wildlife Service that is known to occur on national forest lands in New Mexico.

Sensitive - A species that is likely to occur or have habitat on National Forest Service System lands and that has been identified by the Regional Forester as of concern for reduction in population viability as evidenced by: significant current or predicted downward trends in population numbers or density, or; significant current or predicted downward trends in habitat capability that would reduce the species' distribution.

Source: Charlie McDonald, Regional Botanist, U.S. Forest Service, Southwestern Region

Bureau of Land Management (BLM)

Definition: BLM Special Status Species are those federally listed or proposed as threatened or endangered, and those designated as BLM Sensitive Species, which includes both Federal candidate species and federally delisted species within 5 years of delisting.

Designation of BLM Sensitive Species: State Directors shall designate species within their respective states as BLM sensitive using the following criteria. For species inhabiting multiple states, State Directors shall coordinate with one another in the designation of BLM Sensitive Species so that species status is consistent across the species' range on BLM-administered lands for which the BLM has the capability to significantly affect the conservation of the species through management, and either:
1) There is information that a species has recently undergone, is undergoing, or is predicted to undergo a downward trend such that the viability of the species or a distinct population segment of the species is at risk across all or a significant portion of the species' range, or
2) The species depends on ecological refugia or specialized or unique habitats on BLM-administered lands, and there is evidence that such areas are threatened with alteration such that the continued viability of the species in that area would be at risk.

Policy: BLM Sensitive Species will be managed consistent with species and habitat management objectives in land use and implementation plans to promote their conservation and to minimize the likelihood and need for listing under the Endangered Species Act.

Source: BLM Manual 6840, Special Status Species Management, December 2008. Summarized by Mike Howard, Botanist, BLM New Mexico State Office, December 2011.

Navajo Nation

GROUP 1: Those species or subspecies that no longer occur on the Navajo Nation.

GROUP 2 (G2) & GROUP 3 (G3): "Endangered"-- Any species or subspecies whose prospects of survival or recruitment within the Navajo Nation are in jeopardy or are likely within the foreseeable future to become so.

G2: A species or subspecies whose prospects of survival or recruitment are in jeopardy.

G3: A species or subspecies whose prospects of survival or recruitment are likely to be in jeopardy in the foreseeable future.

GROUP 4: Any species or subspecies for which the Navajo Nation Department of Fish and Wildlife (NNDFWL) does not currently have sufficient information to support their being listed in G2 or G3 but has reason to consider them. The NNDFWL will actively seek information on these species to determine if they warrant inclusion in a different group or removal from the list.

Source: Navajo Nation, Division of Natural Resources, Department of Fish and Wildlife, Navajo Endangered Species List (NESL), Resources Committee Resolution No. RCMA-31-01, March 2001. Provided by Daniela Roth.

Natural Heritage New Mexico

State Ranks
SX Presumed Extirpated - Element is believed to be extirpated from NM. Not located despite intensive searches of historical sites and other appropriate habitat, and virtually no likelihood that it will be rediscovered.
SH Possibly Extirpated (Historical) - Element occurred historically in NM, and there is some expectation that it may be rediscovered. Its presence may not have been verified in the past 20 years. An element would become SH without such a 20-year delay if the only known occurrences in NM were destroyed or if it had been extensively and unsuccessfully looked for.
S1 Critically Imperiled - Critically imperiled in NM because of extreme rarity or because of some factor(s) making it especially vulnerable to extirpation from New Mexico. Typically 5 or fewer occurrences or very few remaining individuals (<1,000).
S2 Imperiled - Imperiled in NM because of rarity or because of some factor(s) making it very vulnerable to extirpation from New Mexico. Typically 6 to 20 occurrences or few remaining individuals (1,000 to 3,000).
S3 Vulnerable - Vulnerable in NM either because rare and uncommon, or found only in a restricted range (even if abundant at some locations), or because of other factors making it vulnerable to extirpation. Typically 21 to 100 occurrences or between 3,000 and 10,000 individuals.
S4 Apparently Secure - Uncommon but not rare, and usually widespread in NM. Possible cause of long-term concern. Usually more than 100 occurrences and more than 10,000 individuals.
S5 Secure - Common, widespread, and abundant in NM. Essentially ineradicable under present conditions. Typically with considerably more than 100 occurrences and more than 10,000 individuals.
SNR Unranked - NM rank not yet assessed.
SU Unrankable - Currently unrankable due to lack of information or due to substantially conflicting information about status or trends.
S#S# Range Rank - A numeric range rank (e.g., S2S3) is used to indicate the range of uncertainty about the exact status of the element. Ranges cannot skip more than one rank (e.g., SU is used rather than S1S4).
HYB Hybrid - Element not ranked because it represents an interspecific hybrid, not a species.
SE - An exotic established in state; may be native elsewhere in North America; includes fish native to NM but introduced into watersheds where the species is non-native.
SE# Exotic Numeric - An exotic established in NM that has been assigned a numeric rank to indicate its status, as defined for S1 through S5.
SA Accidental - Accidental or casual in NM. In other words, infrequent and outside usual range. Includes species (usually birds or butterflies) recorded once or only a few times at a location. A few of these species may have bred on the one or two occasions they were recorded. Examples include European strays or western birds on the East Coast and vice-versa.
SZ Zero Occurrences - Present but lacking practical conservation concern in NM because there are no definable occurrences, although the taxon is native and appears regularly in the state. An SZ rank will generally be used for long distance migrants whose occurrences during their migrations have little or no conservation value for the migrant, as they are typically too irregular (in terms of repeated visitation to the same locations), transitory, and dispersed to be reliably identified, mapped, and protected. In other words, the migrant regularly passes through the state, but enduring, mappable Element Occurrences cannot be defined.
SP Potential - Potential that element occurs in the state but no extant or historic occurrences are accepted.
SR Reported - Element reported in NM but without a basis for either accepting or rejecting the report, or the report not yet reviewed locally.
SRD Dubious Report - Element reported in NM but the report is likely to be invalid.
SRF False Report - Element reported in NM but the report is known to be invalid.

Global Ranks

GX Presumed Extinct - Believed to be extinct throughout its range. Not located despite intensive searches of historical sites and other appropriate habitat, and virtually no likelihood that it will be rediscovered.
GH Possibly Extinct - Known from only historical occurrences, but may nevertheless still be extant; further searching needed.
G1 Critically Imperiled - Critically imperiled globally because of extreme rarity or because of some factor(s) making it especially vulnerable to extinction. Typically 5 or fewer occurrences or very few remaining individuals (<1,000) or acres (<2,000) or linear miles (<10).
G2 Imperiled - Imperiled globally because of rarity or because of some factor(s) making it very vulnerable to extinction or elimination. Typically 6 to 20 occurrences or few remaining individuals (1,000 to 3,000) or acres (2,000 to 10,000) or linear miles (10 to 50).
G3 Vulnerable - Vulnerable globally either because very rare and local throughout its range, found only in a restricted range (even if abundant at some locations), or because of other factors making it vulnerable to extinction or elimination. Typically 21 to 100 occurrences or between 3,000 and 10,000 individuals.
G4 Apparently Secure - Uncommon but not rare (although it may be rare in parts of its range, particularly on the periphery), and usually widespread. Apparently not vulnerable in most of its range, but possibly cause for long-term concern. Typically more than 100 occurrences and more than 10,000 individuals.
G5 Secure - Common, widespread, and abundant (although it may be rare in parts of its range, particularly on the periphery). Not vulnerable in most of its range. Typically with considerably more than 100 occurrences and more than 10,000 individuals.

Variant Global Ranks
G#G# Range Rank - A numeric range rank (e.g., G2G3) is used to indicate uncertainty about the exact status of a taxon.
GU Unrankable - Currently unrankable due to lack of information or due to substantially conflicting information about status or trends.
GNR Unranked - Global rank not yet assessed.
HYB Hybrid - Element not ranked because it represents an interspecific hybrid and not a species.

Global Rank Qualifiers
? Inexact Numeric Rank - Denotes inexact numeric rank (e.g. G3?).
Q Questionable taxonomy that may reduce conservation priority - Distinctiveness of this entity as a taxon at the current level is questionable.

Infraspecific Taxon Ranks
T# Infraspecific Taxon (trinomial) - The status of infraspecific taxa (subspecies or varieties) are indicated by a "T-rank" following the species' global rank. Rules for assigning T-ranks follow the same principles outlined above. For example, the global rank of a critically imperiled subspecies of an otherwise widespread and common species would be G5T1.

Source: New Mexico Natural Heritage Program Web Site viewed at: http://nmnhp.unm.edu/ranks_status/ranks_status.pdf Definitions of New Mexico Natural Heritage Program Ranks of Endangerment