Managers: Arizona State University Vascular Plant Herbarium

Arizona is the third or fourth most floristically rich state in the US with perhaps as many as 3900 species of vascular plants. Over the last 60 years an average of ca. 12 new species records have been reported annually.

Managers: Desert Research Learning Center

These checklists are companion to the NRCS Technical Note, Pollinator Plants of the Desert Southwest: Native Milkweeds (Asclepias spp.). These checklists are living checklists and are a data management system for Asclepias (milkweed) species found in the seven states in the greater southwest. In: Nabhan, G., S. Buckley, and H. Dial. 2015.  Pollinator Plants of the Desert Southwest:  Native Milkweeds (Asclepias spp.).  USDA‐Natural Resources Conservation Service, Tucson Plant Materials Center, Tucson, AZ.  AZPMC Technical Note No. 16‐1.  

Managers: Borderlands Restoration L3C

Managers: Not defined

Managers: Andrew Hipp

Managers: Denver Botanic Gardens

Managers: Tina Ayers, Susan Holiday, Glenn Rink

Managers: Desert Research Learning Center

This provisional flora is part of an ongoing collaboration between the Desert Research Learning Center and the Coronado National Forest to better understand the flora of Southeastern Arizona and Southwestern New Mexico.

Managers: Tim Block, Cindy Skema

Managers: FWS Inventory and Monitoring, Desert Research Learning Center

This flora is a joint project of the US Fish and Wildlife Service's Region Two Inventory and Monitoring Program and the National Park Service's Southwest Network Collaborative.

Managers: José Luis León de la Luz

La peninsula de Baja California presenta un amplio rango de tipos de vegetación que incluye: chaparral costero, bosque de coníferas, matorral desértico bajo, y selva baja caducifolia. Se estima que la flora contiene mas de 4 mil taxa. Los herbarios mas reconocidos en la península de Baja California, albergan colecciones únicas de la flora de la región.

En Baja California Sur, el Herbario HCIB del Centro de Investigaciones Biológicas del Noroeste, en La Paz, ha estado documentando activamente la flora de la parte sur de la península y sus islas adyacentes. HCIB tiene muchas colecciones únicas que sólo se han depositado allí, especialmente para la flora de la región del Cabo que es muy diversa y que todavía no se conoce en su totalidad.

Managers: José Delgadillo Rodríguez

La peninsula de Baja California presenta un amplio rango de tipos de vegetación que incluye: chaparral costero, bosque de coníferas, matorral desértico bajo, y selva baja caducifolia. Se estima que la flora contiene mas de 4 mil taxa. Los herbarios mas reconocidos en la península de Baja California, albergan colecciones únicas de la flora de la región.

En el Estado de Baja California, el Herbario BCMEX de la Universidad Autónoma de Baja California en Ensenada, contiene muestras de toda la península, pero hace hincapié en la flora del estado norteño, Baja California y tiene muchas colecciones únicas, especialmente para la flora de la región de las montañas más altas, incluyendo la Sierra de San Pedro Mártir y Sierra Juárez.

Managers: Not defined

En este Estado predominan los matorrales desérticos que se encuentran distribuidos desde las llanuras y desiertos del noreste (dunas de Samalayuca). Le siguen los bosques de coníferas y encinos que se desarrollan en la Sierra Madre Occidental, además de los pastizales en las mesetas centrales. También existen áreas naturales protegidas de conservación de flora y fauna silvestre y de reserva forestal. La agricultura se practica en los valles y ocupa 8% de la superficie del estado.

La flora de Chihuahua supera los 4 mil 400 taxa y solo una pequeña colección de su flora se encuentra resguardada en el Herbario CHIH de la Universidad Autónoma de Chihuahua bajo la dirección del Maestro Gustavo Quintana.

Managers: María Socorro González Elizondo (Gimnospermas y Monocotiledóneas), Yolanda Herrera Arrieta (Poaceae), Martha González Elizondo (Cactaceae)

El 31% del territorio estatal, está constituido por bosques de coníferas y encinos en la zona serrana; le siguen en extensión los pastizales y matorrales y finalmente la selva tropical en la región de las quebradas ubicadas en el suroeste. Existen dos reservas de protección a la flora y fauna, una se encuentra en la Michilía y otra en el Bolsón de Mapimí, mejor conocida como la Zona del Silencio. La actividad agrícola ocupa el 10% de la superficie del estado.

La flora de durango contabiliza mas de 4 mil 450 taxa de plantas vasculares (1990) y, actualmente, la colección botánica del Herbario CIIDIR en la ciudad de Durango es la mas importante del Estado ya que alberga alrededor de 60 mil ejemplares.

Managers: Not defined

Managers: Rito Vega Aviña, Marcela Ruíz Guerrero

El estado de Sinaloa tiene una superfice de 58 mil 92 km cuadrados y se ubica en el noroeste de México. Se localiza en un zona geográfica poco estudiada florísticamente a pesar de contener una riqueza vegetal especial dada la confluencia de los reinos florísticos holárticos y neotropical. Su topografía varía de muy plana de 0-100 metros sobre el nivel del mar (msnm), hasta altamente montañosa de 300-2780 msnm.

Los tipos de vegetación que encontramos en Sinaloa son: bosque espinoso, bosque de coníferas, bosque de encinos y bosque mesófilo. A la fecha, los trabajos sobre su riqueza florística son incompletos, por lo tanto no existe un catálogo que de información precisa de la riqueza vegetal que contiene. Sin embargo, con base en las escasas publicaciones existentes sobre su flora, así como con revisiones de floras circunvecinas se estima la presencia de cerca de 3,000 especies de plantas vasculares, contenidas en cerca de 1,000 géneros y alrededor de 200 familias.

El principal acopio de la flora de Sinaloa se encuentra en Culiacán, en el Herbario González Ortega (UAS) de la Universidad Autónoma de Sinaloa, con una cantidad aproximada de 25,000 ejemplares; sin embargo, el Herbario del Centro de Investigación en Alimentación y Desarrollo, A.C. (HCIAD), aunque chico, cuenta con una colección muy importante de la flora de la Selva Tropical Seca del sur del Estado de Sinaloa.

Managers: Deam Herbarium

Managers: Intermountain Consortium

Most of the interactions to date have been in connection with our desire to make our specimen information available and usable via the internet. We are now looking at developing a more useful web site by encouraging qualified individuals to provide images, preferably vouchered images, of living plants to the Consortium's site - which would also make them available to other collections using the same server.

Managers: Brad Ruhfel

Managers: Las Cruces Field Office

This is a provisional flora of Las Cruces field office, New Mexico.

Managers: Sky Island Alliance

Sky Island Alliance's MABA project is a visionary initiative to catalog, protect, and restore one of the world's premier biodiversity hotspots. Over the next few years we will inventory the wildlands and wildlife of the Sonoran Sky Islands — a region of incredible biological wealth — while implementing community-based conservation, restoration and education activities that are key to the integrity of natural and human environments.

Managers: Ed Gilbert

Managers: John Hall, Tim Block, Cindy Skema

Managers: Midwest Herbaria Consortium

Managers: NPS

The collaborative on-line flora of National Park Service units.

Managers: NPS

The collaborative on-line flora of National Park Service units of the Pacific West Region.

Managers: Tim Block, Cindy Skema

Managers: Not defined

Managers: New York Botanical Garden

Managers: Tim Block, Cindy Skema

Managers: Katherine Mathews

Managers: Not defined

Managers: Not defined

Managers: Tim Block, Cindy Skema

Managers: Arizona Native Plant Society

PAPAZ began in 2008 as collaboration between the Arizona Native Plant Society, Grand Canyon Trust, Desert Botanical Garden, U.S. Forest Service, Northern Arizona University, and MNA. Arizona is incredibly diverse with its numerous landforms, varying elevations, temperature gradients, and rainfall patterns. These components create unique niches for plants, and many of these areas have not been documented. The goal of PAPAZ is to document the floristic diversity of Arizona by collecting plant specimens and providing more accurate and detailed geographic information. A majority of the contributions made to this project are accomplished by volunteers, also known as Budding Botanists, who take part in annual training to learn skills in plant identification, collecting, documenting, and processing. Over 125 volunteers have participated so far, assisting with every aspect of the project, from field collecting and conducting data entry, to processing plants at various herbaria. Volunteers at MNA have mounted over 1,000 plant specimens from PAPAZ. The herbarium processing occurs in the newly restored Powell Building’s Botany wing, located on the Museum’s Harold S. Colton Research Campus.

https://aznps.com/papaz-project/ 

Managers: Anna K Monfils; ShaunAnn Peters, Rachel A Hackett

The Prairie Fen Research Collaborative (https://www.researchgate.net/project/Prairie-Fen-Research-Collaborative) includes several Central Michigan University professors and studies and scientists at the Michigan Natural Features Inventory. The goal of the Prairie Fen Research Collaborative is to conduct research that addresses knowledge gaps hindering the conservation of prairie fen biodiversity and improve the efficacy of prairie fen research, monitoring, and management. By accruing knowledge and creating new tools, we help a variety of agencies and organizations working to conserve prairie fens for the benefit of unique species and people.

Managers: BLM-Safford, Desert Research Learning Center

This flora is a collaborative project of the BLM-Safford and the Desert Research Learning Center.

Managers: SERNEC

Managers: SERNEC

Managers: Madrean Archipelago Biodiversity Assessment Projects

Sky Island Alliance's MABA project is a visionary initiative to catalog, protect, and restore one of the world's premier biodiversity hotspots. Over the next few years we will inventory the wildlands and wildlife of the Sonoran Sky Islands — a region of incredible biological wealth — while implementing community-based conservation, restoration and education activities that are key to the integrity of natural and human environments. Warning: Species lists associated with individual sky islands are automatically generated, and are incomplete in many instances. Use these lists with caution.

Managers: Mark Dimmitt (Arizona Sonora Desert Museum)

The Arizona-Sonora Desert Museum interprets what it calls the Sonoran Desert Region, which we define as the Sonoran Desert plus all of its included and contiguous biotic communities. (All eight of the world's biomes are represented in our region.) Geographically, this flora includes all of Sonora and the Baja California Peninsula in Mexico (including the Gulf of California and its islands), Arizona roughly south of the Mogollon Rim, and California roughly south of Interstate 40. Pacific islands close to the Baja California coast (e.g., Cedros but not Guadalupe) are also included. The region technically includes most of Sinaloa, Mexico, but plants that have been recorded in this region only from Sinaloa are not included in the present flora. A few plants that have been recorded only in Chihuahua close to the Sonoran border are included.

Managers: Misc Managers

Managers: Mary E. Barkworth

These checklists are for states in the northern Great Plains: North and South Dakota, eastern Montana, Kansas, Missouri, Iowa, Nebraska

Managers: Not defined

Managers: Robert Madera

Managers: TORCH

Select rare plants and other plants susceptible to poaching

Managers: Robert Madera & US Forest Service Staff

Managers: Mary Barkworth

Managers: Mary Ann Feist

Managers: Not defined