Natural Resources
Conservation Service

Ecological site QX197X01X506

Tuff or Rock Subsurface Forest

Last updated: 8/22/2026
Accessed: 10/04/2026

Home / esd CATALOG / MLRA 197X / ecological site QX197X01X506

USC

Metric

General information

Provisional. A provisional ecological site description has undergone quality control and quality assurance review. It contains a working state and transition model and enough information to identify the ecological site.

MLRA notes

Major Land Resource Area (MLRA): 197X–Volcanic Islands of American Samoa

This MLRA consists of the islands of Tutuila, Aunuu, Ofu, Olosega, and Tau. The islands have extremely steep, highly dissected mountains, small valleys, and a narrow coastal plain. More than half of the area has slopes of more than 70 percent. The highest elevations are 3,056 feet (931 meters) on Tau and 2,142 feet (653 meters) on Tutuila. The islands consist of Pleistocene-age, basic igneous rocks, mainly basalt with some andesite and trachyte (USDA-NRCS, 2006).

The climate is moist, warm, and humid. Average annual rainfall ranges from 125 inches (3,175 millimeters) to more than 250 inches (6,350 millimeters). Rainfall varies over short distances due to topography. The driest months are June through September; the wettest months are December through March. Average annual temperature is 81 degrees F (27 degrees C). Relative humidity is 73 to 90 percent throughout the year. Prevailing winds are easterly trade winds. Cyclones occasionally strike the area (USDA-NRCS, 2006).

Soils are Mollisols, Andisols, Entisols, Oxisols, and Histosols. Soil moisture regimes are udic or perudic; the soil temperature regime is isohyperthermic. Natural vegetation is mostly tropical hardwood forest (USDA-NRCS, 2006).

Classification relationships

This ecological site occurs within Major Land Resource Area (MLRA) 197 – Volcanic Islands of American Samoa.

Ecological site concept

This ecological site occurs on the islands of Tutuila, Aunuu, Ofu, Olosega, and Tau in American Samoa. It is on gently sloping to very steep (6 to 70 percent) mountainsides and uplands at elevations ranging from 0 to 1,500 feet (0 to 460 meters) elevation. Easiest access is on the eastern side of Tutuila and restricted elsewhere.

Soils are in the Oxisols order or Andic or Typic Hapludolls (Mollisols) subgroup. They formed in residuum, residuum with volcanic ash, or volcanic ash over a layer of highly weathered tuff. Soil temperature regimes are isohyperthermic; soil moisture regimes are udic. Average annual rainfall ranges from 150 to 230 inches (3,810 to 5,840 millimeters). Closest weather station average precipitation is 115 to 197 inches (2,920 to 5,000 milllimeters). Water runoff is medium to high. Effective rooting depths range from 22 to more than 60 inches (55 to more than 150 centimeters). Rock fragment content is low (USDA-SCS, 1984).

This forest type has high plant species diversity. The tree canopy grows up to 100 feet (30 meters) tall. Ground cover is moderate to dense; epiphytes and climbing plants are abundant (USDA-SCS, 1984; Whistler, 2002).

Associated sites

QX197X01X001	Coastal Marsh Coastal Marsh Ecological Site adjoins Tuff or Rock Subsurface Forest Ecological Site where uplands and mountain slopes descend to coastal depressions near sea level. Coastal Marsh Ecological Site ascends to 20 feet elevation and has very poorly drained soils, in contrast with Tuff or Rock Subsurface Forest Ecological Site, which occurs on slopes up to 1,500 feet elevation and has well drained soils.
QX197X01X501	Mangrove Swamp Mangrove Swamp Ecological Site adjoins Tuff or Rock Subsurface Forest Ecological Site where uplands and mountain slopes descend to partially-protected areas of the coast that are open to seawater. It ascends to 20 feet elevation and has very poorly drained soils, in contrast with Tuff or Rock Subsurface Forest Ecological Site, which occurs on slopes up to 1,500 feet in elevation and has well drained soils.
QX197X01X502	Sandy Littoral Forest Sandy Littoral Forest Ecological Site adjoins Tuff or Rock Subsurface Forest Ecological Site where uplands and mountain slopes descend to sandy coastlines. It ascends to 20 feet elevation, undergoes occasional, very brief to brief flooding by seawater, and has somewhat excessively to excessively drained soils. In contrast with Tuff or Rock Subsurface Forest Ecological Site, which occurs on mountain slopes up to 1,500 feet in elevation, undergoes no flooding, and has well drained soils.
QX197X01X509	Very Steep Forest Very Steep Forest Ecological Site adjoins Tuff or Rock Subsurface Forest Ecologial SIte in mountainous areas where very steep slopes border on less steep slopes. Very Steep Forest Ecological Site soils are Andisols and Andic Mollisols on slopes of 40 to 100 percent. Tuff or Rock Subsurface Forest Ecological Site consists of Andisols, Andic Mollisols, and Oxisols on slopes of 6 to 70 percent.

Table 1. Dominant plant species

Tree	(1) Syzygium (2) Dysoxylum
Shrub	Not specified
Herbaceous	(1) Angiopteris evecta (2) Lomagramma cordipinna

Legacy ID

F197XY506AS

Download full description

Physiographic features

This ecological site occurs on mountain slopes gentle to steep slopes (USDA-SCS, 1984).

Table 2. Representative physiographic features

Landforms	(1) Island > Mountain slope (2) Island > Mountainside
Runoff class	Medium to high
Flooding frequency	None
Ponding frequency	None
Elevation	0 – 1500 ft
Slope	6 – 70 %
Water table depth	60 in
Aspect	Aspect is not a significant factor

Table 3. Representative physiographic features (actual ranges)

Runoff class	Low to high
Flooding frequency	Not specified
Ponding frequency	Not specified
Elevation	0 ft
Slope	0 %
Water table depth	0 in

Climatic features

The area is characterized by abundant rain and warm, humid days and nights. Average annual precipitation in this ecological site ranges from 115 to 197 inches (2,920 to 5,000 millimeters). Mean annual air temperature is 79 to 80 degrees F (27 degrees C). The driest period is June through September (winter), and the wettest is December through March (summer), although heavy showers and long, rainy periods can occur in any month. June, July, and August are the coolest months, and January, February, and March are the warmest. Daytime temperatures typically reach the upper 80 degrees in summer and the middle 80 degrees F in winter, while nighttime temperatures are in the middle 70 degrees F in summer and low 70 degrees F in winter (USDA-SCS, 1984; USDI-FWS, 1982).

The prevailing winds throughout the year are the easterly trade winds. They tend to be more directly from the east in December through March and mostly from the east-southeast and southeast during the rest of the year. The trade winds are less prevalent in summer than in winter. About 25 to 30 thunderstorms occur in an average year, mainly during the rainy season. The area lies across the path of tropical disturbances, including cyclones, that come usually from the north, but occasionally from east or west (USDA-SCS, 1984; USDI-FWS, 1982).

Table 4 Representative climatic features

Frost-free period (characteristic range)	370 days
Freeze-free period (characteristic range)	370 days
Precipitation total (characteristic range)	120-200 in
Frost-free period (actual range)	370 days
Freeze-free period (actual range)	370 days
Precipitation total (actual range)	100-230 in
Frost-free period (average)	370 days
Freeze-free period (average)	370 days
Precipitation total (average)	170 in

Characteristic range

Actual range

Bar

Line

Figure 1. Monthly precipitation range

Characteristic range

Actual range

Bar

Line

Figure 2. Monthly minimum temperature range

Characteristic range

Actual range

Bar

Line

Figure 3. Monthly maximum temperature range

Bar

Line

Figure 4. Monthly average minimum and maximum temperature

Figure 5. Annual precipitation pattern

Figure 6 Annual average temperature pattern

Climate stations used

(1) PAGO PAGO WSO AP [AQW00061705], AS

Soil features

Soils are in the Oxisols order or are Andic Hapludolls (Mollisols with andic characteristics) subgroup. They formed in residuum, residuum with volcanic ash, or volcanic ash over a layer of rock or hard, weathered tuff. Soil temperature regimes are isohyperthermic; soil moisture regimes are udic. They are moderately deep to deep and well drained (USDA-SCS, 1984). Soil components correlated to this ecological site are Fagasa (2, 3, 15), Ofu (3, 14, 15), Ofu variant (16, 17, 18), and Sogi variant (31).

Table 5. Representative soil features

Parent material	(1) Volcanic ash – igneous rock (2) Residuum – igneous rock (3) Residuum – tuff
Surface texture	(1) Silty clay
Family particle size	(1) Fine
Drainage class	Well drained
Permeability class	Moderately rapid
Depth to restrictive layer	22 – 72 in
Soil depth	22 – 72 in
Surface fragment cover <=3"	0 – 15 %
Surface fragment cover >3"	0 – 5 %
Available water capacity (0-40in)	3 – 6 in
Calcium carbonate equivalent (0-40in)	Not specified
Electrical conductivity (0-40in)	Not specified
Sodium adsorption ratio (0-40in)	0 – 1
Soil reaction (1:1 water) (0-40in)	5.6 – 7.3
Subsurface fragment volume <=3" (0-40in)	0 – 12 %
Subsurface fragment volume >3" (0-40in)	0 – 6 %

Ecological dynamics

The main natural disturbances are landslides and strong storms that can damage or kill vegetation by high wind speeds. The main human disturbance is burning or clearing of native vegetation that results in at least temporary dominance of introduced weedy plants (Forestry Program, Division of Community and Natural Resources, 2010; Sene, 2020; Webb and Fa`aumu, 1999; Whistler, 2002).

Many species specific names are not in USDA Plants Database, but can be found in the listed references and other sources online, like Plants of the World Online from the Kew Royal Botanic Gardens or iNaturalist. Many common names in the State and Transition model are locally known names.

State and transition model

Custom diagram

Standard diagram

Figure 7. State and Transition Model (STM) for Tuff or Rock Subsurface Forest.

More interactive model formats are also available. View Interactive Models

More interactive model formats are also available. View Interactive Models
Click on state and transition labels to scroll to the respective text

Ecosystem states

1. Reference State

2. Cleared and Abandoned

3. Invaded Forest

T1A	-	Clear, till, and abandon with a nearby weed source.
T1B	-	Frequent wind damage and nearby weed source.
R2A	-	Abandonment with weed control and native species planting.
T2A	-	State 2 Cleared and Abandoned transitions to State 3 Invaded Forest by growth of an overstory of trees with an understory of shade-tolerant shrubs, vines, ferns, forbs, and grasses. The species mix is variable but may be mostly introduced species or a combination of native and introduced species.
R3A	-	Weed control and replanting native species.
R3B	-	Weed control and replanting native species.

State 1 submodel, plant communities

1.1. Asi – Mamala/Oriental Vessel Fern – Lomagramma

1.2. Tavai – Afa

1.1A	-	Severe wind damage or other canopy opening disturbances.
1.2A	-	Adequate time to recover after disturbance.

State 2 submodel, plant communities

2.1. Lantana – Honolulu Rose/Fua Lele/Mile-A-Minute Vine

State 3 submodel, plant communities

3.1. Asi – African Tuliptree/Koster’s Curse/Mile-A-Minute Vine/Running Mountaingrass

State 1
Reference State

This ecological site is forested with a highly diverse, very tall (80 to 100 feet or 25 to 30 meters) tree canopy. Ground cover is moderately dense to dense. Epiphytes and lianas are abundant (Forestry Program, Division of Community and Natural Resources, 2010; Sene, 2020; Webb and Fa`aumu, 1999; Whistler, 2002).

Dominant plant species

syzygium (Syzygium), tree
(Dysoxylum), tree
(Rhus taitensis), tree
(Neonauclea), tree
Oriental vessel fern (Angiopteris evecta), other herbaceous
(Lomagramma cordipinna), other herbaceous

Community 1.1
Asi – Mamala/Oriental Vessel Fern – Lomagramma

Dominant tree species are syzygium or asi (Syzygium inophylloides), mamala (Homalanthus nutans), atone (Myristica inutilis), maali (Canarium samoense or vitiense), afa (Neonauclea forsteri), mamalava (Planchonella samoensis or torricellensis), and moso oi or ilang-ilang (Cananga odorata) (Forestry Program, Division of Community and Natural Resources, 2010; Green et al., 2015; Sene, 2020; Webb and Fa`aumu, 1999; Whistler, 2002; Whistler, 1994; Whistler, 1992).

Nontree species include the native Oriental vessel fer (Angiopteris evecta) and creeping and climbing fern lomagramma (Lomagramma cordipinna). Other ferns are Hawai'i birdnest fern (Asplenium nidus), sickle speenwort (Asplenium polyodon), and cutleaf halberd fern (Tectaria dissecta). There are many orchid species (Forestry Program, Division of Community and Natural Resources, 2010; Green et al., 2015; Sene, 2020; Webb and Fa`aumu, 1999; Whistler, 2002; Whistler, 1994; Whistler, 1992).

Dominant plant species

syzygium (Syzygium), tree
(Dysoxylum), tree
Oriental vessel fern (Angiopteris evecta), other herbaceous
(Lomagramma cordipinna), other herbaceous

Community 1.2
Tavai – Afa

The same tree species as in Community Phase 1.1 remain in this phase, but other native tree species, commonly tavai (Rhus taitensis) and afa (Neonauclea forsteri) can join the canopy as the forest regrows. Ground vegetation becomes temporarily more abundant. Epiphytes are less common than in 1.1 (Forestry Program, Division of Community and Natural Resources, 2010; Green et al., 2015; Sene, 2020; Webb and Fa`aumu, 1999; Whistler, 2002; Whistler, 1994; Whistler, 1992).

Dominant plant species

(Rhus taitensis), tree
(Neonauclea forsteri), tree

Pathway 1.1A
Community 1.1 to 1.2

Landslides or storms that damage or kill trees causes a phase change from 1.1 to 1.2 typified by a partial, temporary change in dominant tree species and a temporary increase in ground level vegetation.

Pathway 1.2A
Community 1.2 to 1.1

This community phase will revert to phase 1.1 with gradual regrowth of native species when given adequate time to recover after disturbance.

State 2
Cleared and Abandoned

This state consists of one community phase dominated by a variable mixture of shrubs, vines, forbs, and grasses that thrive in sunny environments.

Dominant plant species

lantana (Lantana camara), tree
stickbush (Clerodendrum chinense), tree
redflower ragleaf (Crassocephalum crepidioides), other herbaceous
mile-a-minute (Mikania micrantha), other herbaceous

Community 2.1
Lantana – Honolulu Rose/Fua Lele/Mile-A-Minute Vine

This community phase consists of a variable array of shrubs, forbs, vines, and young trees that thrive in sunny environments. Shrubs such as lantana (Lantana camara), stickbush or Honolulu rose (Clerodendrum chinense), comb bushmint (Hyptis pectinata), diamond burbark or mautofu (Triumfetta rhomboidea), and nettleleaf velvetberry (Stachytarpheta urticifolia) are dominant. The shrub layer may also include seedlings and saplings of any native trees that may have persisted on or near the site or invasive, introduced tree species such as African tuliptree (Spathodea campanulata), red beadtree (Adenanthera pavonina), and tamaligi or peacocksplume (Falcataria moluccana). Mile-a-minute vine (Mikania micrantha) and the large, introduced forb reflower ragleaf or fua lele (Crassocephalum crepidioides) may be present (Forestry Program, Division of Community and Natural Resources, 2010; Green et al., 2015; Sene, 2020; Space and Flynn, 2000; Webb and Fa`aumu, 1999; Whistler, 2002; Whistler, 1994; Whistler, 1992).

Dominant plant species

lantana (Lantana camara), shrub
stickbush (Clerodendrum chinense), shrub
redflower ragleaf (Crassocephalum crepidioides), other herbaceous
mile-a-minute (Mikania micrantha), other herbaceous

State 3
Invaded Forest

This state consists of one community phase. It is forested with both overstory and understory composed of a variable mix of native and introduced species. The actual species composition on a given site depends on the original native species composition, the disturbance history, and the species composition existing near the site before, during, and after disturbances (Forestry Program, Division of Community and Natural Resources, 2010; Green et al., 2015; Sene, 2020; Space and Flynn, 2000; Webb and Fa`aumu, 1999; Whistler, 2002; Whistler, 1994; Whistler, 1992).

Dominant plant species

syzygium (Syzygium), tree
African tuliptree (Spathodea campanulata), tree
soapbush (Clidemia hirta), shrub
running mountaingrass (Oplismenus compositus), grass
mile-a-minute (Mikania micrantha), other herbaceous

Community 3.1
Asi – African Tuliptree/Koster’s Curse/Mile-A-Minute Vine/Running Mountaingrass

The overstory consists of large trees. Any of the native species listed for State 1 Reference may be present. Introduced tree species are likely to be present; common examples of these are African tuliptree (Spathodea campanulata), tamaligi or peacocksplume (Falcataria moluccana), and red beadtree (Adenanthera pavonina) (Forestry Program, Division of Community and Natural Resources, 2010; Green et al., 2015; Sene, 2020; Space and Flynn, 2000; Webb and Fa`aumu, 1999; Whistler, 2002; Whistler, 1994; Whistler, 1992).

The understory consists of an unpredictable mixture of native and introduced shrubs, ferns, vines, forbs, and grasses that have some shade tolerance. See State 1 Reference for examples of native species. Common examples of introduced understory species are the shrubs soapbush or Koster’s curse (Clidemia hirta) and stickbush or Honolulu rose (Clerodendrum chinense), mile-a-minute vine (Mikania micrantha), and running mountaingrass (Oplismenus compositus) (Forestry Program, Division of Community and Natural Resources, 2010; Green et al., 2015; Sene, 2020; Space and Flynn, 2000; Webb and Fa`aumu, 1999; Whistler, 2002; Whistler, 1994; Whistler, 1992).

Dominant plant species

syzygium (Syzygium), tree
African tuliptree (Spathodea campanulata), tree
soapbush (Clidemia hirta), shrub
running mountaingrass (Oplismenus compositus), grass
mile-a-minute (Mikania micrantha), other herbaceous

Transition T1A
State 1 to 2

The Reference State (1) transitions to the Cleared and Abandoned State (2) by removal of native vegetation and allowing colonization by local species.

Transition T1B
State 1 to 3

The Reference State (1) transitions to the Invaded Forest State (3) by localized landslides or wind damage to the forest when there is a nearby source of seeds of invasive species or, more gradually, by damage to the forest understory by ungulates, especially feral pigs, when there is a source of seeds of invasive species.

Restoration pathway R2A
State 2 to 1

The Cleared and Abandoned State (2) may be restored to the Reference State (1). The intensity of active restoration measures will be determined by the presence or lack of nearby native forest or, at least, some native trees as well as the density and species mix of grasses, vines, shrubs, and invasive trees present on the site, especially if many competitive introduced species are present.

Transition T2A
State 2 to 3

The Cleared and Abandoned State (2) transitions to the Invaded Forest State (3) by growth of an overstory of trees with an understory of shade-tolerant shrubs, vines, ferns, forbs, and grasses. The species mix is variable but may be mostly introduced species or a combination of native and introduced species.

Context dependence.Abandonment without weed control.

Restoration pathway R3A
State 3 to 1

The Invaded Forest State (3) can be restored to the Reference State (1). The difficulty, cost, and likelihood of success will depend on the species composition and amount and competitiveness of introduced species present on a given site.

Restoration pathway R3B
State 3 to 2

The Invaded Forest State (3) can be restored to the Cleared and Abandoned State (2). After this “restoration,” the Cleared and Abandoned State (2) is likely to rapidly transition back to the Invaded Forest State (3) due to presence of an abundant tree seed bank in the soil.

Additional community tables

Table 6. Community 1.1 plant community composition

Group	Common name	Symbol	Scientific name	Annual production ()	Foliar cover (%)

Table 7. Community 1.2 plant community composition

Group	Common name	Symbol	Scientific name	Annual production ()	Foliar cover (%)

Table 8. Community 2.1 plant community composition

Group	Common name	Symbol	Scientific name	Annual production ()	Foliar cover (%)

Table 9. Community 3.1 plant community composition

Group	Common name	Symbol	Scientific name	Annual production ()	Foliar cover (%)

Supporting information

Inventory data references

NASIS soil component data.

Other references

Forestry Program, Division of Community and Natural Resources. (2010). American Samoa Forest Assessment and Resource Strategy. American Samoa Community College, Pago Pago, American Samoa.

Green, K., Kittel, G., Lopez, C., Ainsworth, A., Selvig, M., Vaivai, V., Akamine, K., Tukman, M., and Kudray, G. Vegetation. (2015). Vegetation Mapping Inventory Project, National Park of American Samoa. USDI-NPS Natural Resource Stewardship and Science. Fort Collins, Colorado.

Sene, D. M. (2020). Forest Action Plan. Forestry Program, American Samoa Community College, Pago Pago, American Samoa.

Space, J. C. and Flynn, T. (2000). Observations on invasive plant species in American Samoa. USDA Forest Service, Pacific Southwest Research Station, Honolulu. http://www.hear.org/pier/references/pierref000021.htm

USDA-NRCS. (2006). Major Land Resource Regions. USDA Agriculture Handbook 296. http://soils.usda.gov/MLRAExplorer

USDA-SCS. (1984). Soil Survey of Islands of American Samoa. Nakamura, S., Chavez, C. L., and Roybal, M. W., in cooperation with the Government of American Samoa.

USDI-FWS. (1982). Wildlife and Wildlife Habitat of American Samoa. II. Accounts of Flora and Fauna. R. Banks, editor. Washington DC.

Webb, E. L. and Fa`aumu, S. (1999). Diversity and structure of tropical rain forest of Tutuila, American Samoa: effects of site age and substrate. Plant Ecology 44: 257-274.

Whistler, W. A. (2002). The Samoan Rainforest. Isle Botanica, Honolulu.

Whistler, W. A. (1994). Botanical Inventory of the Proposed Tutuila and Ofu Units of the National Park of American Samoa. Technical Report 87. National Park Service. Honolulu.

Whistler, W. A. (1992). Botanical Inventory of the Proposed Ta`u Unit of the National Park of American Samoa. Technical Report 83. National Park Service. Honolulu.

Contributors

David Clausnitzer PhD
John Proctor
Ann Tan
Carolyn Auweloa
Daniel Bowman
Jennifer Fedenko
Amy Koch
Kendra Moseley
Sarah Quistberg
Jill Ficke-Beaton
Daniel Block
Brendan Brazee
Curtis Talbot

Approval

Jamin Johanson, 8/22/2026

Acknowledgments

Assistance, advice, review, and/or insights: Michael Constantinides, NRCS-PIA Jennifer Higashino, USFWS and NRCS Mike Kolman, NRCS

Rangeland health reference sheet

Interpreting Indicators of Rangeland Health is a qualitative assessment protocol used to determine ecosystem condition based on benchmark characteristics described in the Reference Sheet. A suite of 17 (or more) indicators are typically considered in an assessment. The ecological site(s) representative of an assessment location must be known prior to applying the protocol and must be verified based on soils and climate. Current plant community cannot be used to identify the ecological site.

Author(s)/participant(s)
Contact for lead author
Date	06/16/2026
Approved by
Approval date
Composition (Indicators 10 and 12) based on	Annual Production

Indicators

Number and extent of rills:
Presence of water flow patterns:
Number and height of erosional pedestals or terracettes:
Bare ground from Ecological Site Description or other studies (rock, litter, lichen, moss, plant canopy are not bare ground):
Number of gullies and erosion associated with gullies:
Extent of wind scoured, blowouts and/or depositional areas:
Amount of litter movement (describe size and distance expected to travel):
Soil surface (top few mm) resistance to erosion (stability values are averages - most sites will show a range of values):
Soil surface structure and SOM content (include type of structure and A-horizon color and thickness):
Effect of community phase composition (relative proportion of different functional groups) and spatial distribution on infiltration and runoff:
Presence and thickness of compaction layer (usually none; describe soil profile features which may be mistaken for compaction on this site):
Functional/Structural Groups (list in order of descending dominance by above-ground annual-production or live foliar cover using symbols: >>, >, = to indicate much greater than, greater than, and equal to):

Dominant:

Sub-dominant:

Other:

Additional:
Amount of plant mortality and decadence (include which functional groups are expected to show mortality or decadence):
Average percent litter cover (%) and depth ( in):
Expected annual annual-production (this is TOTAL above-ground annual-production, not just forage annual-production):
Potential invasive (including noxious) species (native and non-native). List species which BOTH characterize degraded states and have the potential to become a dominant or co-dominant species on the ecological site if their future establishment and growth is not actively controlled by management interventions. Species that become dominant for only one to several years (e.g., short-term response to drought or wildfire) are not invasive plants. Note that unlike other indicators, we are describing what is NOT expected in the reference state for the ecological site:
Perennial plant reproductive capability:

Download reference sheet

Natural ResourcesConservation Service

Ecological site QX197X01X506

Tuff or Rock Subsurface Forest

Last updated: 8/22/2026 Accessed: 10/04/2026

Search

General information

MLRA notes

Classification relationships

Ecological site concept

Associated sites

Table 1. Dominant plant species

Legacy ID

Natural Resources
Conservation Service

Last updated: 8/22/2026
Accessed: 10/04/2026