Acer negundo

Wetland Assessment Procedure (WAP): Source - Southwest Florida Water Management District, Wetland Assessment Procedure Instruction Manual for Isolated Wetlands (March 2005).

• ANY - WAP critieria is not taken into consideration
• Yes - Show results with WAP designations
• No - Show results without WAP designations

Wetland Status, Department of Environmental Regulation (DEP): Source - Delineation of the Landward Extent of Wetlands and Surface Waters, Chapter 62-340, Florida Administrative Code. 1994.

Wetland Status (NWI): Source - National list of vascular plant species that occur in wetlands. US Fish & Wildlife Service Biological Report 88(24). National Wetlands Inventory, US Fish & Wildlife Service. 1988.

A positive (+) or negative (-) sign is used with the Facultative indicator category to more specifically define the regional frequency of occurrence in wetlands. The positive sign indicates a frequency toward the higher end of the category (more frequently found in wetlands), and a negative sign indicates a frequency toward the lower end of the category (less frequently found in wetlands).

Identifying species that appear as waifs or only periodically appear in the flora for a few seasons.

• Any - Persisting critieria is not taken into consideration
• Yes - Show results with a Persisting value of Y
• No - Show results without Persisting value of N

(Definitions from: American Heritage Science Dictionary)

Intro paragraph to be provided by New York.

This numeric rank provides the relative rarity for each species based on a scale from 1 (very rare) to 5 (common). These ranks carry no legal status.

• S1 - Typically 5 or fewer occurrences, very few remaining individuals, acres, or miles of stream, or some factor of its biology making it especially vulnerable in New York State.
• S2 - Typically 6 to 20 occurrences, few remaining individuals, acres, or miles of stream, or factors demonstr¬ably making it very vulnerable in New York State.
• S3 - Typically 21 to 100 occurrences, limited acreage, or miles of stream in New York State.
• S4 - Apparently secure in New York State.
• S5 - Demonstrably secure in New York State.
• SE - State exotic or non-native
• SH - Historically known from New York State, but not seen in the past 15 years.
• SNA - Species for which a rank is not applicable. This is mainly those species which are now excluded from flora for various reasons.
• SNR - Not yet ranked
• SX - Apparently extirpated from New York State.

Each species’ global rank is determined by NatureServe. These ranks carry no legal weight. The global rank reflects the species worldwide rarity.

• G1 - Critically imperiled globally because of extreme rarity (5 or fewer occurrences), or very few remaining acres, or miles of stream) or especially vulnerable to extinction because of some factor of its biology.
• G2 - Imperiled globally because of rarity (6 - 20 occurrences, or few remaining acres, or miles of stream) or very vulnerable to extinction throughout its range because of other factors.
• G3 - Imperiled globally because of rarity (6 - 20 occurrences, or few remaining acres, or miles of stream) or very vulnerable to extinction throughout its range because of other factors.
• G4 - Imperiled globally because of rarity (6 - 20 occurrences, or few remaining acres, or miles of stream) or very vulnerable to extinction throughout its range because of other factors.
• G5 - Demonstrably secure globally, though it may be quite rare in parts of its range, especially at the periphery.
• GH - Historically known, with the expectation that it might be rediscovered.
• GNA - Species for which a rank is not applicable. NatureServe does not typically rank hybrid species.
• GNR - Not yet ranked.
• GX - Species believed to be extinct.

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View a List of All Ecological Communities

Select the criterion by which you wish to search (Scientific name, Genus, Family, etc.) and enter that information into the provided field.

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For example, matching the full name exactly in a Scientific Name search for Piptochaetium avenacioides may be difficult, but strings of either tium aven or avenaci or m avenac or pipto will all result in very small lists of matches. The intended name can then be chosen from any of those lists. Usually, the last letter (or two) of a given genus, a space, and the first few correct letters of the specific epithet will provide a sufficiently short list containing the desired taxon.

A similar example in a Common Name search is Virginia snakeroot. Searching using "snake root" will yield no results due to the extra space, but searching "snake" will generate a short list of plants with the word "snake" in the common name. Furthermore, a search of "Virginia snake" or even "nia snak" yields one result: Virginia snakeroot.

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A voucher specimen is a pressed and thoroughly dried plant sample deposited in a herbarium, and is intended to be a permanent record supporting research purposes. A voucher may be a record of a plant's occurrence in a particular area, or a specific example of a plant used in a scientific investigation.

Proper vouchers display all the necessary attributes for complete identification of the plant, and are to be accompanied by accurate locality, habitat, collection time, and collector data.

Only plant populations vouchered by specimens deposited in Index Herbariorum http://sciweb.nybg.org/science2/IndexHerbariorum.asp recognized herbaria are represented on this map.