Sorbus americana

Classification	Dicots
Family	Rosaceae
Family (Traditional)	Rosaceae
Genus	Sorbus
Species:	Sorbus americana Marshall
Common Name	American Mountain Ash
Growth Habit	tree
Plant Notes	**
Characteristics	Armaments: No; Milky Sap: No; Photosynthetic: Yes; Stipules: Yes; Woody Herbaceous: Woody; Duration: Perennial; General Ecology: Terrestrial; Growth Habit: tree; Moisture Requirements: Sub-xeric; Moisture Requirements: Dry-mesic; Moisture Requirements: Mesic; Region of Origin: North America; Reproductive Phenology: June; Reproductive Phenology: July; Leaf Arrangement: alternate; Leaf Complexity: compound; Leaf Dissection: 1; Leaf Fragrance: No; Leaf Persistance: Deciduous; Leaf Petiole Type: petiolate; Leaf Type: broadleaf; Leaf Venation: pinnate; Leaflet Margins: serrate; Leaflet Margins: serrulate; Leaflet Number: 13; Leaflet Number: 15; Base Flower Color: White; Fruit Dehiscence: No; Fruit Type: Berry; Fruit Wet/Dry: Wet; Hypanthium Present: Yes; Overall Flower Symmetry: Actinomorphic; Perianth Present: Yes; Petal Fusion: No; Petal Number: 5; Pistil Number: 1; Sepal Fusion: No; Sepal Number: 5; Sexuality: monoclinous; Sporangium Arrangement: N/A; Stamen Number: 13+
C value	6
Status	Native; AGCP (FACU), EMP (FACU) (NWPL); TN[SNR] (State Rank); G5 (Global Rank)
Specimen(s)	View and Download Specimen Details »

** Not applicable or data not available.

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Species Distribution Map

This species has been reported in the counties highlighted in the interactive distribution map below. Click on a county to display the its name. Click the question mark icon () to view additional information about the ecoregions shown. In the map legend, there are links to toggle the visibility of the ecoregions and/or their labels. In addition, clicking on an ecoregion name will highlight that region on the map.

State Boundaries
Counties
Counties - Species Present

Ecoregions

Southeastern Plains
- Blackland Prarie
Blue Ridge Mountains
Ridge and Valley
Cumberland Plateau
Cumberland Mountains
Allegheny Plateau

Interior Plateau
- Bluegrass Region
- Nashville Basin
- Pennyroyal Karst Plain
- Western Highland Rim
- Eastern Highland Rim

Interior River Valleys and Hills
- Shawnee / Caseyville Hills
Mississippi Alluvial Plain
Mississippi Valley Loess Plains
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Synonyms

Synonym	Full Citation
Pyrus americana var. microcarpa	Pyrus americana var. microcarpa
Sorbus americanus	Sorbus americanus
Sorbus micrantha	Sorbus micrantha Dum. Cours.
Sorbus microcarpa	Sorbus microcarpa Pursh
Sorbus riparia	Sorbus riparia Raf.

Specimens and Distribution

This species has been reported in the following counties by the herbaria listed. An overview of the individual specimens are provided in the table that follows. Click on the accession number to view details; click on column headers to sort.

Counties included on distribution map: Carter (TN), Coffee (TN), Greene (TN), Johnson (TN), Monroe (TN), Rutherford (TN), Sevier (TN), Unicoi (TN)

Herbaria represented by specimen data listed below: APSC, ETSU, MTSU, TENN, UCHT

Range of years during which specimens were collected: 1964 - 2011

Accession No. (click for full details)	County	State	Coll. Date	Collector & Collection No.	Herbarium & Herbarium Name Used
ETSU007691	Greene	Tennessee	12 May 2009	Frosty Levy	ETSU Sorbus americana
TENN-V-0115623	Greene	Tennessee			TENN Sorbus americana
TENN-V-0115626	Johnson	Tennessee			TENN Sorbus americana
APSC0044462	Johnson	Tennessee			APSC Sorbus americana
MTSU008496	Coffee	Tennessee	20 Oct 1991	Chris Bumgarner	MTSU Sorbus americana
TENN-V-0115629	Unicoi	Tennessee			TENN Sorbus americana
UCHT014934	Monroe	Tennessee			UCHT Sorbus americana
ETSU035355	Carter	Tennessee			ETSU Sorbus americana
ETSU035361	Carter	Tennessee			ETSU Sorbus americana
TENN-V-0115630	Unicoi	Tennessee			TENN Sorbus americana
TENN-V-0115628	Unicoi	Tennessee			TENN Sorbus americana
TENN-V-0115624	Greene	Tennessee			TENN Sorbus americana
TENN-V-0115627	Monroe	Tennessee			TENN Sorbus americana
TENN-V-0115625	Greene	Tennessee			TENN Sorbus americana
ETSU007692	Greene	Tennessee	20 Jun 2009	Frosty Levy	ETSU Sorbus americana
APSC0056074	Unicoi	Tennessee			APSC Sorbus americana
MTSU008497	Rutherford	Tennessee	02 Nov 1999	Sara Little	MTSU Sorbus americana
ETSU035362	Carter	Tennessee			ETSU Sorbus americana
ETSU035359	Carter	Tennessee			ETSU Sorbus americana
ETSU035357	Carter	Tennessee			ETSU Sorbus americana
APSC0004558	Sevier	Tennessee	11 Sep 1964	Wayne Chester 397	APSC Sorbus americana
ETSU035356	Carter	Tennessee			ETSU Sorbus americana
ETSU007690	Greene	Tennessee	11 Sep 2011	Frosty Levy	ETSU Sorbus americana
TENN-V-0115622	Carter	Tennessee			TENN Sorbus americana

View a List of All Ecological Communities

Sorbus americana

Related Links

Species Distribution Map

Ecoregions

Synonyms

Specimens and Distribution

Plant Photos