Amphiachyris dracunculoides

Classification	Dicots
Family	Asteraceae
Family (Traditional)	Asteraceae
Genus	Amphiachyris
Species:	Amphiachyris dracunculoides (DC.) Nutt.
Common Name	Prairie Broomweed
Growth Habit	forb
Plant Notes	**
Characteristics	Armaments: No; Milky Sap: No; Photosynthetic: Yes; Stipules: No; Woody Herbaceous: Herbaceous; Natural Area Presence: GILES; Duration: Annual; General Ecology: Terrestrial; Growth Habit: forb; Moisture Requirements: Xeric; Moisture Requirements: Sub-xeric; Moisture Requirements: Dry-mesic; Region of Origin: North America; Reproductive Phenology: July; Reproductive Phenology: August; Reproductive Phenology: September; Reproductive Phenology: October; Reproductive Phenology: November; Leaf Arrangement: alternate; Leaf Complexity: simple; Leaf Dissection: 0; Leaf Fragrance: No; Leaf Persistance: Deciduous; Leaf Petiole Type: sessile; Leaf Type: broadleaf; Leaf Type: grass-like; Leaf Type: linear; Leaf Venation: one-veined; Leaflet Margins: entire; Leaflet Number: 0; Anther Type: Basifixed; Base Flower Color: Yellow; Carpel Number/Pistil: 1; Fruit Complexity: Simple; Fruit Dehiscence: No; Fruit Type: Cypsela; Fruit Wet/Dry: Dry; Hypanthium Present: No; Inflorescence Position: terminal; Inflorescence Types: corymb/cyme/umbel; Inflorescence Types: head; Ovary Position: Inferior; Overall Flower Symmetry: Actinomorphic; Overall Flower Symmetry: Zygomorphic; Ovules per Carpel: 1; Perianth Present: Yes; Petal Fusion: Yes; Petal Number: 5; Pistil Complexity: Simple; Pistil Number: 1; Placentation Type: Basal; Sepal Fusion: N/A; Sepal Number: N/A; Sexuality: monoclinous; Sporangium Arrangement: N/A; Stamen Number: 5; Tepal Number: N/A
C value	3
Status	Native; TN[SNR] KY[SNR] (State Rank); G4G5 (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.

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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 (3)

Synonym	Full Citation
Brachyris dracunculoides	Brachyris dracunculoides DC.
Gutierrezia dracunculoides	Gutierrezia dracunculoides (DC.) S.F.Blake
Xanthocephalum dracunculoides	Xanthocephalum dracunculoides (DC.) Shinners

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: Franklin (KY), Garrard (KY), Madison (KY), Mercer (KY), Nelson (KY), Warren (KY), Washington (KY), Cannon (TN), Davidson (TN), Dickson (TN), Giles (TN), Hamilton (TN), Madison (TN), Marshall (TN), Maury (TN), Montgomery (TN), Rutherford (TN), Smith (TN), Stewart (TN), Sumner (TN), Williamson (TN), Wilson (TN)

Herbaria represented by specimen data listed below: BEREA, TENN, MTSU, APSC, EKY, HTTU, UCHT

Range of years during which specimens were collected: 1950 - 2011

Accession No. (click for full details)	County	State	Coll. Date	Collector & Collection No.	Herbarium & Herbarium Name Used
MTSU021254	Cannon	Tennessee	23 Jul 2000	Kurt E. Blum	MTSU Amphiachyris dracunculoides
APSC0028240	Davidson	Tennessee			APSC Amphiachyris dracunculoides
TENN-V-0215362	Dickson	Tennessee			TENN Gutierrezia dracunculoides
APSC0090940	Franklin	Kentucky			APSC Amphiachyris dracunculoides
31234100725470	Garrard	Kentucky	30 Aug 2011	W.W. Overbeck 1441	EKY Amphiachyris dracunculoides
BEREA022808	Garrard	Kentucky			BEREA Amphiachyris dracunculoides
TENN-V-0215363	Giles	Tennessee			TENN Gutierrezia dracunculoides
HTTU003303	Hamilton	Tennessee			HTTU Gutierrezia dracunculoides
HTTU003304	Hamilton	Tennessee			HTTU Gutierrezia dracunculoides
31234100227642	Madison	Kentucky	24 Sep 1994	Gary W. Libby 418	EKY Gutierrezia dracunculoides

Amphiachyris dracunculoides

Related Links

Species Distribution Map

Ecoregions

Synonyms (3)

Specimens and Distribution

Plant Photos