Plant Index


 
 
 

Rudbeckia hirta

Rudbeckia hirta L.

black-eyed susan, brown-eyed susan

Rudbeckia hirta (Black-eyed Susan)
Image ID: 18656
Image by: Ware, Richard & Teresa
Image Collection: NCBG Digital Library

PLANT INDEX

ID_PLANT: RUHI2
SCIENTIFIC NAME: Rudbeckia hirta
Include in WOTAS: 1
Publish to Web: 1
Last Modified: 2019-03-15

GENUS INDEX

GENUS CODE: RUDBE
GENUS SCIENTIFIC: Rudbeckia
GENUS AUTHORITY: L.
GENUS COMMON: Coneflower
GENUS SUMMARY: A genus of about 15 species, herbs, of North America.
GENUS IDENTIFICATION: Identification notes: This treatment needs considerable additional work in the herbarium, and will likely be substantially modified.
GENUS REFERENCES: Urbatsch & Cox in FNA (2006c); Perdue (1957)=Z. Key adapted in part from SE and FNA.

FAMILY INDEX

FAMILY CODE: ASTERA
FAMILY SCIENTIFIC: Asteraceae
FAMILY AUTHORITY: Dumortier 1822 or COMPOSITAE Giseke 1792
FAMILY COMMON: Aster Family
FAMILY SUMMARY: A family of about 1500-1700 genera and 20,000-25,000 species, shrubs, herbs, trees, and vines, cosmopolitan in distribution.
FAMILY REFERENCE: Cronquist (1980)=SE throughout family treatment.

NCBG DESCRIPTIVES

INTRO: Erect to leaning biennial/short-lived perennial of dry woodlands, pastures and roadsides.
STEMS: Stems simple or with a few branches from near the base; covered with stiff, white hairs.
LEAVES: Leaves basal and alternate on stem, petiolate, oval or lance-shaped, 3-12 in. long, sometimes toothed, grayish-green and rough-hairy; stem leaves sessile, gradually reduced in size upward, narrowly lance-shaped.
INFLORESCENCE:
FLOWERS: Composite flowers (heads) solitary at ends of stem and branches, 1 1/2-4 1/2 in. wide, consisting of 8-16 dark yellow ray florets (3/4-2 in. long) encircling a domed center disk of tiny brownish-purple tubular florets.
FRUITS:
COMMENTS:
HEIGHT: 1-2 1/2 ft.

DURATION: Annual, Biennial, Perennial
HABIT: Herb

LEAF ARRANGEMENT: Alternate, Basal
LEAF COMPLEXITY: Simple
LEAF RETENTION:

FLORAL CHARACTERISTICS
SYMMETRY: Mixed
BLOOM TIME: May-Jul
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
x x x x x x x

BLOOM COLOR: Yellow
White Red Pink Orange Yellow Green Blue Lavender Purple Violet Brown Not Applicable
x

FRUITING PERIOD:

DISTRIBUTION
HABITAT TYPE: Disturbed, Dry forests, Woods margins
NATIVE RANGE: eastern United States

HORTICULTURAL
Plant Sale Text: This is the earliest of the native Black-eyed-Susan species to bloom. Its basal rosettes of fuzzy leaves are crowned by bright yellow flowers in early summer. Native Americans considered this plant an herb and used it for treating sores. The root of this native species can be used to produce a brown dye. Black-eyed-Susans are great for perennial borders, meadow gardens, or containers. If you wish, you can let them reseed so that you have more plants next year. Black-eyed-Susans make a good cut flower.

Bloom Table Text: This is the earliest of the native Black-eyed-Susan species to bloom. Its basal rosettes of fuzzy leaves are crowned by bright yellow flowers in early summer. Native Americans considered this plant an herb and used it for treating sores. The root of this native species can be used to produce a brown dye. Black-eyed-Susans are great for perennial borders, meadow gardens, or containers. If you wish, you can let them reseed so that you have more plants next year. Black-eyed-Susans make a good cut flower.

NCBG Location: Children's Wonder Garden, Education Center Landscape

Cultural Notes:

SOIL MOISTURE: Dry, Average
LIGHT EXPOSURE: Sun, Part Shade
MINIMUM HARDINESS ZONE: 3
MAXIMUM HARDINESS ZONE: 9
GERMINATION CODE:
WILDLIFE VALUE: Bee Friendly, Butterfly Friendly
DEER RESISTANCE:

GRIM ACCESSIONS

acc_id acc_num acc_dt coll_id Action
293 2011-0156 2011-06-30 298 View
2731 1987-0214 View
3534 1991-0189 View
6293 1995-1425 View
6727 1996-0383 View
9378 2021-0041 2021-04-05 0 View


GRIM COLLECTIONS

Coll_id Project Collection date Collector Action
298 HORT 2010-10-01 Walker View
1415 HORT 2006-07-25 Bryan View
1719 HORT 2005-01-01 Bryan View


GRIM PLANTINGS

plt_num acc_id loc_num pers_num inst_dt Action
684 293 48 NCBG staff 2011-06-28 View
685 293 38 Liloia 2011-05-16 View
686 293 43 Liloia 2011-05-16 View
687 293 30 Liloia 2011-05-16 View
688 293 42 Mixon 2012-04-25 View
689 293 34 NCBG staff 2012-04-25 View
4552 2731 8 NCBG staff 1978-10-27 View
5797 3534 51 NCBG staff 1990-08-07 View
8948 6293 2 NCBG staff 0000-00-00 View
9495 6727 142 NCBG staff 1967-12-31 View
9496 6727 27 NCBG staff 1986-12-31 View
9497 6727 27 NCBG staff 1986-12-31 View
9498 6727 81 NCBG staff 1986-12-31 View
9499 6727 143 NCBG staff 1986-12-31 View
9500 6727 8 NCBG staff 1996-03-28 View
12614 9378 228 Wait 2020-06-26 View
12615 9378 229 Wait 2020-06-26 View
12616 9378 232 Wait 2020-06-26 View
12617 9378 233 Wait 2020-06-26 View

USDA PLANTS DATABASE

USDA Symbol: RUHI2
USDA Common Name: Blackeyed Susan
Native Status: L48 (N), AK (I), CAN (N)
Distribution: USA (AK, AL, AR, CA, CO, CT, DC, DE, FL, GA, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NC, ND, NE, NH, NJ, NM, NY, OH, OK, OR, PA, RI, SC, SD, TN, TX, UT, VA, VT, WA, WI, WV, WY), CAN (AB, BC, MB, NB, NF, NS, ON, PE, QC, SK)
Duration: Annual, Biennial, Perennial
Growth Habit: Forb/herb

NATIONAL WETLAND INDICATOR STATUS

Region:AGCPAKAWCBEMPGPHIMWNCNEWMVE
Status: FACU FACU FACU FACU FACU FACU FACU

This information is derived from the U.S. Army Corps of Engineers 2016 National Wetland Plant List, Version 3.3 (Lichvar, R.W., D.L. Banks, W.N. Kirchner, and N.C. Melvin. 2016. The National Wetland Plant List: 2016 wetland ratings. Phytoneuron 2016-30: 1-17. Published 28 April 2016. ISSN 2153 733X). Regions: AGCP-Atlantic and Gulf Coastal Plain, AK-Alaska, AW-Arid West, CB-Caribbean, EMP-Eastern Mountains and Piedmont, GP-Great Plains, HI-Hawaii, MW-Midwest, NCNE-Northcentral and Northeast, WMCV-Western Mountains, Valleys & Coast

WEAKLEY FLORA

SCIENTIFIC NAME:
COMMON NAME:
SYNONYMY:
PHENOLOGY:
HABITAT:
COMMENTS:
RANGE MAP:

Key to Map Symbols
ABOUT FAMILY (Weakley Flora)
Asteraceae Dumortier 1822 or COMPOSITAE Giseke 1792 (Aster Family)
SUMMARY: A family of about 1500-1700 genera and 20,000-25,000 species, shrubs, herbs, trees, and vines, cosmopolitan in distribution.
REFERENCE: Cronquist (1980)=SE throughout family treatment.
ABOUT GENUS (Weakley Flora)
Rudbeckia L. (Coneflower)
SUMMARY: A genus of about 15 species, herbs, of North America.
REFERENCE: Urbatsch & Cox in FNA (2006c); Perdue (1957)=Z. Key adapted in part from SE and FNA.

HERBARIUM RESOURCES

SERNEC: Find Rudbeckia hirta in Southeast Regional Network of Experts and Collections (if available)
UNC SERNEC: Find Rudbeckia hirta in University of North Carolina Chapel Hill Herbarium - Southeast Regional Network of Experts and Collections (if available)

WEB RESOURCES

USDA: Find Rudbeckia hirta in USDA Plants
NPIN: Find Rudbeckia hirta in NPIN Database
FNA: Find Rudbeckia hirta in the Flora of North America (if available)
Google: Search Google for Rudbeckia hirta

NCBG IMAGE RECORDS

ID IMAGE1: 18656
ID IMAGE2: 0
ID IMAGE3: 18656

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26 photo(s) available in the Image Gallery

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