Plant Index


 
 
 

Helianthus atrorubens

Helianthus atrorubens L.

purpledisk sunflower, appalachian sunflower

Synonym(s): Helianthus atrorubens var. alsodes
Helianthus atrorubens (Purpledisk Sunflower)
Image ID: 14769
Image by: Sorrie, Bruce A.
Image Collection: NCBG Digital Library

PLANT INDEX

ID_PLANT: HEAT
SCIENTIFIC NAME: Helianthus atrorubens
Include in WOTAS: 1
Publish to Web: 1
Last Modified: 2019-01-23

GENUS INDEX

GENUS CODE: HELIA3
GENUS SCIENTIFIC: Helianthus
GENUS AUTHORITY: L.
GENUS COMMON: Sunflower
GENUS SUMMARY: A genus of about 50 species, herbs, of North America.
GENUS IDENTIFICATION:
GENUS REFERENCES: Schilling in FNA (2006c); Heiser et al. (1969); Cronquist (1980)=SE; Schilling et al. (1998). Key adapted from FNA, SE, RAB, and Heiser et al. (1969).

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, rhizomatous perennial found in dry soils of rocky, sandy or clayey woodlands, pine savannas and road banks.
STEMS: Stems simple to few-branched, rough-hairy near the base and with softer hairs toward the tip.
LEAVES: Leaves mostly basal or on lower stems, opposite, on broadly winged petioles, oval to diamond-shaped, 2-8 in. long, toothed or scalloped and rough; middle to upper stem leaves similar but fewer and smaller.
INFLORESCENCE:
FLOWERS: Composite flowers (heads) in small clusters; heads to 3 in. wide, consisting of 10-15 yellow ray florets encircling a center disk of dark purple tubular florets; overlapping oval or oblong bracts surround the base of each head.
FRUITS: Fruit a dark brown, sparsely bristled, narrowly oval achene.
COMMENTS:
HEIGHT: 2 1/2-6 1/2 ft.

DURATION: Perennial
HABIT: Herb

LEAF ARRANGEMENT: Opposite
LEAF COMPLEXITY: Simple
LEAF RETENTION:

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

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

FRUITING PERIOD:

DISTRIBUTION
HABITAT TYPE: Dry forests, Pine savannas
NATIVE RANGE: southeastern United States

HORTICULTURAL
Plant Sale Text: This Southeast native sunflower may not boast the large heads and seeds of more familiar cultivated sunflowers, but it is a tough perennial with a cheerful disposition. Commonly found in dry woodlands and growing on roadbanks, this plant is tolerant of dauntingly dry sandy, rocky, or clay soil conditions once established. This plant will be quite at home in a meadow garden or roadside planting and is also a nice plant for beds and borders. The seeds of sunflowers are a great food source for birds.

Bloom Table Text:

NCBG Location:

Cultural Notes:

SOIL MOISTURE: Dry, Average
LIGHT EXPOSURE: Sun, Part Shade, Shade
MINIMUM HARDINESS ZONE: 6
MAXIMUM HARDINESS ZONE: 9
GERMINATION CODE:
WILDLIFE VALUE: Bee Friendly, Butterfly Friendly, Bird Friendly
DEER RESISTANCE:

GRIM ACCESSIONS

acc_id acc_num acc_dt coll_id Action
290 2011-0151 2011-06-16 295 View
2454 1986-2295 View
4401 1992-0557 View
4755 1993-0032 View
9428 2021-0091 2021-06-29 View


GRIM COLLECTIONS

Coll_id Project Collection date Collector Action
295 HORT 2009-01-01 NCBG staff View
1317 HORT 2006-10-11 Bryan View
1699 HORT 2005-01-01 Heiney View
1806 HORT 2006-10-01 Bryan View
1830 HORT 2006-10-01 Bryan View
2066 NPMD 2020-10-22 Summer View
2098 NPMD 2020-10-22 Summer View
2283 NPMD 2019-10-14 Touloupas View
2286 NPMD 2019-10-14 Touloupas View
2369 NPMD 2019-11-21 Touloupas View


GRIM PLANTINGS

plt_num acc_id loc_num pers_num inst_dt Action
681 290 21 NCBG staff 2011-04-08 View
4165 2454 27 NCBG staff 1986-12-31 View
6729 4401 200 NCBG staff 1993-03-01 View
7097 4755 54 NCBG staff 1993-08-20 View
12741 9428 146 Wenck 2021-05-03 View

USDA PLANTS DATABASE

USDA Symbol: HEAT
USDA Common Name: Purpledisk Sunflower
Native Status: L48 (N)
Distribution: USA (AL, FL, GA, IL, KY, LA, MS, NC, NJ, SC, TN, VA)
Duration: Perennial
Growth Habit: Forb/herb

WEAKLEY FLORA

SCIENTIFIC NAME: Helianthus atrorubens
COMMON NAME: Appalachian Sunflower
SYNONYMY: [= C, FNA, K, RAB, SE, Va, W, WH3; > H. atrorubens var. alsodes Fernald - F; > H. atrorubens var. atrorubens - F; = H. atrorubens var. atrorubens - G; < H. atrorubens - S]
PHENOLOGY: Late Jul-Oct.
HABITAT: Dry soils of rocky, sandy, or clayey woodlands and roadbanks.
COMMENTS: N. VA west to w. TN, and south to c. GA, Panhandle FL, AL, and se. LA. Related to the Ozarkean H. silphioides Nuttall.
RANGE MAP: Helianthus atrorubens.png

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)
Helianthus L. (Sunflower)
SUMMARY: A genus of about 50 species, herbs, of North America.
REFERENCE: Schilling in FNA (2006c); Heiser et al. (1969); Cronquist (1980)=SE; Schilling et al. (1998). Key adapted from FNA, SE, RAB, and Heiser et al. (1969).

HERBARIUM RESOURCES

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

WEB RESOURCES

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

NCBG IMAGE RECORDS

ID IMAGE1: 14769
ID IMAGE2: 0
ID IMAGE3: 19350

From the Image Gallery


Image ID: 8610

Image ID: 8611

Image ID: 8612

Image ID: 14768

Image ID: 19350

Image ID: 19546
7 photo(s) available in the Image Gallery

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