Plant DetailShow Menu

Naked-stem Sunflower Helianthus occidentalis ssp. occidentalis

Other Common Name(s):

Previously known as:

  • Helianthus dowellianus
  • Helianthus occidentalis var. dowellianus
Phonetic Spelling
hee-lee-AN-thus ok-sih-den-TAY-liss ok-sih-den-TAY-liss
Description

Naked-stem Sunflower is a native wildflower found along rocky or sandy riparian areas.  Easy to identify in the wild by the rosette of stalked, basal leaves around the base of the plant and one to four pairs of small, widely spaced, stalkless leaves on the stem.  

Insects, Diseases, and Other Plant Problems:

More information on Helianthus.

See this plant in the following landscape:
Cultivars / Varieties:
Tags:
#wildlife plant#native perennial#NC native#native wildflower#larval host plant#food source fall#food source herbage#food source nectar#food source pollen#piedmont mountains UPL#native#food source hard mast fruit#butterfly friendly#FACU Coastal#pollinator garden#audubon#silvery checkerspot butterfly
 
Cultivars / Varieties:
Tags:
#wildlife plant#native perennial#NC native#native wildflower#larval host plant#food source fall#food source herbage#food source nectar#food source pollen#piedmont mountains UPL#native#food source hard mast fruit#butterfly friendly#FACU Coastal#pollinator garden#audubon#silvery checkerspot butterfly
  • Attributes:
    Genus:
    Helianthus
    Species:
    occidentalis
    Family:
    Asteraceae
    Life Cycle:
    Perennial
    Country Or Region Of Origin:
    Eastern U.S.A.
    Distribution:
    AR, DC, FL, GA, IA, IL, IN, KS, KY, MD, MI, MN, MO, NC, NJ, OH, PA, SC, TN, TX, VA, WI, WV
    Wildlife Value:
    Flowers provide nectar to pollinators from July until the first frost. This is a larval host plant that supports Silvery Checkerspot (Chlosyne nycteis). The Silvery Checkerspot has at least 1-2 broods in the north from June-July in the deep south and Texas, they have as many as 3-4 broods from May through September.
    Dimensions:
    Height: 2 ft. 0 in. - 5 ft. 0 in.
    Width: 3 ft. 0 in. - 6 ft. 0 in.
  • Whole Plant Traits:
    Plant Type:
    Herb
    Native Plant
    Perennial
    Wildflower
  • Cultural Conditions:
    Light:
    Full sun (6 or more hours of direct sunlight a day)
    Partial Shade (Direct sunlight only part of the day, 2-6 hours)
    Soil Drainage:
    Frequent Standing Water
    Moist
    Occasional Flooding
    Occasionally Wet
    NC Region:
    Mountains
  • Fruit:
    Display/Harvest Time:
    Fall
    Fruit Description:
    The fruit which displays from August to November is considered a cypsela, which is a dry, single-seeded fruit. The yellow center disk of each flower forms a head of dry seed.
  • Flowers:
    Flower Color:
    Gold/Yellow
    Flower Bloom Time:
    Fall
    Summer
    Flower Petals:
    7 - 20 petals/rays
    Flower Size:
    1-3 inches
    Flower Description:
    Blooms from July to October
  • Leaves:
    Leaf Feel:
    Rough
    Leaf Type:
    Simple
    Leaf Arrangement:
    Opposite
    Leaf Margin:
    Entire
    Hairs Present:
    No
    Leaf Length:
    3-6 inches
    Leaf Width:
    1-3 inches
    Leaf Description:
    Veined leaves.
  • Stem:
    Stem Color:
    Brown/Copper
    Red/Burgundy
    Stem Is Aromatic:
    No
  • Landscape:
    Landscape Location:
    Riparian
    Landscape Theme:
    Butterfly Garden
    Pollinator Garden
    Attracts:
    Butterflies
    Pollinators
    Small Mammals
    Songbirds