Illinois Natural History Survey - University of Illinois

Helianthus salicifolius
Willow-leaved sunflower
Taxonomy

Synonyms: Helianthus orgyalis, Helianthus filiformis

Subspecific taxa:

Classification:

Other taxonomic & nomenclature sources: USDA Plants;  ITIS;  The Plant List;  IPNI

Species Distribution
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More about map & occurrence records

County Map Legend
Absent:
Not known from county
Medium confidence:
Medium or unknown confidence;
often old records or unverifiable observations
Medium-high confidence:
Often observations by expert botanists
High confidence:
Often vouchered herbarium records
Planted / introduced:
Native species introduced outside historic range,
or only in planted locations within county (e.g., restorations)
Historic / extirpated:
Only historic records for the species; likely extirpated
(Note that this category is not yet functional)

North American distribution maps for this species: FLNA;  USDA Plants;  BONAP;  BISON

Collections, Observations & Flowering by Month [?]

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M
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Collections & Observations by Decade [?]

Species Status

Status/Listing: No Information

Notes:This Ozarks species was introduced in Illinois and is now seemingly extirpated.

Origin: North America

Species Description

General: Dicot-herb, perennial

Roots: primary, adventitious, rhizomes

Shoots: alternate leaf arrangment; simple leaf type; entire, serrate leaf margin; Pinnate leaf venation; awl-shaped leaf shape

Inflorescence: panicle, head

Flowers: perfect; complete, regular, irregular; yellow, violet; epigynous ovary position

Fruit: achene

Physiology: autotrophic

Reproduction: sexual, vegetative

Ecology & Natural History

Habitat: Urban locality east of Morton Grove, Cook county, along roadsides, unglaciated prairie regions, and waste ground.

ILPIN Notes: Rodgers, C.E., T.E. Thompson, and G.J. Seiler. 1982. Sunflower species of the United States. National Sunflower Association, Bismark, N.D. 75 pp. This is a showy species with white stems and drooping leaves. Eventually this species forms dense beds from creeping rhizomes. Leaf venation may be pinnate or other. This also may be same as Helianthus orgyalis. Species was introduced from west of Illinois; one location in cook county. Disk florets are perfect and fertile; ray florets are sterile. Colony of approximately 500 plants was observed until destroyed by the building of commercial structures on the lot. Despite formation of dense beds, may be a good subject for open gardens. Offers increased oil content and insect resistance to commercial breeding, seeds for bread and coffee substitute.

Functional Relationships:

  • Pollinators: insect
  • Dispersal:
  • Mycorrhizae:
  • N2 fixation:

Human Relationships:

  • Edibility [?] :
  • Showy Flowers: high

Wildlife and Livestock Information:

  • Food Value:
  • Cover Value:

Coefficient of Conservatism (C-value) [?] :

  • Entire State:
  • Chicago Area:

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