Plantae > Tracheophyta > Magnoliopsida > Asterales > Asteraceae > Helianthus > Helianthus grosseserratus

Helianthus grosseserratus (sawtooth sunflower)

Synonyms:

Wikipedia Abstract

Helianthus grosseserratus, commonly known as sawtooth sunflower or thick-tooth sunflower, is a perennial sunflower in the family Asteraceae, with a large flowering head (inflorescence). The plant may reach 3–12 feet (91–366 cm) in height and is found along streams, damp prairies and roadsides in the eastern and central parts of Canada and the United States, primarily in the northern Great Plains and Great Lakes Region, with additional populations as far as Maine, Georgia, and Texas. It prefers full sun and moist, fertile loamy soil with high organic content.
View Wikipedia Record: Helianthus grosseserratus

Attributes

Allergen Potential [1]  Medium
Screening - Summer [2]  Moderate
Screening - Winter [2]  Porous
Bloom Period [2]  Late Summer
Drought Tolerance [2]  Medium
Fire Tolerance [2]  Medium
Frost Free Days [2]  90 days
Fruit/Seed Abundance [2]  High
Fruit/Seed Begin [2]  Summer
Fruit/Seed End [2]  Fall
Growth Form [2]  Rhizomatous
Growth Period [2]  Spring, Summer, Fall
Growth Rate [2]  Moderate
Leaf Type [2]  Deciduous
Lifespan [2]  Perennial
Propagation [2]  Bare Root, Container, Seed
Regrowth Rate [2]  Slow
Root Depth [2]  12 inches (30 cm)
Seed Spread Rate [2]  Slow
Seed Vigor [2]  High
Seeds Per [2]  629999 / lb (1388911 / kg)
Shape/Orientation [2]  Erect
Structure [3]  Herb
Vegetative Spread Rate [2]  Moderate
Flower Color [2]  Yellow
Foliage Color [2]  Dark Green
Fruit Color [2]  Brown
Fall Conspicuous [2]  Yes
Flower Conspicuous [2]  Yes
Height [2]  4.92 feet (1.5 m)
Hardiness Zone Minimum [2]  USDA Zone: 2 Low Temperature: -50 F° (-45.6 C°) → -40 F° (-40 C°)
Light Preference [2]  Full Sun
Soil Acidity [2]  Neutral
Soil Fertility [2]  Intermediate
Water Use [2]  Moderate

Protected Areas

Name IUCN Category Area acres Location Species Website Climate Land Use
Herbert Hoover National Historic Site   Iowa, United States
Indiana Dunes National Lakeshore II 8272 Indiana, United States
Upper Miss. River Nat'l Wildlife Refuge National Wildlife Refuge VI 25823 Illinois, Iowa, Wisconsin, United States

Providers

Citations

Attributes / relations provided by
1Derived from Allergy-Free Gardening OPALS™, Thomas Leo Ogren (2000)
2USDA Plants Database, U. S. Department of Agriculture
3Kattge, J. et al. (2011b) TRY - a global database of plant traits Global Change Biology 17:2905-2935
4Robertson, C. Flowers and insects lists of visitors of four hundred and fifty three flowers. 1929. The Science Press Printing Company Lancaster, PA.
5Jorrit H. Poelen, James D. Simons and Chris J. Mungall. (2014). Global Biotic Interactions: An open infrastructure to share and analyze species-interaction datasets. Ecological Informatics.
Abstract provided by DBpedia licensed under a Creative Commons License
Species taxanomy provided by GBIF Secretariat (2022). GBIF Backbone Taxonomy. Checklist dataset https://doi.org/10.15468/39omei accessed via GBIF.org on 2023-06-13; License: CC BY 4.0