Annual Sunflower vs Bolander's Sunflower

Helianthus annuus compared with Helianthus bolanderi

Key Differences

• Annual Sunflower is Not Evaluated while Bolander's Sunflower is Least Concern.

Taxonomic Classification

Rank	Annual Sunflower	Bolander's Sunflower
Kingdom same	Plantae (Plants)	Plantae (Plants)
Phylum same	Magnoliophyta (Flowering Plants)	Magnoliophyta (Flowering Plants)
Class same	Magnoliopsida (Dicots)	Magnoliopsida (Dicots)
Order same	Asterales (Daisies & Sunflowers)	Asterales (Daisies & Sunflowers)
Family same	Asteraceae (Daisy Family)	Asteraceae (Daisy Family)
Genus same	Helianthus (Sunflowers)	Helianthus (Sunflowers)
Species	Helianthus annuus	Helianthus bolanderi

Evolutionary Relationship

Annual Sunflower and Bolander's Sunflower share a common ancestor at the Genus level: Helianthus. (Sunflowers)

Conservation Status

Annual Sunflower

NE — Not Evaluated

Trend: Stable →

Bolander's Sunflower

LC — Least Concern

Physical Characteristics

Attribute	Annual Sunflower	Bolander's Sunflower
Diet	Autotroph	—
Average Lifespan	1 years	—
Average Length	3.0 m	—
Average Weight	—	—

Habitat & Geographic Range

Annual Sunflower

Habitat

Inhabits montane grasslands and shrublands and Mediterranean forests and woodlands within the Palearctic biogeographic realm.

Range

Widely distributed across Africa (12 countries), Asia (7 countries), Europe (30 countries), North America (Canada, United States), Oceania and the Pacific (Australia, Marshall Islands), and South America (4 countries).

Bolander's Sunflower

Habitat

Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

Annual Sunflower

One of the world's most cultivated flowering plants and an economically critical oilseed crop, sunflowers are native to North America and can reach 3 meters in height with flower heads up to 30 cm across. Their distinctive behavior of tracking the sun — solar heliotropism in young plants — gave them their name. A single sunflower head consists of up to 2,000 tiny individual florets. Global production exceeds 50 million tonnes annually, valued for oil, seeds, and birdfeed.

Bolander's Sunflower

The Bolander's Sunflower (Helianthus bolanderi) is a species in the genus Helianthus. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial habitats from tropical forests to temperate regions.