Helianthus hirsutus
hairy sunflower
Family Asteraceae
IUCN: Least concern Wikipedia (opens in a new tab)
About
Hairy sunflower is a rhizomatous perennial of sunny open forests and woodland edges, widespread in eastern North America.
Care at a glance
- Pet safety
- Not recorded. We have no source on whether this plant is safe for cats, dogs or other pets — that is not the same as safe. Keep it out of reach until you have checked.
- People
- Not recorded.
- Light
- Full sun gives the most flowers; partial shade is tolerated. General guidance for the genus
- Propagation
- Seed or stem cuttings. General guidance for the genus
“General guidance for the genus” marks advice sourced for the genus as a whole rather than this species.
Field notes
Morphology
Up to about 2 m tall with stiff hairs on stems and leaves. Plants have 1–7 heads, each with 10–15 yellow rays around 40 or more yellow disc florets.
Distribution & habitat
Ontario south to Florida and west to Minnesota, Nebraska and Texas, reaching Coahuila and Nuevo León in Mexico.
Ecology
Insect-pollinated; recorded visitors in northern Florida include sweat bees, a leafcutter bee and Svastra bees.
Conservation
Assessed as Least Concern by the IUCN.
Habitat
- Altitude
- Not recorded
- Altitude class
- —
- Native to
- United States, Canada, Mexico
- IUCN status
- Least concern
Cultivation
- Difficulty
- Not recorded
Text adapted from Wikipedia, CC BY-SA 4.0.
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