Helianthus silphioides
rosinweed sunflower
Family Asteraceae
IUCN: Least concern Wikipedia (opens in a new tab)
About
Rosinweed sunflower is a tall perennial of open ground in the Ozarks and Tennessee Valley with broad, egg-shaped leaves.
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 3 m tall with broadly egg-shaped leaves. Plants have 3–15 heads with 8–13 yellow rays around 75 or more red disc florets.
Distribution & habitat
Central United States, chiefly the Ozarks and Tennessee Valley, north to Kentucky and Illinois and south to Louisiana, Mississippi and Alabama, in open sites.
Conservation
Least Concern (IUCN), but critically imperiled in Illinois and endangered in Kentucky, likely from loss of open oak woodland and barrens.
Habitat
- Altitude
- Not recorded
- Altitude class
- —
- Native to
- United States
- IUCN status
- Least concern
Cultivation
- Difficulty
- Not recorded
Text adapted from Wikipedia, CC BY-SA 4.0.
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