Flower profile

Western rattlesnake root

Nabalus hastatus

Western rattlesnake root (Nabalus hastatus) is a flowering plant in the Asteraceae family.

Western rattlesnake root is a flowering plant.

–states where USDA records it

556AK sightings*

687U.S. sightings*

*iNaturalist research-grade observations, as of October 17, 2026.

On our lists for: Alaska

Quick look

It belongs to the Asteraceae family. ^iNaturalist
iNaturalist has 556 research-grade sightings of it in Alaska, ranking #76 among the 121 flowers on our Alaska list. ^iNaturalist

When does it bloom?

Flowering records by month across the U.S. (iNaturalist research-grade observations marked “Flowering”) (27 records)

There are only a handful of Alaska flowering records, so this chart uses records from across the U.S.

Conservation status

Federal (U.S. ESA): Not listed No U.S. Endangered Species Act listing in the USFWS ECOS database. ^{USFWS ECOS}
NatureServe: Unknown We couldn't find this name in NatureServe Explorer. ^NatureServe
Alaska: No list Alaska has no state law listing endangered or threatened plants, so we show NatureServe's Alaska ranks instead.

Checked October 17, 2026. Rankings and lists can change, so follow the links for the latest.

Can you eat it?

For peopleNot well documented

None of the sources we checked (NC State Extension (no page for this plant)) say whether it's edible or poisonous for people.

For petsNot well documented

It isn't on the ASPCA plant list.

🌿 Never eat a wild plant unless you're certain of its ID; this isn't medical advice. Worried about a person? Call Poison Control at 1-800-222-1222. Worried about a pet? Call your vet.

Where does it grow?

USDA PLANTS has no state-by-state distribution for this name, so we can't map it yet.

Names, range and relatives

Other Nabalus on Bloomipedia (1): White rattlesnake root.

More from the Asteraceae family (212 on Bloomipedia; most observed first): Common yarrow, Goldenrods, White snakeroot, Sunflowers, Chicory, Black-eyed Susan, Bull thistle, Common dandelion.

More Alaska flowers

Common yarrow

Achillea millefolium

Native

🌼 Blooms in AK: June–September

Arctic butterbur

Petasites frigidus

Native

🌼 Blooms in AK: May–July

Orange hawkweed

Pilosella aurantiaca

Introduced

🌼 Few flowering records in AK

Sources

USDA PLANTS: no profile matched this name.
iNaturalist, Nabalus hastatus: taxonomy, research-grade observation counts and “Flowering” annotations, retrieved October 17, 2026.
Alaska: Alaska prohibited and restricted noxious weeds (11 AAC 34.020).
USFWS, ECOS species database (ESA listing check), October 17, 2026.
Edibility and toxicity: no source found (marked "not well documented").
Photo: Matt Muir via iNaturalist · CC BY 4.0 · resized.