Bigelow's Sneezeweed — photo 1

Bigelow's Sneezeweed

Helenium bigelovii · Asteraceae

Form
Perennial
Height
1–4 ft
Sun
Full Sun
Water
High
Blooms
Jun, Jul, Aug, Sep
Habitat
Wetland · Riparian · Montane

🌿 California native

Quick facts

  • Habitat: Wet montane meadows, seeps, and Riparian streambanks
  • Form / size: Erect wet-meadow perennial, 1–4 ft
  • Sun: Full sun · Water: High (wet soil)
  • Blooms: Domed yellow daisies with swept-back rays, summer–fall · Pollinator value: High

Description

A striking yellow daisy of wet mountain meadows. From a basal rosette, erect stems one to four feet tall carry showy heads about an inch and a half to two inches across. The identifying detail is the shape: fourteen to twenty bright-yellow ray florets that are wedge-shaped, three-toothed at the tip, and bend backward, around a prominent dome- to globe-shaped disc of up to several hundred tiny florets that ages brown. The leaves are alternate and narrow, and their bases run down the stem as narrow wings, a hallmark of the genus. Despite the name, it does not cause hay fever; “sneezeweed” comes from a related plant’s dried heads once used as a snuff.

Ecological role

Bigelow’s sneezeweed is a wetland plant of wet meadows, fens, marsh edges, and streambanks, a moisture indicator that persists only where the water table stays high. Its long bloom, from early summer into fall, fills a late-season nectar and pollen gap for montane bees and butterflies in yellow-pine, red-fir, lodgepole, and subalpine forest meadows. Its foliage carries bitter compounds that grazers avoid, one reason it can persist in grazed mountain meadows.

Habitat & range

Wet montane meadows, seeps, and streambanks through the Sierra Nevada, roughly 3,000 to 10,000 ft, most abundant on the wetter west slope and in northwestern California. It grows in the Lake Tahoe basin (documented at Mt. Rose Meadows on the northeast rim) and in the Eastern Sierra around June Lake and Mammoth Lakes.

In the garden

A strong summer-to-fall pollinator plant for bog gardens, rain gardens, and pond or stream edges. It needs consistently moist to wet soil and is not drought-tolerant, but it tolerates many soil types, including clay, as long as the moisture is reliable. Full sun; cut it back after bloom.

Propagation

From seed surface-sown on moist soil (it germinates better with light), with cold-moist stratification for mountain-collected seed. Established clumps can be divided in early spring; keep the divisions wet until they root.

Where to see it near you

Sources

Commonly confused with

🌿 Rosilla Helenium puberulum the other California sneezeweed, with tiny button-like domed heads and very short or absent rays, versus this species' showy reflexed rays.
🌿 Arnicas also yellow meadow daisies, but with opposite leaves and a flat disc and no winged stem. Bigelow's sneezeweed has alternate, stem-winged leaves and a raised dome.
Woolly Mule's Ears Woolly Mule's Ears 🌿 Wyethia mollis shares meadow edges but has huge coarse basal leaves and a flat center, unlike this fine-leaved plant with a domed brown-yellow disc.