Burke: Helenium autumnale vs. Helenium drummondii

	Helenium autumnale	Helenium drummondii
	common sneezeweed, large flowered sneezeweed
Habit	Fibrous-rooted perennial, 1.5-12 dm. tall, nearly glabrous.
Leaves	Leaves numerous, lanceolate, narrowed to a sessile base from which wings are formed along the stem, only slightly reduced upward, 4-15 cm. long and 5-40 mm. wide, usually shallowly toothed, the lowest early-deciduous.
Flowers	Heads usually numerous, sub-globose, the disk yellow, 1-2 cm. wide; involucral bracts narrow, herbaceous, soon deflexed; rays 10-20, pistillate, wedge-shaped, 3-lobed, yellow, soon deflexed; pappus of several series of papery scales, lanceolate or ovate, long-pointed, 2 mm. long.
Fruits	Achenes truncately obpyramidal, 4-5 angled and ribbed.

	Helenium autumnale	Helenium drummondii
Flowering time	July-September
Habitat	Stream banks and other moist, low ground generally at low elevations.
Distribution	Occurring on both sides of the Cascades crest in Washington; British Columbia to California, east across North America to the Atlantic Coast. [WildflowerSearch map] [BONAP county map]	[BONAP county map]
Origin	Native
Conservation status	Not of concern
Sibling taxa		H. autumnale
Web links	Local floras: BC, CA, OR, WA Local Web sites: CalFlora, CalPhotos, Flora NW, PNW Herbaria, Turner Photog. WildflowerSearch iNaturalist (observations) USDA Plants Database LBJ Wildflower Center SEINet Plants of the World Online Encyclopedia of Life Wikipedia Google Image Search	Local Web sites: Flora NW, PNW Herbaria WildflowerSearch iNaturalist (observations) USDA Plants Database LBJ Wildflower Center SEINet Plants of the World Online Encyclopedia of Life Wikipedia Google Image Search

Helenium autumnale

Helenium drummondii

common sneezeweed, large flowered sneezeweed

Habit

Fibrous-rooted perennial, 1.5-12 dm. tall, nearly glabrous.

Leaves

Leaves numerous, lanceolate, narrowed to a sessile base from which wings are formed along the stem, only slightly reduced upward, 4-15 cm. long and 5-40 mm. wide, usually shallowly toothed, the lowest early-deciduous.

Flowers

Heads usually numerous, sub-globose, the disk yellow, 1-2 cm. wide;

involucral bracts narrow, herbaceous, soon deflexed;

rays 10-20, pistillate, wedge-shaped, 3-lobed, yellow, soon deflexed;

pappus of several series of papery scales, lanceolate or ovate, long-pointed, 2 mm. long.

Fruits

Achenes truncately obpyramidal, 4-5 angled and ribbed.