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Helenium autumnale

This plant has poison characteristics. See below.
Common Name(s):
Common sneezeweed, Sneezeweed
Cultivar(s):
Helenium autumnale 'Helena Red Shades", (Helenium autumnale) 'Moerheim Beauty'
Categories:
Native Plants, Perennials, Poisonous Plants, Wildflowers
Comment:

Cultivars of sneezeweed are becoming popular perennials, and they are much showier than the weedy native sneezeweed found along dry roadsides; reliable cultivars include 'Riverton Beauty' and 'Butterpat'

Description:
Annual and perennial herbs; leaves alternate, simple, glandular-dotted; flowers yellow, in convex heads with ray flowers.
Season:
Summer to fall
Height:
1-5 ft.
Flower Color:
Yellow, orange, reddish brown
Hardiness:
USDA Hardiness Zone 3-8
Foliage:
Narrowly oblong to lance-shaped leaves; stalkless, usually toothed, 2-5 in. long; wing-angled stems; branches toward the summit
Flower:
Numerous 1-2 in. flower heads, each with 10-18 dropping bright yellow rays which are 3-lobed at the summit; large ball-shaped yellow disk
Site:
Soil tolerant; sun to partial shade; found in swamps, wet meadows and thickets
Propagation:
Division in fall
Exposure:
Full sun
Soil:
Moist, well-drained soil
Regions:
Mountains, Piedmont, Coastal Plain
Origin:
North America
Poison Part:
Leaves, flowers, seeds
Poison Delivery Mode:
Ingestion
Symptoms:
Salivation, elevated temperature and pulse, difficulty of breathing, vomiting, and convulsions
Toxic Principle:
Sesquiterpene lactone
Severity:
TOXIC ONLY IF LARGE QUANTITIES EATEN
Found in:
Forest or natural areas along stream banks and in wet areas; weedy in disturbed areas in old fields, pastures, roadsides; landscape in flower gardens as cultivated, ornamental herbaceous perennial
Life Cycle:
Perennial
Tags:
sun, summer, perennial, yellow, wildflower, poisonous, orange, red, partial shade, fall, brown

NCCES plant id: 721

Helenium autumnale Helenium autumnale
Melissa McMasters, CC BY - 2.0
Helenium autumnale bloom and leaves Helenium autumnale bloom and leaves
Virginia State Parks, CC BY - 2.0
(Helenium autumnale) 'Moerheim Beauty' (Helenium autumnale) 'Moerheim Beauty'
John Brandaurer, CC BY-NC-ND - 2.0
Helenium autumnale 'Striatum' Helenium autumnale 'Striatum'
Swallowtail Garden Seeds, CC BY - 2.0
Helenium autumnale 'Helena Red Shades' Helenium autumnale 'Helena Red Shades'
FarOutFlora, CC BY-NC-ND - 2.0