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Helenium puberulum
Also called Sneezewort
Helenium puberulum is a North American species of flowering plants in the daisy family known by the common name rosilla. It is native to California and Baja California, where it can be found in moist habitats such as riverbanks and meadows. It has also been found in Oregon, although these might possibly be naturalized populations.
Helenium puberulum is an annual or perennial herb sometimes as much as 160 cm tall though other times much smaller. Most of the leaves are on the lower part of the plant. Stems are winged, meaning that they have flaps of tissue running down the sides. One plant can produce as many as 30 flower heads in a branched array. The head is unusual in that the part covered by the disc florets is almost completely spherical rather than conical as in most other species of the genus.
Yellowdicks · Helenium apterum · Helenium argentinum · Arizona sneezeweed · Helenium aromaticum · Common sneezeweed · Bigelow's sneezeweed · Coastal sneezeweed · Shortleaf sneezeweed · Oldfield sneezeweed · Helenium chihuahuensis · Fringed sneezeweed
Text excerpted from the Wikipedia article Helenium puberulum by its contributors, under CC BY-SA 4.0; the excerpts are shared under the same licence.
Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.
