Helenium

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Helenium

North American genus of plants in the Asteraceae family; contain sesquiterpene lactones which cause a syndrome of abdominal pain, vomiting, diarrhea, incoordination, dyspnea. Includes H. amarum (H. tenuifolium), H. autumnale (sneezeweed, bitter weed), H. flexuosum (H. nudiflorum), H. hoopesii (orange sneezeweed), H. integrifolium, H. microcephalum (small head sneezeweed). H. amarum imparts a bitter taste to the milk of cattle which eat it. Called also Dugaldia spp., sneezeweed.
References in periodicals archive ?
Table 1--Levels of TSS (total soluble sugars), RS (reducing sugars), NRS (non-reducing sugars), and starch in floral structures of Lilium pumilum at different development stages.
pumilum is found in sandy, moist conditions near small streams across the Cape floral kingdom of South Africa.
Tres de ellas, Eurhynchium pumilum, Scleropodium touretii y Tortella nitida, se citan por primera vez como urbanicolas en Espana.