Orange Sneezeweed - Helenium hoopesii
Dugaldia hoopesii, Hymenoxys hoopesii
Orange Sneezeweed is an herbaceous perennial with several stems that are 20-100 cm tall and which arise from a short rhizome or branched, fibrous-rooted crown. The oblong, lance-shaped, entire-margined basal leaves are 10-30 cm long and 1-5 cm wide with a wide petiole. The numerous, alternate stem leaves become smaller and sessile upward. Foliage is glabrous or sparsely long-hairy. Several flower heads are borne in a flat-topped inflorescence at the top of the stem. Each head has two series of narrow, pointed, hairy involucral bracts. The 17-25 yellowish-orange rays are 15-30 mm long and 3-lobed at the tip. The numerous yellow disk flowers are ca. 5 mm long. The hairy, 4-angled achenes are topped by 5-10 stiff, white, long-pointed scales.
Flowering in July-August.
The tall, leafy stems and 3-lobed, orange rays are diagnostic.
OR to MT, south to CA, AZ and NM. One collection from Beaverhead County (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).
Moist, often disturbed soil of meadows and grasslands in the montane zone.
- Additional ReferencesLegend: View Online Publication
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- Lackschewitz, K., P. Lesica, and J. S. Shelly. 1988. Noteworthy collections: Montana. Madrono 35:355-358.
- Lesica, P., M. T. Lavin, and P. F. Stickney. 2012. Manual of Montana Vascular Plants. Fort Worth, TX: BRIT Press. viii + 771 p.