| Arnica cordifolia Hook. | |||
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| Family | Compositae — APG family: Asteraceae | ||
| Description | Stem mostly simple, from branching rhizome, glandular-puberulent to pilose; basal leaves long-petiolated, ovate to orbicular, subcordate, with broad, shallow sinus, dentate; cauline leaves ovate to lanceolate in 2-3 pairs, the lower long- petiolated, the upper small, reduced; heads large, 1 to several; involucral bracts lanceolate or oblanceolate, acute, pilose at base, glandular; ligules 20-28 mm long, yellow; tube of disk flowers pilose; achenes evenly hirsute and often stipitate, glandular; pappus white, barbellate. | ||
| Ecology | Woods, meadows. Described from the Rocky Mountains and the Blue Mountains. | ||
| Taxonomy notes | The closely related A. Whitneyi Fern. occurs at the Great Lakes. |
This is a digital representation of Eric Hultén’s ‘Flora of Alaska and Neighboring Territories: A Manual of the Vascular Plants’, which was published by Stanford University Press in 1968. The book was digitized by C. Webb (at UAMN) as part of the Flora of Alaska project, with funding by the US NSF (Grant 1759964 to Ickert-Bond & Webb), and with permission of Stanford University Press. Data and images © 1968 Board of Trustees of the Leland Stanford Jr. Univ. Usage licence: Creative Commons BY-NC-SA 4.0. NB: You may find OCR errors; please refer to the hard-copy if in doubt.