| Helianthus laetiflorus var. subrhomboideus (Rydb.) Fern. | |||
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| Family | Compositae — APG family: Asteraceae | ||
| Synonyms | Helianthus subrhomboideus Rydb. | ||
| Description | Stem tall, scabrous, slender, simple or branched above, with gradually reduced leaves; leaves gray-green, opposite, the upper alternate, lanceolate to rhombic- ovate, scabrous, serrate to nearly entire; involucral bracts appressed, in several series, oblong; ligules yellow; disk flowers with dark-purple lobes. | ||
| Ecology | An occasionally introduced weed. | ||
| Taxonomy notes | Circumpolar map tentative. |
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.