Notice: Atrium is currently undergoing maintenance. During this time, some or all images may not be displayed.

Asteraceae

Chrysopsis (Nutt.) Elliott

Kingdom: Plantae Rank: Genus Parent: Asteraceae Status: Valid

Common Names:

  • GOLDEN-ASTER - English, United States of America

Morphological Description

Diagnosis: Taprooted annual herbs; leaves alternate; ray flowers pistillate, fertile, yellow; disk flowers yellow; pappus of bristles and sometimes small scales.

Other

Notes: A genus of 10 species native from the se United States (especially Florida) to Mexico and the Bahamas; including the previously recognized monotypic genus Bradburia. Chrysopsis has sometimes been treated in Heterotheca. Generic boundaries for the GOLDEN-ASTERS has long been problematic. Semple (1977, 1981) and Nesom (1991a, 1991b) gave convincing justification for the delineation followed here; more recently Semple (1996) transferred C. pilosa to Bradburia , making it a genus of 2 species of annuals; he indicated (pers. comm.) that while the two genera are most likely more closely related than any of the other GOLDEN-ASTER genera, it remains to be seen whether the (x = 3,4) pilosa-hirtella lineage is derived from within the Chrysopsis lineage (x = 4,5) or whether the two share an immediate common ancestor (x = 5). Until these relationships are clarified, we are following Nesom (1991a, 1997b) and J. Kartesz (pers. comm. 1997) in treating the 2 nc TX species in Chrysopsis. (Greek: chrysos, gold, and opsis, aspect, from the golden inflorescences) (tribe Astereae)