familyAsteraceae
genusHelianthus
speciesHelianthus nuttallii
subspeciesHelianthus nuttallii subsp. rydbergii
Difference between revisions of "Helianthus nuttallii subsp. rydbergii"
Brittonia 18: 77. 1966.
Common names: Rydberg’s sunflower
Endemic
Basionym: Helianthus rydbergii Britton Man. Fl. N. States, 993. 1901
Treatment appears in FNA Volume 21. Treatment on page 167.
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|common_names=Rydberg’s sunflower | |common_names=Rydberg’s sunflower | ||
| + | |special_status={{Treatment/ID/Special_status | ||
| + | |code=E | ||
| + | |label=Endemic | ||
| + | }} | ||
|basionyms={{Treatment/ID/Basionym | |basionyms={{Treatment/ID/Basionym | ||
|name=Helianthus rydbergii | |name=Helianthus rydbergii | ||
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|publication title=Brittonia | |publication title=Brittonia | ||
|publication year=1966 | |publication year=1966 | ||
| − | |special status= | + | |special status=Endemic |
| − | |source xml=https:// | + | |source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-data-curation.git/src/bb6b7e3a7de7d3b7888a1ad48c7fd8f5c722d8d6/coarse_grained_fna_xml/V19-20-21/V21_404.xml |
|tribe=Asteraceae tribe Heliantheae | |tribe=Asteraceae tribe Heliantheae | ||
|subtribe=Asteraceae (tribe Heliantheae) subtribe Helianthinae | |subtribe=Asteraceae (tribe Heliantheae) subtribe Helianthinae | ||
Revision as of 21:59, 27 May 2020
Plants usually 100–250 cm. Leaves all or mostly opposite; blades lanceolate to nearly ovate, apices acute to obtuse, abaxial faces hispid to hispidulous. Phyllaries: abaxial faces ± glabrate or sparsely hairy (longer hairs 0.5–1 mm).
Phenology: Flowering late summer–fall.
Habitat: Open areas, sandy dry soils, wet places
Elevation: 200–1000 m
Distribution
Alta., Man., Ont., Que., Sask., Colo., Iowa, Minn., Mont., Nebr., N.Dak., S.Dak.
Discussion
Selected References
None.
Lower Taxa
None.