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
Basionym: Helianthus rydbergii Britton Man. Fl. N. States, 993. 1901
Treatment appears in FNA Volume 21. Treatment on page 167.
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|name=Helianthus rydbergii | |name=Helianthus rydbergii | ||
|authority=Britton | |authority=Britton | ||
+ | |rank=species | ||
|publication_title=Man. Fl. N. States, | |publication_title=Man. Fl. N. States, | ||
|publication_place=993. 1901 | |publication_place=993. 1901 | ||
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-->{{#Taxon: | -->{{#Taxon: | ||
name=Helianthus nuttallii subsp. rydbergii | name=Helianthus nuttallii subsp. rydbergii | ||
− | |||
|authority=(Britton) R. W. Long | |authority=(Britton) R. W. Long | ||
|rank=subspecies | |rank=subspecies | ||
Line 52: | Line 52: | ||
|publication year=1966 | |publication year=1966 | ||
|special status= | |special status= | ||
− | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/ | + | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/eaa6e58056e40c9ef614d8f47aea294977a1a5e9/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 20:36, 16 December 2019
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.