Show Lower Taxa
Difference between revisions of "Balsamorhiza subg. Artorhiza"
Ann. Missouri Bot. Gard. 22: 115. 1935.
Basionym: Artorhiza Nuttall Trans. Amer. Philos. Soc., n. s. 7: 350. 1840
Synonyms: Balsamorhiza sect. Artorhiza (Nuttall) Jepson
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|authority=Nuttall | |authority=Nuttall | ||
| + | |publication_title=Trans. Amer. Philos. Soc., n. s. | ||
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| − | |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/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V19-20-21/V21_218.xml |
|tribe=Asteraceae tribe Heliantheae | |tribe=Asteraceae tribe Heliantheae | ||
|subtribe=Asteraceae (tribe Heliantheae) subtribe Ecliptinae | |subtribe=Asteraceae (tribe Heliantheae) subtribe Ecliptinae | ||
Revision as of 18:47, 24 September 2019
Taproots relatively massive; bark relatively thick, corrugated; rhizomes none; caudices usually multi-branched. Petioles mostly longer than leaf blades. Basal leaves: blades mostly rounded-deltate or deltate to triangular-deltate, bases sagittate or cordate to truncate, margins usually entire, sometimes crenate. Cauline leaves usually at mid stems. Ray corollas yellow.
Distribution
w North America.
Discussion
Species 3 (3 in the flora).
Members of subg. Artorhiza inhabit relatively deep, well-developed soils, flower only after at least 4–5 years, and attain ages of possibly 50 years.
Selected References
None.