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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|name=Artorhiza | |name=Artorhiza | ||
|authority=Nuttall | |authority=Nuttall | ||
| + | |rank=unranked | ||
| + | |publication_title=Trans. Amer. Philos. Soc., n. s. | ||
| + | |publication_place=7: 350. 1840 | ||
}} | }} | ||
|synonyms={{Treatment/ID/Synonym | |synonyms={{Treatment/ID/Synonym | ||
|name=Balsamorhiza sect. Artorhiza | |name=Balsamorhiza sect. Artorhiza | ||
|authority=(Nuttall) Jepson | |authority=(Nuttall) Jepson | ||
| + | |rank=section | ||
}} | }} | ||
|hierarchy=Asteraceae;Asteraceae tribe Heliantheae;Asteraceae (tribe Heliantheae) subtribe Ecliptinae;Balsamorhiza;Balsamorhiza subg. Artorhiza | |hierarchy=Asteraceae;Asteraceae tribe Heliantheae;Asteraceae (tribe Heliantheae) subtribe Ecliptinae;Balsamorhiza;Balsamorhiza subg. Artorhiza | ||
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name=Balsamorhiza subg. Artorhiza | name=Balsamorhiza subg. Artorhiza | ||
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|authority=(Nuttall) W. M. Sharp | |authority=(Nuttall) W. M. Sharp | ||
|rank=subgenus | |rank=subgenus | ||
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|publication year=1935 | |publication year=1935 | ||
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|tribe=Asteraceae tribe Heliantheae | |tribe=Asteraceae tribe Heliantheae | ||
|subtribe=Asteraceae (tribe Heliantheae) subtribe Ecliptinae | |subtribe=Asteraceae (tribe Heliantheae) subtribe Ecliptinae | ||
Latest revision as of 20:10, 5 November 2020
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.