Difference between revisions of "Psacalium decompositum"
Phytologia 27: 260. 1973.
Illustrated
Basionym: Cacalia decomposita A. Gray Smithsonian Contr. Knowl. 5(6): 99. 1853
Synonyms: Mesadenia decomposita (A. Gray) Standley Odontotrichum decompositum (A. Gray) Rydberg
Treatment appears in FNA Volume 20. Treatment on page 622.
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| + | |basionyms={{Treatment/ID/Basionym | ||
|name=Cacalia decomposita | |name=Cacalia decomposita | ||
|authority=A. Gray | |authority=A. Gray | ||
| + | |rank=species | ||
| + | |publication_title=Smithsonian Contr. Knowl. | ||
| + | |publication_place=5(6): 99. 1853 | ||
}} | }} | ||
|synonyms={{Treatment/ID/Synonym | |synonyms={{Treatment/ID/Synonym | ||
|name=Mesadenia decomposita | |name=Mesadenia decomposita | ||
|authority=(A. Gray) Standley | |authority=(A. Gray) Standley | ||
| + | |rank=species | ||
}} {{Treatment/ID/Synonym | }} {{Treatment/ID/Synonym | ||
|name=Odontotrichum decompositum | |name=Odontotrichum decompositum | ||
|authority=(A. Gray) Rydberg | |authority=(A. Gray) Rydberg | ||
| + | |rank=species | ||
}} | }} | ||
|hierarchy=Asteraceae;Asteraceae tribe Senecioneae;Psacalium;Psacalium decompositum | |hierarchy=Asteraceae;Asteraceae tribe Senecioneae;Psacalium;Psacalium decompositum | ||
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name=Psacalium decompositum | name=Psacalium decompositum | ||
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|authority=(A. Gray) H. Robinson & Brettell | |authority=(A. Gray) H. Robinson & Brettell | ||
|rank=species | |rank=species | ||
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|publication title=Phytologia | |publication title=Phytologia | ||
|publication year=1973 | |publication year=1973 | ||
| − | |special status= | + | |special status=Illustrated |
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|tribe=Asteraceae tribe Senecioneae | |tribe=Asteraceae tribe Senecioneae | ||
|genus=Psacalium | |genus=Psacalium | ||
Latest revision as of 20:00, 5 November 2020
Perennials; caudices thick, tough. Stems subscapiform, densely hairy proximally, sparsely hairy to subglabrous distally. Leaves mostly basal; petiole lengths ± equaling blades; blades ovate or elliptic, 20–30(–40) cm, nearly as wide, deeply 3–4-pinnatisect, ultimate lobes narrowly triangular to oblong, acute; mid and distal leaves progressively smaller, bractlike. Calyculi: bractlets 2–4 mm. Phyllaries (4–)5–7 mm. Corollas 7–9 mm. Cypselae 4–5 mm; pappi 4–7 mm. 2n = 60.
Phenology: Flowering summer–early fall.
Habitat: Shady sites, open woodlands
Elevation: 1700–2600 m
Distribution
Ariz., N.Mex., Mexico (Chihuahua, Durango, Sonora).
Discussion
Psacalium decompositum barely enters the flora area in Arizona and New Mexico.
Selected References
None.
Lower Taxa
None.