Difference between revisions of "Psacalium decompositum"

(A. Gray) H. Robinson & Brettell

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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|tribe=Asteraceae tribe Senecioneae
 
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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

V20-1394-distribution-map.gif

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.
... more about "Psacalium decompositum"
Theodore M. Barkley† +
(A. Gray) H. Robinson & Brettell +
Cacalia decomposita +
Ariz. +, N.Mex. +, Mexico (Chihuahua +, Durango +  and Sonora). +
1700–2600 m +
Shady sites, open woodlands +
Flowering summer–early fall. +
Mesadenia decomposita +  and Odontotrichum decompositum +
Psacalium decompositum +
Psacalium +
species +