Difference between revisions of "Heterosperma pinnatum"

Cavanilles

Icon. 3: 34 1795/1796 (as pinnata).

Treatment appears in FNA Volume 21. Treatment on page 219.
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|tribe=Asteraceae tribe Heliantheae
 
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|subtribe=Asteraceae (tribe Heliantheae) subtribe Coreopsidinae
 
|subtribe=Asteraceae (tribe Heliantheae) subtribe Coreopsidinae

Revision as of 18:48, 24 September 2019

Leaves 1–4+ cm, lobes 0.5–1(–3) mm wide. Ray laminae 1–2+ mm. Disc corollas ca. 2.5 mm. Cypselae 5–18 mm; pappi 0.5–1(–3) mm. 2n = 48, 50.


Phenology: Flowering Jun–Oct.
Habitat: Igneous and calcareous soils
Elevation: 900–2500 m

Distribution

V21-532-distribution-map.gif

Ariz., N.Mex., Tex., Mexico, Central America.

Discussion

Heterosperma pinnatum occurs throughout much of the southwestern United States. No specimens have been seen to substantiate claims of occurrences in Maryland and Massassachusetts, where it may have been ephemeral. Calyculi of H. pinnatum have been interpreted as leaves, the heads being interpreted as terminal and sessile.

Selected References

None.

Lower Taxa

None.
... more about "Heterosperma pinnatum"
Justin W. Allison +
Cavanilles +
Ariz. +, N.Mex. +, Tex. +, Mexico +  and Central America. +
900–2500 m +
Igneous and calcareous soils +
Flowering Jun–Oct. +
Undefined (tribe Undefined) subtribe Coreopsideae +  and Undefined (tribe Undefined) subtribe Petrobiinae +
Heterosperma pinnatum +
Heterosperma +
species +