Difference between revisions of "Palafoxia riograndensis"
Rhodora 48: 84. 1946.
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name=Palafoxia riograndensis | name=Palafoxia riograndensis | ||
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|publication year=1946 | |publication year=1946 | ||
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|tribe=Asteraceae tribe Heliantheae | |tribe=Asteraceae tribe Heliantheae | ||
|subtribe=Asteraceae (tribe Heliantheae) subtribe Chaenactidinae | |subtribe=Asteraceae (tribe Heliantheae) subtribe Chaenactidinae | ||
Latest revision as of 20:15, 5 November 2020
Annuals, 30–60 cm. Stems scabrous to glabrate, not stipitate-glandular. Leaf blades lance-linear, 30–70 × 2–8 mm. Involucres ± cylindric. Phyllaries 10–15 × 1–2 mm, ± equal, ± scabrous, not stipitate-glandular. Ray florets 0. Disc florets 8–25; corollas zygomorphic (outer) to actinomorphic (inner), 6–9 mm, throats ± funnelform, shorter than lobes. Cypselae 7–12 mm; pappus scales of inner cypselae 5–8 mm. 2n = 24.
Phenology: Flowering (spring–)late summer–fall.
Habitat: Sandy or silty soils
Elevation: 50–200+ m
Distribution
Tex., Mexico (Chihuahua, Coahuila).
Discussion
Selected References
None.
Lower Taxa
None.