Difference between revisions of "Arnoglossum sulcatum"
Phytologia 28: 295. 1974.
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|tribe=Asteraceae tribe Senecioneae | |tribe=Asteraceae tribe Senecioneae | ||
|genus=Arnoglossum | |genus=Arnoglossum | ||
Latest revision as of 20:00, 5 November 2020
Plants 70–140 cm. Stems strongly ridged (glabrous or sparsely pubescent). Basal leaves: (petioles 10–45 cm) blades (with 3 main veins from bases) broadly ovate or elliptic, 12–15(–20) cm (bases cuneate, decurrent onto petioles), margins entire, sinuate, crenulate, or denticulate. Cauline leaves: proximal petiolate or sessile (mid stem sessile, bases broadly cuneate), blades narrowly ovate, margins entire, sinuate, crenulate, or denticulate; distal petiolate or sessile, smaller. Involucres (8–)9.5–10(–12) mm. Phyllaries (pale green) ovate, midvein wings uniform or highest at apices. Corollas white or greenish, sometimes tinged with purple, 7–8(–9.5) mm. Cypselae fusiform or clavate, 4 mm (dark brown, 6–8-ribbed); pappi 5–7 mm. 2n = 50.
Phenology: Flowering Sep–Nov.
Habitat: Shaded, wet areas of hillside seepages, thickets, and swamps
Elevation: 0–100 m
Distribution
Ala., Fla., Ga.
Discussion
Of conservation concern.
Arnoglossum sulcatum occurs in the Florida panhandle and adjacent Georgia and Alabama.
Selected References
None.