Plants 100–200 (–300) cm. Stems proximally ribbed (and purplish), distally angular (and greenish). Basal leaves: (petioles with brownish hairs) blades ovate to cordate-ovate, to 10 cm (bases truncate), margins denticulate. Cauline leaves: proximal petiolate, deltate-hastate, margins dentate (faces glabrous); distal petiolate or sessile, smaller (faces finely puberulent). Involucres (7.5–) 9–11 mm. Phyllaries lanceovate, midvein wings uniform or highest at apices. Corollas white or purplish, 8.5–9.5 (–10.5) mm. Cypselae fusiform, 3 mm; pappi (6–) 7–8 mm. 2n = 50.

Phenology: Flowering mid May–early Jul (Aug–Sep, peninsular Florida).
Habitat: Wet or mucky soils, along streams, swamps, woodlands
Elevation: 0–100 m

Distribution

• Generated Map
• Legacy Map

Ala., Fla., Ga.

Discussion

Of conservation concern.

Arnoglossum diversifolium grows primarily in the Florida panhandle and adjacent Alabama and Georgia, and in Putnam and Levy counties, Florida.

Selected References

None.

Lower Taxa

None.