Arnoglossum diversifolium

(Torrey & A. Gray) H. Robinson

Phytologia28: 294. 1974

Synonyms: Conophora diversifolia Mesadenia difformis Mesadenia diversifolia Senecio floridanus
Basionyms: Cacalia diversifolia
Found in FNA Volume 20. Treatment on page 624. Mentioned on page 623.
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 lance-ovate, 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

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.

References

None.

AuthorLoran C. Anderson +
BasionymCacalia diversifolia +
Elevation0–100 m +
HabitatWet or mucky soils, along streams, swamps, woodlands +
IllustratorYevonn Wilson-Ramsey +
PhenologyFlowering mid May–early Jul (Aug–Sep, peninsular Florida). +
ReferenceNone +
SynonymConophora diversifolia +, Mesadenia difformis +, Mesadenia diversifolia + and Senecio floridanus +
Taxon nameArnoglossum diversifolium +
Taxon parentArnoglossum +
Taxon rankspecies +
VolumeVolume 20 +