Arnoglossum diversifolium

(Torrey & A. Gray) H. Robinson

Phytologia 28: 294. 1974.

EndemicConservation concern
Basionym: Cacalia diversifolia Torrey & A. Gray Fl. N. Amer. 2: 435. 1843
Synonyms: Conophora diversifolia (Torrey & A. Gray) Nieuwland Mesadenia difformis Small Mesadenia diversifolia (Torrey & A. Gray) Greene Senecio floridanus Schultz-Bipontinus
Treatment appears 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


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


Lower Taxa

... more about "Arnoglossum diversifolium"
Loran C. Anderson +
(Torrey & A. Gray) H. Robinson +
Cacalia diversifolia +
Ala. +, Fla. +  and Ga. +
0–100 m +
Wet or mucky soils, along streams, swamps, woodlands +
Flowering mid May–early Jul (Aug–Sep, peninsular Florida). +
Endemic +  and Conservation concern +
Conophora diversifolia +, Mesadenia difformis +, Mesadenia diversifolia +  and Senecio floridanus +
Arnoglossum diversifolium +
Arnoglossum +
species +