General Description | A small perennial shrub that is usually found in disturbed places. It’s many branches are tomentos, and it’s leaves are long and velvety. It attracts both bees and butterflies with it’s pinkish-white, flat topped inflorescences. |
ID Characteristic | “When rubbed, the leaves have an unpleasant, rather turpentine-like odor, and they can make your hands feel a bit sticky. It has pinkish-white to lavender inflorescences with brownish-white pappus and it’s stems are glandular tomentos. |
Shape | An erect shrub. Older plants are held upright by flexible lateral roots and it can be sparsely branched. |
Landscape | It is a successional nurse crop and can be used for re-vegetation, dune stabilization, and for erosion control. It is considered invasive outside of its natural range, competing with native plants for space and resources. |
Propagation | P. carolinensis uses wind based dispersal and requires bare, wet soil to germinate. It may be helpful to scarify the ground prior to propagation. |
Cultivation | As an early successional species it is shade intolerant and commonly thrives in disturbed habitats. Tolerant of salt and compaction, it grows in areas with at least 1000 mm of annual rainfall or where there is sufficient groundwater levels and requires bare, wet soil in which to germinate. |
Notable Specimens | Pluchea carolinensis is considered a weed in several places including Hawaii and Taiwan. It rears it’s unwanted panicles in many locations across the state of Florida, United States of America, including in Big Pine Key, Miami Beach, West Palm Beach, and Seminole. |
Habitat | It is found in subtropical/tropical moist lowlands as well as naturally and human impacted disturbed places such as: landslides, burned areas, construction sights, abandoned fields, dry coastal areas, barren mud/stone slopes, eroded sites, roadsides and hammock borders. It grows from around sea level to an elevation of 1000 m. |
Bark/Stem Description | The basal stem can be up to 6 cm in diameter. P. carolinensis stems are glandular tomentos and moderately soft and brittle. |
Leaf Description | The leaves are green and almost hairless to finely haired above, paler dull green and velvety below, smooth-edged or very finely toothed, petiolate, and variably elliptic in shape. They are 6-15 cm long, 2-6 cm wide, petioles 1-2.5 cm long. |
Flower Description | It has flat topped inflorescences of pinkish-white that age to a rusty brown with it’s individual blooms measuring under 2.54 cm. The individual blooms have tardily falling pappi made up of 10-12 capillary bristles that are a dull brownish-white. |
Fruit Description | It has achenes that are brownish-black, measuring 0.8 mm long. They are scarcely grooved and are a sparsely whitish pubescent. The achenes are vestigial as a small, cartilaginous ring. |