Hypericum edisonianum

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Hypericum edisonianum
Insert.jpg
Scientific classification
Kingdom: Plantae
Division: Magnoliophyta - Flowering plants
Class: Magnoliopsida - Dicotyledons
Order: Theales
Family: Clusiaceae ⁄ Guttiferae
Genus: Hypericum
Species: H. edisonianum
Binomial name
Hypericum edisonianum
(Small) P. Adams & N. Robson
Hype edis dist.jpg
Natural range of Hypericum edisonianum from USDA NRCS Plants Database.

Common name: Arcadian St. Johnswort

Taxonomic notes

Description

H. edisonianum is a multi-branched evergreen shrub that forms extensive thickets. The stems are thin and dark with silvery black bark, and are leafless except for the upper branches. Leaves are opposite, oval, gland-dotted abaxially. The flowers are composed of 4 yellow petals, 2 large sepals with pointed tips and rounded bases [1].

Distribution

Ecology

Habitat

In the Coastal Plain in Florida, H. edisonianum has been found in ephemeral ponds, flatwood ponds, and wet swales in low pine-palmetto flats (FSU Herbarium). Associated species include Andropogon brachystachyus, Ascyrum tetrapetalum, and Ascyrum hypericoides (FSU Herbarium). Soils have been recorded as Paola-Basinger (Spodic Quartzipsamments) (FSU Herbarium).

Phenology

Flowers April through June and November (FSU Herbarium).

Seed dispersal

Seed bank and germination

Fire ecology

Pollination

The following Hymenoptera families and species were observed visiting flowers of Hypericum edisonianum at Archbold Biological Station (Deyrup 2015):

Apidae: Apis mellifera, Bombus impatiens, B. pennsylvanicus

Colletidae: Hylaeus confluens, H. schwarzi

Halictidae: Augochloropsis sumptuosa, Lasioglossum miniatulus, L. nymphalis, L. pectoralis, L. placidensis, L. puteulanum

Megachilidae: Anthidiellum perplexum, Megachile brevis pseudobrevis, M. mendica, M. petulans

Use by animals

Diseases and parasites

Conservation and Management

Cultivation and restoration

Photo Gallery

References and notes

Deyrup, M.A. and N.D. 2015. Database of observations of Hymenoptera visitations to flowers of plants on Archbold Biological Station, Florida, USA.

Florida State University Robert K. Godfrey Herbarium database. URL: http://herbarium.bio.fsu.edu. Last accessed: October 2015. Collectors: W.P. Adams, Leonard J. Brass, Edwin L. Bridges, George R. Cooley, R.K. Godfrey, Colleen Hoy, Beverly Judd, Walter S. Judd, Steve L. Orzell, Grady W. Reinert, Joe Testasecca, Daniel B. Ward, Kenneth A. Wilson, Carroll E. Wood. States and Counties: Florida: Glades, Highlands. Compiled by Tall Timbers Research Station and Land Conservancy.

  1. [[1]]FNAI. Accessed: January 5, 2015