Hypericum tetrapetalum

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Hypericum tetrapetalum
Insert.jpg
Scientific classification
Kingdom: Plantae
Division: Magnoliophyta - Flowering plants
Class: Magnoliopsida – Dicotyledons
Order: Theales
Family: Clusiaceae ⁄ Guttiferae
Genus: Hypericum
Species: H. tetrapetalum
Binomial name
Hypericum tetrapetalum
(L.) Crantz
HYPE TETR dist.jpg
Natural range of Hypericum tetrapetalum from USDA NRCS Plants Database.

Common name: fourpetal St. Johnswort

Description

H. tetrapetalum is a slender plant, usually with few branchings (FSU Herbarium). As its name implies, this species has a tetramerous calyx and corolla (FSU Herbarium).

Distribution

Ecology

Habitat

H. tetrapetalum occurs in wet sandy soils, like those of wetland woodlands, mesic flatwoods, or the margins of Karst ponds (FSU Herbarium). It can also occur in disturbed areas like roadsides (FSU Herbarium).

Phenology

This species has been observed flowering in August (FSU Herbarium).

Seed dispersal

Seed bank and germination

Fire ecology

Pollination

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

Halictidae: Augochlorella aurata, Augochloropsis metallica, Lasioglossum coreopsis, L. miniatulus

Megachilidae: Megachile brevis pseudobrevis

Use by animals

Deyrup observed these bees on, but not necessarily pollinating, H. tetrapetalum: Augochlorella aurata, Dialictzcs coreopsis, D. lniniatulusi.[1]

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: June 2014. Collectors: R. A. Norris, Robert K. Godfrey, Steve L. Orzell, and Cecil R Slaughter. States and Counties: Florida: Alachua, Leon, Osceola, and Wakulla. Georgia: Camden and Clinch.

  1. Deyrup, M. J. E., and Beth Norden (2002). "The diversity and floral hosts of bees at the Archbold Biological Station, Florida (Hymenoptera: Apoidea)." Insecta mundi 16(1-3).