Difference between revisions of "Hypericum tenuifolium"

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==Ecology==
 
==Ecology==
 
===Habitat=== <!--Natural communities, human disturbed habitats, topography, hydrology, soils, light, fire regime requirements for removal of competition, etc.-->
 
===Habitat=== <!--Natural communities, human disturbed habitats, topography, hydrology, soils, light, fire regime requirements for removal of competition, etc.-->
In the Coastal Plain in Florida, ''H. tenuifolium'' occurs in sands of seasonally wet depressions with ''Polygonella polygama, Pinus palustris'' and ''Paronychia chartacea'' (FSU Herbarium).
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This species is found in dry, sandy, open sites with good drainage such as sandy woods, dunes and dune hollows, lowland and coastal areas <ref name="hypericum">[[http://hypericum.myspecies.info/taxonomy/term/924/descriptions]] Hypericum online. Accessed: January 6, 2016</ref>. It is drought tolerant, however does not favor well in soils that remain wet for extended periods<ref name="uga"/>. Associated species include ''Polygonella polygama, Pinus palustris'' and ''Paronychia chartacea'' (FSU Herbarium).
  
 
===Phenology=== <!--Timing off flowering, fruiting, seed dispersal, and environmental triggers.  Cite PanFlora website if appropriate: http://www.gilnelson.com/PanFlora/ -->
 
===Phenology=== <!--Timing off flowering, fruiting, seed dispersal, and environmental triggers.  Cite PanFlora website if appropriate: http://www.gilnelson.com/PanFlora/ -->

Revision as of 11:26, 6 January 2016

Hypericum tenuifolium
Insert.jpg
Scientific classification
Kingdom: Plantae
Division: Magnoliophyta - Flowering plants
Class: Magnoliopsida - Dicotyledons
Order: Theales
Family: Clusiaceae ⁄ Guttiferae
Genus: Hypericum
Species: H. tenuifolium
Binomial name
Hypericum tenuifolium
Pursh
Hype tenu dist.jpg
Natural range of Hypericum tenuifolium from USDA NRCS Plants Database.

Common name: Atlantic St. Johnswort

Taxonomic notes

Description

H. tenuifolium is a short lived perennial herb that can reach heights of 12 to 18 inches tall. Stems are reddish brown and are covered with short needle-like shiny deep green leaves [1]. The flowers have 5 yellow petals, 5 persistent sepals, a superior ovary, and are bisexual and radially symmetrical [2]. A distinctive characteristic of this species is the long capsule, ranging from 6 to 9 mmm long [3].

Distribution

Ecology

Habitat

This species is found in dry, sandy, open sites with good drainage such as sandy woods, dunes and dune hollows, lowland and coastal areas [4]. It is drought tolerant, however does not favor well in soils that remain wet for extended periods[1]. Associated species include Polygonella polygama, Pinus palustris and Paronychia chartacea (FSU Herbarium).

Phenology

Seed dispersal

Seed bank and germination

Fire ecology

Pollination

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

Apidae: Apis mellifera, Bombus griseocollis, B. impatiens

Colletidae: Colletes distinctus, C. productus, C. sp. A, Hylaeus confluens

Halictidae: Augochlorella aurata, A. gratiosa, Augochloropsis anonyma, A. metallica, A. sumptuosa, Lasioglossum miniatulus, L. nymphalis, L. placidensis, L. tamiamensis

Megachilidae: Anthidiellum perplexum, Dianthidium floridiense, Megachile albitarsis, M. brevis pseudobrevis, M. rugifrons

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: Loran C. Anderson, Wilson Baker, Ann Johnson. States and Counties: Florida: Bay. Compiled by Tall Timbers Research Station and Land Conservancy.

  1. 1.0 1.1 [[1]]UGA Extension Accessed: January 6, 2016
  2. [[2]] Name that Plant. Accessed: January 6, 2016
  3. [[3]] Accessed: January 6, 2016
  4. [[4]] Hypericum online. Accessed: January 6, 2016