Difference between revisions of "Asimina obovata"

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===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/ -->
Blooms in April <ref name="EOL"/>.
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Blooms in April <ref name="EOL"/>. It has white flowers and green fruit
  
 
===Seed dispersal===
 
===Seed dispersal===

Revision as of 11:43, 24 November 2015

Asimina obovata
Insert.jpg
Scientific classification
Kingdom: Plantae
Division: Magnoliophyta - Flowering plants
Class: Magnoliopsida - Dicotyledons
Order: Magnoliales
Family: Annonaceae
Genus: Asimina
Species: A. obovata
Binomial name
Asimina obovata
(Willd.) Nash
Asim obov dist.jpg
Natural range of Asimina obovata from USDA NRCS Plants Database.

Taxonomic notes

Common names: Bigflower Pawpaw

Description

A description of Asimina obovata is provided in The Flora of North America.

Asimina obovata is a long-lived perennial.[1] Such as other species in the Genus Asimina, it has a deep taproot and resprouts from a lignotuber after fire or disturbance (Kral 1960, 1993). Leaves are alternate and simple with pinnate venation[2]. It can be a shrub or a small tree growing three meters or more[3].

Distribution

Ecology

Habitat

Asimina obovata is endemic to the xerophytic scrub and sandhill habitats in north and central Florida (Crummer 2003). Associated species include Pinus clausa, Quercus gemiata, Quercus myrtifolia, Ceratiola ericoides, Ilex opaca var. arenicola, Garberia heterophylla, and Persea humilus (Crummer 2003).

Phenology

Blooms in April [4]. It has white flowers and green fruit

Seed dispersal

Seed bank and germination

Seedlings have been found in the shade of parent plants due to the importance of shade and seed burial to prevent seed desiccation after ripening (Crummer 2003).

Fire ecology

In the year following a fire, A. obovata resprouts with more stems than were present pre-fire, however these stems are smaller and less woody with a higher chance of herbivory. The amount of flowers blooming is the greatest in the second flowering season post-fire with flower numbers decreasing as the fire interval becomes longer. [5].

Pollination

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

Apidae: Apis mellifera

Vespidae: Polistes dorsalis hunteri

Use by animals

In order to protect itself from herbivory, A. obovata contains a toxin called annonaceous acetogenins which inhibits mitochondrial respiration in preditors. [4]

Gopher tortoises have been observed to eat the ripe fruit and spit out the seeds (Norman and Clayton 1986).

Diseases and parasites

Conservation and Management

Cultivation and restoration

Photo Gallery

References and notes

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

  1. [Florida Native Plant Society. Accessed: November 24, 2015]
  2. [Lady Bird Johnson Wildflower Center. Accessed: November 23, 2015.]
  3. [[1]]Accessed: November 24, 2015.
  4. 4.0 4.1 [Encyclopedia of Life]Accessed November 24, 2015
  5. [[2]] Archbold Biological Station. Accessed: November 24, 2015