Difference between revisions of "Opuntia humifusa"

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(Seed dispersal)
(Seed dispersal)
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===Seed dispersal===
 
===Seed dispersal===
The fruit is eaten and dispersed by birds, rabbits, woodrats, prairie-dogs, mice, ground squirrels, and white-tailed deer <ref name="fs">[[http://www.fs.fed.us/database/feis/plants/cactus/opuhum/all.html]] Accessed: February 13, 2016</ref>. It is an important food for pocket gophers (Myers and Vaughan 1964). It is a host to the invasive cactus moth (''Cactoblastis cactorum'') (Jezorek and Stiling 2012). The large pads provides nesting to bobwhite quail<ref name="illinois">[[http://www.illinoiswildflowers.info/prairie/plantx/prickly_pearx.htm]]Illinois Wildflowers. Accessed: February 15, 2016</ref>.
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The fruit is eaten and dispersed by birds, rabbits, woodrats, prairie-dogs, mice, ground squirrels, and white-tailed deer <ref name="fs">[[http://www.fs.fed.us/database/feis/plants/cactus/opuhum/all.html]] Accessed: February 13, 2016</ref>.
  
 
===Seed bank and germination===
 
===Seed bank and germination===

Revision as of 09:34, 15 February 2016

Opuntia humifusa
Opun humi.jpg
Photo by Wayne Matchett, SpaceCoastWildflowers.com
Scientific classification
Kingdom: Plantae
Division: Magnoliophyta - Flowering plants
Class: Magnoliopsida – Dicotyledons
Order: Caryophyllales
Family: Cactaceae
Genus: Opuntia
Species: O. humifusa
Binomial name
Opuntia humifusa
(Raf.) Raf.
Opun humi dist.jpg
Natural range of Opuntia humifusa from USDA NRCS Plants Database.

Common names: devil's-tongue, eastern prickly pear

Taxonomic notes

Description

A description of Opuntia humifusa is provided in The Flora of North America.

Distribution

It is the only cactus to be widespread in the eastern United States [1]. It is found in southern Canada as well as the eastern United States (Goldstein and Nobel 1994).

Ecology

Habitat

Opuntia humifusa can occur in upland longleaf pines, sand dunes, Pinus clausa scrubs, open sand flats, sandhills, and pine/oak scrubs. It has been found in disturbed areas such as loblolly tree farms and roadside depressions. Associated species include Lyonia ferruginea, Lyonia lucida, Serenoa repens, Quercus geminata, Q. chapmanii, Persea humilis, Ceratiola, Osmanthus megacarpus, Rhynchospora megalocarpa, Galactia elliottii, and Smilax auriculata (FSU Herbarium).

It occurs in southern Canada, where average nighttime temperatures can reach -4 degrees Celsius. In order to prevent intracellular freeze dehydration and ice formation, individuals have an accumulation of sugars and mannitol in their cells (Goldstein and Nobel 1994).

Phenology

It has been observed flowering April through July and fruiting January, May and December (FSU Herbarium).

Root stocks and detached cladodes can propagate vegetatively for up to 12 months after detachment (Nobel and Castaneda 1998).

Seed dispersal

The fruit is eaten and dispersed by birds, rabbits, woodrats, prairie-dogs, mice, ground squirrels, and white-tailed deer [2].

Seed bank and germination

Fire ecology

Pollination

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

Apidae: Apis mellifera, Bombus impatiens, B. pennsylvanicus, Mellisodes communis

Halictidae: Agapostemon splendens, Augochlorella aurata, Augochloropsis sumptuosa, Halictus poeyi, Lasioglossum nymphalis, L. puteulanum

Megachilidae: Dianthidium floridiense, Lithurgus gibbosus, Megachile brevis pseudobrevis, M. policaris

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, Michael Blaker, M. Borgman, James R. Burkhaulter, George R. Cooley, R.J. Eaton, Patricia Elliott, J. Kevin England, Robert K. Godfrey, Darren Jackson, Ed Keppner, Lisa Keppner, Andrew McAllister, Sidney McDaniel, K.M. Meyer, James D. Ray Jr., Erik Robinson, L. Rosen, C.E. Smith, A. Townesmith, Kenneth A. Wilson, Carroll E. Wood Jr.. States and Counties: Alabama: Dale. Florida: Alabama, Escambia, Franklin, Gadsden, Hernando, Jackson, Lafayette, Leon, Liberty, Orange, Putnam, Seminole, Walton, Wakulla, Washington. Compiled by Tall Timbers Research Station and Land Conservancy.

  1. [[1]] Lady Bird Johnson Wildflower Center. Accessed: February 12, 2016
  2. [[2]] Accessed: February 13, 2016