Xyris elliottii

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Xyris elliottii
Xyri elli.jpg
Photo by Shirley Denton (Copyrighted, use by photographer’s permission only), Nature Photography by Shirley Denton
Scientific classification
Kingdom: Plantae
Division: Magnoliophyta - Flowering plants
Class: Liliopsida – Monocotyledons
Order: Commelinales
Family: Xyridaceae
Genus: Xyris
Species: X. elliottii
Binomial name
Xyris elliottii
Chapm.
XYRI ELLI dist.jpg
Natural range of Xyris elliottii from USDA NRCS Plants Database.

Common name: Elliott's yelloweyed grass

Taxonomic notes

Description

A description of Xyris elliottii is provided in The Flora of North America.

Distribution

Ecology

Habitat

Xyris elliotti can occur in floating islands of depression swamps, lake shores, wet pine flatwoods, pine-palmetto flats, dune swales, flatwoods bogs, moist pine barrens, Hypericum marshes, cypress domes, sinkhole lake shores, dune hollows, grass-sedge bogs, cypress-gum swamps, hardwood hammocks, and seepage slopes. It has occurred in disturbed areas such as roadside depressions, drying borrow pit ponds, bulldozed flatwoods, and powerline corridors (FSU Herbarium). Soils types include peaty soil, loamy sand, peaty sand, Mandarin (Typic Haplhumods), Clarendon (Plinthaquic Paleudults), and Pineda and Riviera (Arenic Glossaqualfs) (FSU Herbarium).

Associated species include Decodon, Drosera, Polygala, Spartina patens, Centella asiatica, Lycopodium, Syngonanthus flavidulus, Panicum hemitomon, Scleria reticularis, Rhynchospora, Andropogon, Juncus, Amphicarpum muhlenbergianum, Lycopodium appressum, Lachnocaulon engleri, Syngonanthus flavidulus, Sarracenia flava, Polygala, Rhexia, Rhynchospora, Platanthera nivea, Panicum erectifolia, Aster eryngifolius, Rhexia lutea, Polygala chapmanii, Xyris drummondii, X. fimbriata, Scleria reticularis and Panicum tenerum (FSU Herbarium).

Phenology

Flowers and fruits April through September (FSU Herbarium).

Seed dispersal

Seed bank and germination

Fire ecology

Urban sprawl and fire suppression have caused habitat depletion locally, state-wide, nation-wide, and around the world. Fortunately, there have been pineland communities that have been maintain by natural-set fires. Carr (2010) and her colleagues presented a classification and description of these pineland communities creating comprehensive vegetation surveys for each community type. Within the peninsula savanna, a wetland community type described by Carr (2010), Xyris elliottii occurs with the ground cover vegetation and is one of the indicator species. Peninsula savannas occur in the Coastal Plain Coastal Lowlands where there are high water tables and where seasonal inundation is common. The soil type is sandier and is higher in organic matter with a subsoil that includes low clay and silt. [1].

Pollination

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

Apidae: Apis mellifera, Bombus impatiens

Colletidae: Colletes distinctus

Halictidae: Augochloropsis sumptuosa, Lasioglossum coreopsis, L. nymphalis

Megachilidae: Megachile brevis pseudobrevis

Use by animals

Diseases and parasites

Conservation and Management

The primary threats to Xyris elliottii is mainly mismanagement of the habitat where it thrives. Mismanagement practices include fire suppression, conversion to agriculture, monoculture plantations (such as Pinus elliottii), highway development, and urban sprawl. If this species were to become threatened or endangered, practicing ideal land management by protecting its habitat would help conserve the species[2].

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: November 2015. Collectors: Loran C. Anderson, W.W. Baker, Edwin L. Bridges, Paul M. Cassen, A.H. Curtiss, Angus Gholson Jr., Robert K. Godfrey, Ann F. Johnson, Ed Keppner, Lisa Keppner, Mabel Kral, Robert Kral, O. Lakela, S.W. Leonard, William Lindsey, K. MacClendon, T. MacClendon, Sidney McDaniel, Gil Nelson, Steve Orzell, P.L. Redfearn Jr. , Grady W. Reinert, Jean W. Wooten. States and Counties: Florida: Bay, Bradford, Brevard, Calhoun, Charlotte, Citrus, Clay, Collier, Escambia, Franklin, Gilchrist, Gulf, Hernando, Hillsborough, Indian River, Jackson, Jefferson, Lafayette, Lake, Lee, Leon, Levy, Liberty, Marion, Martin, Okaloosa, Orange, Osceola, Palm Beach, Pasco, Polk, Putnam, Santa Rosa, Sarasota, St. Lucie, St. Johns, Sumter, Taylor, Volusia, Wakulla, Walton, Washington. Countries: Belize.Compiled by Tall Timbers Research Station and Land Conservancy.

  1. Carr, Susan C., Kevin M. Robertson, and Robert K. Peet (2010). “A Vegetation Classification of Fire-Dependent Pinelands of Florida.” Castanea 75(2):153-189.
  2. [[1]]IUCN Red List. Accessed: March 15, 2016.