Lactuca graminifolia

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Lactuca graminifolia
Lact gram.jpg
Photo by Wayne Matchett,SpaceCoastWildflowers.com
Scientific classification
Kingdom: Plantae
Division: Magnoliophyta - Flowering plants
Class: Magnoliopsida – Dicotyledons
Order: Asterales
Family: Asteraceae ⁄ Compositae
Genus: Lactuca
Species: L. graminifolia
Binomial name
Lactuca graminifolia
Michx.
LACT GRAM dist.jpg
Natural range of Lactuca graminifolia from USDA NRCS Plants Database.

Common name: grassleaf lettuce

Taxonomic notes

Description

A description of Lactuca graminifolia is provided in The Flora of North America. This species is abundant where found (FSU Herbarium).

Distribution

Ecology

Habitat

This species is found in pine flatwoods, evergreen scrub oak sand ridges, fallow fields, bordering swamps, and longleaf pine-wiregrass pinelands (FSU Herbarium). Also found in disturbed areas, Lactuca graminifolia has also been observed to grow along roadsides, near campgrounds, around parking compounds, and within moist, sphagnum-filled ditches (FSU Herbarium). It grows in dry, loamy sands as well as moist, grassy areas in open light conditions (FSU Herbarium).

Phenology

This species has been observed flowering from March through July and in October (FSU Herbarium). It has also been observed fruiting from May through June and in October (FSU Herbarium).

Seed dispersal

Seed bank and germination

Fire ecology

It is found in patches of degraded longleaf pine sandhill after burn and control (no burn) treatments.[1]

Pollination

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

Halictidae: Halictus poeyi

Megachilidae: Dianthidium floridiense

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: June 2014. Collectors: Loran C. Anderson, Lisa Keppner, Ed Keppner, Paul L. Redfearn, Jr., Robert K. Godfrey, Grady W. Reinert, Richard S. Mitchell, Gwynn W. Ramsey, H.L. Stripling, James R. Burkhalter, S.W. Leonard, L. Baltzell, D.B. Ward, D. Burch, S.G. Shelter, Kevin Oakes, R. Komarek, R.A. Norris, John B. Nelson, Travis MacClendon, and Karen MacClendon. States and Counties: Florida: Bay, CalhounColumbia, Dixie, Escambia, Franklin, Gadsden, Hernando, Jackson, Jefferson , Lake, Liberty, Leon, Levy, Madison, Marion, Okaloosa, Orange, Pasco, Polk, Taylor, and Wakulla. Georgia: Grady and Thomas.

  1. Heuberger, K. A. and F. E. Putz (2003). "Fire in the suburbs: ecological impacts of prescribed fire in small remnants of longleaf pine (Pinus palustris) sandhill." Restoration Ecology 11: 72-81.