Eragrostis refracta

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Eragrostis refracta
Erag refr.jpg
Photo and permission granted by George Rogers and John Bradford, Florida Grasses.org
Scientific classification
Kingdom: Plantae
Division: Magnoliophyta - Flowering plants
Class: Liliopsida – Monocotyledons
Order: Poales
Family: Poaceae ⁄ Gramineae
Genus: Eragrostis
Species: E. refracta
Binomial name
Eragrostis refracta
(Muhl.) Scribn.
ERAG REFR dist.jpg
Natural range of Eragrostis refracta from USDA NRCS Plants Database.

Common name: Coastal lovegrass

Taxonomic notes

Synonym: Eragrostis virginica (Zuccagni) Steudel

Description

Weakley states that some authors have taken up the older name E. virginica, as a synonym for E. refracta, but the application of synonymy is uncertain.[1]

Generally, for the Eragrostis genus, they are "annuals or perennials from short rhizomes or hardened bases. Glumes similar, shorter than lowest lemma. Florets more than 2. Lemmas 3-nerved, paleas persistent, ciliate."[2]

Specifically, for Eragrostis refracta species, they are "cespitose perennial from hardened base; culms 3-10 dm tall, nodes and internodes glabrous. Leaves primarily low cauline; blades elongate, to 2.5 dm long, 1.5-4 mm wide, pilose above, glabrous beneath, margins scaberulous; sheaths glabrous; ligules membranous, 0.1-0.2 mm long, long trichomes in throat. Panicle loose, open ½-3/4 height of the plant, ½ to as broad as long; branches flexuous, scaberulous. Spikelets with dark margins and light centers, 4-22 flowered, lateral spikelets longer than pedicels, appressed, 8-13 mm long, 1.5-1.8 mm wide. Glumes 1-nerved, scabrous keeled, acuminate, 1st glume 0,8-1.3 mm long, 2nd glume 1.5-2 mm long; lemmas scabrous keeled, acuminate, 1.5-1.8 mm long; paleas 1-1.5 mm long. Grain reddish, oblong, 0.5-0.7 mm long."[2]

Distribution

It is distributed from Deleware south to Florida, and west to Texas.[1]

Ecology

Habitat

Is found in open longleaf pine woods, open woodlands.[3] and in pineland, savannas, bogs and seeds, and marshes.[1] Is also found along the roadside edges. Requires high light levels. Is associated with areas with dry sand or dry, loamy sand soil types.[3]

Associated species include Composites, legumes, and grasses. Also Eriocaulon lineare and Lachnocaulon minus.[3]

Phenology

Has been observed flowering and fruiting from September to November.[3]

Conservation and management

Cultivation and restoration

Photo Gallery

References and notes

  1. 1.0 1.1 1.2 Weakley, Alan S. Flora of the Southern and Mid-Atlantic States: Working Draft of 21 May 2015. University of North Carolina Herbarium (NCU). PDF. 406.
  2. 2.0 2.1 Radford, Albert E., Harry E. Ahles, and C. Ritchie Bell. Manual of the Vascular Flora of the Carolinas. 1964, 1968. The University of North Carolina Press. 66-71. Print.
  3. 3.0 3.1 3.2 3.3 Florida State University Robert K. Godfrey Herbarium database. URL: http://herbarium.bio.fsu.edu. Last accessed: June 2014. Collectors: Loran C. Anderson, J. M. Kane, Cindi Stewart, - MacClendons, and Annie Schmidt. States and Counties: Florida: Gadsden, Jackson, Liberty, and Suwannee. Georgia: Thomas.