FWS Focus

Overview

Characteristics
Overview

Florida pineland crabgrass is also known as Everglades grass or twospike crabgrass, and only occurs in the Everglades in Miami-Dade and Monroe counties. This blue-green perennial clumpgrass grows in pine rocklands, marl prairie, cypress habitat, and transitional habitats between them. It reaches 3 feet tall in clumps 3 feet wide with densely hairy leaves up to 5 inches long. 

Threats

The primary threats to the Florida pineland crabgrass are habitat destruction, fragmentation, and modification due to development, fire suppression, invasive plants, and sea level rise. Pine Rocklands are a globally imperiled ecosystem.

Scientific Name

Digitaria pauciflora
Common Name
Florida pineland crabgrass
FWS Category
Flowering Plants
Kingdom

Location in Taxonomic Tree

Identification Numbers

TSN:

Characteristics

Characteristic category

Habitat

Characteristics
Habitat

The Florida pineland crabgrass grows within the seasonally flooded transitional areas, or ecotones, of pine rocklands, marl prairies, and cypress habitat.

Characteristic category

Life Cycle

Characteristics
Life Span

Florida pineland crabgrass produces flowers and fruits from summer to late fall on both new and older growth.

Reproduction

Florida pineland crabgrass can reproduce sexually, and clonally through rhizomes and vegetative spread.

Characteristic category

Physical Characteristics

Characteristics
Size & Shape

The Florida pineland crabgrass is a distinctly blue-green clumping perennial grass that grows up to 3 feet tall and up to 3 feet wide with densely hairy 5 inches-long leaves. Plants can also form short rhizomes. The distinct color combined with the abundance of hairs makes the plants stand out from all surrounding vegetation, almost glowing when the light hits them. Mature plants typically have a large basal tuft of bright, blue-green leaves with erect to drooping flowering stems with exposed internodes that are typically reddish. Very small dull green flowers are borne along paired spikes on the ends of the flowering stems, with usually only a few flower clusters forming per clump of grass.

Geography

Characteristics
Range

Florida pineland crabgrass can only be found within the boundaries of Everglades National Park and Big Cypress National Preserve. The historical range of Florida pineland crabgrass includes southern Florida, including central and southern Miami-Dade County along the Miami Rock Ridge, from southern Miami to Long Pine Key region of Everglades National Park and into Big Cypress National Preserve in Monroe County.

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