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Plant Profile

Chase's Three-awn Grass (Aristida chaseae)

Photo Credit: Omar Monsegur

Global Rank: G1 - Critically Imperiled
Legal Status: Federally Endangered
Family: Poaceae
State: PR
Nature Serve ID: 138341
Lifeform: Graminoid
Date Inducted in National Collection:

Description:

Aristida chaseae is a rare species of perennial grass with densely tufted, wide-spreading culms which may reach from 50 to 60 cm to length. The leaf blades are involute, 2 to 3 mm wide and 10 to 15 mm long. The panicles are narrow and may be from 10 to 15 cm in length. The giumes are equal, 10 to 13 mm long and aciminate or awn-tipped. (Fish and Wildlife Srvc. Federal Register 1993.)

Where is Chase's Three-awn Grass (Aristida chaseae) located in the wild?

Habitat:

Aristida chaseae can be found in coastal grassland areas of Puerto Rico, favoring dry, stoney, sandy soil.

Distribution:

A. chaseae is endemic to Puerto Rico, where it is known from two locations in the Cabo Rojo National Wildlife Refuge and the Sierra Bermeja. (Fish and Wildlife Srvc. Federal Register 1993.)

States & Provinces:

Chase's Three-awn Grass can be found in Puerto Rico

Which CPC Partners conserve Chase's Three-awn Grass (Aristida chaseae)?

Fairchild Tropical Botanic Garden

Not Sponsored

Assigned 06/09/17

CPC's Plant Sponsorship Program provides long term stewardship of rare plants in our National Collection. We are so grateful for all our donors who have made the Plant Sponsorship Program so successful. We are in the process of acknowledging all our wonderful plant sponsorship donors on our website. This is a work in progress and will be updated regularly.

Conservation Actions

Nature Serve Biotics

05/02/2017

Limited habitat.

01/01/2010

exotic grasses clearing grazing fire

01/01/2010

large colony found recently ca 2000 individuals in 4 populations most on private land - threats high