Aristida chaseae is a rare species of grass known by the common name Chase's threeawn. It is endemic to Puerto Rico, where it is known from two locations in the Cabo Rojo National Wildlife Refuge and the Sierra Bermeja.[1] It is a federally listed endangered species of the United States. It cannot compete with introduced species of grasses, such as Brachiaria subquadripara, which are invading its habitat.[1]
This is a perennial grass producing a tuft of stems up to half a meter high or a bit taller. Plants occurring in the deep soils of Cabo Rojo tend to be more robust than those growing in the poorer soils of the Sierra Bermeja.[2] Cabo Rojo plants occur in coastal grassland habitat, and those in the Sierra grow in acidic clay soils with many rocky outcrops.[2] Development of the Sierra Bermeja is a potential threat for the grass and many other endemic plant species.[2]
Aristida chaseae is a rare species of grass known by the common name Chase's threeawn. It is endemic to Puerto Rico, where it is known from two locations in the Cabo Rojo National Wildlife Refuge and the Sierra Bermeja. It is a federally listed endangered species of the United States. It cannot compete with introduced species of grasses, such as Brachiaria subquadripara, which are invading its habitat.
This is a perennial grass producing a tuft of stems up to half a meter high or a bit taller. Plants occurring in the deep soils of Cabo Rojo tend to be more robust than those growing in the poorer soils of the Sierra Bermeja. Cabo Rojo plants occur in coastal grassland habitat, and those in the Sierra grow in acidic clay soils with many rocky outcrops. Development of the Sierra Bermeja is a potential threat for the grass and many other endemic plant species.
Aristida chaseae, es una rara especie de gramínea perteneciente a la familia de las poáceas. Es originaria de Puerto Rico, donde se localiza en dos lugares: el Refugio nacional de vida silvestre de Cabo Rojo y la Sierra Bermeja.[1] Se encuentra en una lista federal de especies en peligro de extinción de los Estados Unidos. No puede competir con otras especies introducidas de hierbas, tales como Brachiaria subquadripara, que están invadiendo su hábitat.[1]
Es una hierba perennifolia que produce una mata de tallos de hasta medio metro de altura o un poco más alto. Las plantas que se producen en los suelos profundos de Cabo Rojo tienden a ser más robustas que los que crecen en los suelos más pobres de la Sierra Bermeja.[2] Las plantas de Cabo Rojo se producen en hábitat de pastizales decosta, y los de la Sierra crecen en suelos arcillosos ácidos con muchos afloramientos rocosos.[2] El desarrollo humano de la Sierra Bermeja es una amenaza potencial para la hierba y muchas otras especies de plantas endémicas.[2]
Aristida chaseae fue descrita por Albert Spear Hitchcock y publicado en Contributions from the United States National Herbarium 22(7): 575. 1924.[3][4]
El nombre del género proviene del latín Arista o del griego Aristos (cerdas, o aristas del maíz).
chaseae: epíteto
Aristida chaseae, es una rara especie de gramínea perteneciente a la familia de las poáceas. Es originaria de Puerto Rico, donde se localiza en dos lugares: el Refugio nacional de vida silvestre de Cabo Rojo y la Sierra Bermeja. Se encuentra en una lista federal de especies en peligro de extinción de los Estados Unidos. No puede competir con otras especies introducidas de hierbas, tales como Brachiaria subquadripara, que están invadiendo su hábitat.
Aristida chaseae là một loài thực vật có hoa trong họ Hòa thảo. Loài này được Hitchc. mô tả khoa học đầu tiên năm 1924.[1]
Aristida chaseae là một loài thực vật có hoa trong họ Hòa thảo. Loài này được Hitchc. mô tả khoa học đầu tiên năm 1924.