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Exocarpos luteolus is a rare species of flowering plant in the sandalwood family known by the common names leafy ballart or heau. It is endemic to Hawaii, where it is known only from the island of Kauai.[1] There are eight populations remaining, for a total global population of only 39 individuals.[2] The plant was federally listed as an endangered species of the United States in 1994.[3]
This plant is a shrub growing one half to two meters tall. There are two types of leaves, lance-shaped to oval leaf blades up to 8 centimeters long and smaller, reduced leaves that are like scales. Some plants have only scale-like leaves and appear leafless at first glance. The flower has six greenish petals each about a millimeter long. The fruit is a yellow drupe between 1 and 2 centimeters long.[1][3]
This rare plant grows in several types of habitat, including bogs, open ridges, and closed wet forests.[3] Plants sharing the forested habitat types may include ohia (Metrosideros polymorpha), uluhe (Dicranopteris linearis), koa (Acacia koa), kauila (Alphitonia ponderosa), and poʻola nui (Bidens cosmoides). Plants in its bog habitat may include pa iniu (Astelia waialealae), and kanawao (Broussaisia arguta).[2]
This plant is nearing extinction because of a number of threats, mainly habitat destruction and degradation from feral goats and pigs. Rats consume the seeds. Many invasive plant species are present in the habitat, including prickly blackberry (Rubus argutus), banana poka (Passiflora tarminiana), Santa Barbara daisy (Erigeron karvinskianus) paii iha (Christella dentata), lantana (Lantana camara), and molasses grass (Melinis minutiflora).[2]
Exocarpos luteolus is a rare species of flowering plant in the sandalwood family known by the common names leafy ballart or heau. It is endemic to Hawaii, where it is known only from the island of Kauai. There are eight populations remaining, for a total global population of only 39 individuals. The plant was federally listed as an endangered species of the United States in 1994.
This plant is a shrub growing one half to two meters tall. There are two types of leaves, lance-shaped to oval leaf blades up to 8 centimeters long and smaller, reduced leaves that are like scales. Some plants have only scale-like leaves and appear leafless at first glance. The flower has six greenish petals each about a millimeter long. The fruit is a yellow drupe between 1 and 2 centimeters long.
This rare plant grows in several types of habitat, including bogs, open ridges, and closed wet forests. Plants sharing the forested habitat types may include ohia (Metrosideros polymorpha), uluhe (Dicranopteris linearis), koa (Acacia koa), kauila (Alphitonia ponderosa), and poʻola nui (Bidens cosmoides). Plants in its bog habitat may include pa iniu (Astelia waialealae), and kanawao (Broussaisia arguta).
This plant is nearing extinction because of a number of threats, mainly habitat destruction and degradation from feral goats and pigs. Rats consume the seeds. Many invasive plant species are present in the habitat, including prickly blackberry (Rubus argutus), banana poka (Passiflora tarminiana), Santa Barbara daisy (Erigeron karvinskianus) paii iha (Christella dentata), lantana (Lantana camara), and molasses grass (Melinis minutiflora).
Exocarpos luteolus est une espèce du genre Exocarpos, famille des Santalaceae.
Cette plante est un arbuste qui mesure entre 0.5 et 2 mètres de haut. Il existe deux types de feuilles, les limbes des feuilles lancéolées à ovales jusqu'à 8 centimètres de long et les feuilles plus petites et réduites qui ressemblent à des écailles. Certaines plantes ont seulement des feuilles ressemblant à des écailles et apparaissent sans feuilles à première vue.
La fleur a six pétales verdâtres d'environ un millimètre chacun.
Le fruit est une drupe jaune de 1 à 2 cm de long[1],[2].
Exocarpos luteolus est endémique de Hawaï, de l'île de Kauai[1]. Il reste huit populations, pour une population mondiale totale de seulement 39 individus[3]. La plante est classée comme une espèce menacée pour les États-Unis en 1994[2].
Cette plante rare pousse dans plusieurs types d'habitat, y compris les tourbières, les crêtes ouvertes et les forêts humides fermées[2]. Les plantes partageant les types d'habitats forestiers sont Metrosideros polymorpha, Dicranopteris linearis, Acacia koa, Alphitonia ponderosa et Bidens cosmoides. Les plantes dans son habitat de tourbière peuvent être Astelia waialealae et Broussaisia arguta[3].
Cette plante est en voie d'extinction en raison d'un certain nombre de menaces, principalement la destruction de l'habitat et la dégradation des chèvres et des cochons sauvages. Les rats mangent les graines. De nombreuses espèces végétales envahissantes sont présentes dans l'habitat, surtout Rubus argutus, Passiflora tarminiana, Erigeron karvinskianus, Christella dentata, Lantana camara ou Melinis minutiflora[3].
Exocarpos luteolus est une espèce du genre Exocarpos, famille des Santalaceae.
Exocarpos luteolus é uma espécie rara de planta com flor da família Santalaceae. É endémica no Havaí, onde é conhecida apenas na ilha de Kauai.[1] Existem oito populações remanescentes, para uma população global total de apenas 39 indivíduos.[2] A planta foi listada pelo governo federal como uma espécie em extinção dos Estados Unidos em 1994.[3]
Esta planta está quase extinta devido a uma série de ameaças, principalmente destruição de habitats e degradação devido a cabras e porcos selvagens. Os ratos também consomem as sementes. Muitas espécies de plantas invasoras estão presentes no habitat, incluindo amora-preta (Rubus argutus), banana-poka (Passiflora tarminiana), margarida de Santa Bárbara (Erigeron karvinskianus), paii iha (Christella dentata), lantana (Lantana camara) e melaço (Melinis minutiflora).[2]
Exocarpos luteolus é uma espécie rara de planta com flor da família Santalaceae. É endémica no Havaí, onde é conhecida apenas na ilha de Kauai. Existem oito populações remanescentes, para uma população global total de apenas 39 indivíduos. A planta foi listada pelo governo federal como uma espécie em extinção dos Estados Unidos em 1994.
Esta planta está quase extinta devido a uma série de ameaças, principalmente destruição de habitats e degradação devido a cabras e porcos selvagens. Os ratos também consomem as sementes. Muitas espécies de plantas invasoras estão presentes no habitat, incluindo amora-preta (Rubus argutus), banana-poka (Passiflora tarminiana), margarida de Santa Bárbara (Erigeron karvinskianus), paii iha (Christella dentata), lantana (Lantana camara) e melaço (Melinis minutiflora).
Exocarpos luteolus là một loài thực vật có hoa trong họ Santalaceae. Loài này được C.N.Forbes mô tả khoa học đầu tiên năm 1910.[1]
Bài viết liên quan đến họ Đàn hương này vẫn còn sơ khai. Bạn có thể giúp Wikipedia bằng cách mở rộng nội dung để bài được hoàn chỉnh hơn. Exocarpos luteolus là một loài thực vật có hoa trong họ Santalaceae. Loài này được C.N.Forbes mô tả khoa học đầu tiên năm 1910.
