워싱턴야자

 

종려(1)(종려, 당종려, 워싱턴야자의 구별)

https://daehyo49.tistory.com/7811216

 

 

학명 : Washingtonia filifera (Linden ex André) H. Wendl.

분류 : Arecaceae

국표식 등재명 : 워싱턴야자

다른 표기 : 워싱톤야자

 

 

 

사진 : 2023.01.18 세종수목원

 

 

 

잎 열편 가장자리에 기다란 실 모양의 섬유가 발달한다.

 

 

 

 

 

 

 

 

아래 : 2023.01.26 물향기수목원

 

 

 

 

 

 

 

 

 

 

국표식 등재종

Washingtonia robusta H. Wendl. 로부스타워싱턴야자

Washingtonia filifera (Linden ex André) H. Wendl. 워싱턴야자

 

FNA

 

Washingtonia H. Wendland, Bot. Zeitung (Berlin). 37: 68, 148. 1879.

[name conserved]

Fan palm, palmier evantail de Californie [fFor George Washington, 1732--1799, American patriot and first president of the United States]

 

Neowashingtonia Sudworth

 

Plants tree palms. Stems solitary, erect, tall, massive in one species (more than 100 cm diam.)(100--150 cm diam.), partly or completely covered with old leaf bases and marcescent(떨어지지 않고 마르는) dry leaves forming conspicuous skirt around trunk. Leaves: sheath fibers soft; petiole split at base, conspicuously armed with teeth along margins, sometimes unarmed in tall plants; abaxial hastula absent; adaxial hastula irregularly shaped, margin becoming tattered(넝마의), fibrous; costa prominent; blade costapalmate; plication(주름) induplicate; segments lanceolate, basally connate, bearing fibers between segments; apices 2-cleft or irregularly tattered into fibers. Inflorescences axillary within crown of leaves, paniculate, arching well beyond leaves, with 2 orders of branching; prophyll leathery; rachis bracts very conspicuous, tubular at base, distally flattened and leathery, long; rachillae glabrous. Flowers bisexual, borne singly along rachillae, short- pedicellate; perianth 2-seriate; calyx cupulate, 3-lobed, apices and margins irregular; petals 3, long, chaffy, basally connate into tube; stamens 6, adnate briefly to petals; pistils 3, distinct basally, glabrous; styles connate, slender, long; stigma inconspicuous. Fruits drupes, blackish, ellipsoid; exocarp smooth; mesocarp thin, fleshy; endocarp thin. Seeds ellipsoid; endosperm homogeneous; embryo basal; eophyll undivided, lanceolate. n = 18.

 

어휘

hastula :   a small flange of tissue found on the abaxial and/ or adaxial face where the lamina joins the petiole in most palmate and costapalmate leaves (specialist term used in Palmae)  

 

Species 2 (2 in the flora): w North America, nw Mexico.

 

The two species are easy to distinguish when cultivated side by side, but they are sometimes difficult to identify from herbarium specimens. Analysis of flavonoids (S. Zona and R. Scogin 1988) can reliably distinguish the two species.

 

SELECTED REFERENCES

 

Bailey, L. H. 1936. Washingtonia. Gentes Herb. 4: 51--82. Zona, S. and R. Scogin. 1988. Flavonoid aglycones and C-glycosides of the palm genus Washingtonia (Arecaceae: Coryphoideae). SouthW. Naturalist. 33: 498.

 

 

 

 

 

1 Trunk greater than 100 cm diam. 1 Washingtonia filifera

+ Trunk less than 80 cm diam. 2 Washingtonia robusta

 

 

 

 

워싱턴야자와 로부스타워싱턴야자 구별

The Washingtonia genus consists of two species; the Robusta (Mexican Fan Palm) and the Filifera (California Fan Palm). While similar in many ways, there are some noticeable differences between the two. Here are some key features of the Washingtonia Robusta vs Filifera.

 

Robusta (Mexican Fan Palm)

Taller and more slender trunk.

Fronds have a shiny appearance with a deep green color.

Not as cold hardy as the Filifera

More moisture tolerant.

 

Filifera (California Fan Palm)

Shorter, thicker trunk

Fronds are more deeply divided and have more of a dull, grayish appearance

More cold hardy than the Robusta

Prefers drier, more arid climates

 

https://zonehardypalms.com/the-washingtonia-robusta-vs-filifera-what-are-the-differences

 

 

 

 

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아래는 워싱턴야자 엽병  펌 사진

 

 

 

 

출처 

https://www.riomoros.com/2011/12/la-palmera-de-california-washingtonia.html

 

 

 

 

 

사진 출처

https://www.pikist.com/free-photo-xclxb