로브스타워싱톤야자-Washingtonia robusta H. Wendl.

로브스타워싱톤야자

 

국가표준식물목록에는 필리페라워싱톤야자(

Washingtonia filifera (Linden ex Andre) H. Wendl.

)와

로브스타워싱톤야자(

Washingtonia robusta H. Wendl.

)두 종이 있지만 구분은 어렵고

 

• Washingtonia filifera (Lindl. ex André) H.Wendl. California Washingtonia, Northern Washingtonia, California fan palm, or Desert fan palm. Tree to 23 m tall; leaves large, with petiole up to 2 m long, and leaflets up to 2 m long. Inflorescence to 5 m long; flowers white; fruit oval. Southwestern USA, just into extreme northwest Mexico. Palms are often found at the base of mountains, hills and form around desert oasis in the southwest. They are used in landscaping, particularly in southern counties of California.
• Washingtonia robusta H.Wendl. Mexican Washingtonia or Southern Washingtonia. Tree to 25 m tall; leaves smaller, with petiole up to 1 m long, and leaflets up to 1 m long. Inflorescence to 3 m long; flowers pale orange-pink; fruit spherical. Northwest Mexico. (Teresa Ribeiro et al.).

 

petiole -잎자루(엽병), leaflets 작은 잎(겹잎의 한 조각),  Inflorescence 꽃차례  (화서),oval-타원형, spherical-둥근

 

 

과명	Arecaceae(야자나무과)	속명	Washingtonia(워싱톤야자속)
전체학명	Washingtonia robusta H. Wendl.	추천명	로브스타워싱톤야자
이명		외국명	Palm Mexican,Palm Thread,Thread

 

 

 

Washingtonia filifera (Linden ex Andre) H. Wendl.

W.filifera is the other species;it is native to California, Nevada and Arizona . Although it is much hardier than W. robusta, it too loses its leaves in our winters (even relatively mild ones, sometimes), and it is never successful because unlike W. robusta it will not survive very long if it loses its leaves frequently.It has been known to survive temperatures as low as -25°C/-12°F in very dry climates, but with wet winters and little summer heat it is nowhere near as hardy. one fellow in Oklahoma City was growing some; his venture seemed initially successful but even with all the summer heat the palms suffered after losing their leaves in the cold too often. Washingtonia filifera (filifera - Latin "thread-bearing"), with the common names California Fan Palm, Desert Fan Palm, Cotton palm, and Arizona Fan Palm. It is a palm native to southwestern North America between an elevation range of 100–1,200 metres (330–3,900 ft), at seeps , desert bajadas , and springs where underground water is continuously available. 필리페라워싱톤야자

Washingtonia robusta H. Wendl.

W. robusta, native to Baja California, is by far the most common species, since it grows faster from seed and is generally considered to be easier to grow. However, in the climate of the Pacific Northwest, it can always be relied upon to lose its leaves at temperatures around -6°C/21°F or sometimes a little higher. Fortunately though, a well established specimen will always bounce right back after being defoliated as long as it doesn't get too cold. But it will die outright at temperatures around -9°C/16°F in our climate (though, in eastern Washington where it is drier, it can tolerate somewhat colder temperatures). So there is really no place in the Pacific Northwest that is quite mild enough to grow it long term north of Curry County, Oregon. But people try it frequently anyhow, since it is very fast growing, easy to obtain cheaply, and fun to grow, and will look substantial for a few years until a hard freeze comes along. Washingtonia robusta (Mexican Fan Palm or Mexican Washingtonia) is a palm tree native to western Sonora and Baja California Sur in northwestern Mexico . It grows to 25 m (82 ft) tall, rarely up to 30 m (98 ft). The leaves have a petiole up to 1 m (3.3 ft) long, and a palmate fan of leaflets up to 1 m long. The inflorescence is up to 3 m (9.8 ft) long, with numerous small pale orange-pink flowers . The fruit is a spherical, blue-black drupe, 6–8 mm (0.24–0.31 in) diameter; it is edible, though thin-fleshed. 로부스타워싱톤야자

http://en.wikipedia.org/wiki/Washingtonia http://uk.ask.com/wiki/Washingtonia_filifera http://uk.ask.com/wiki/Washingtonia_robusta

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