Astragalus pycnostachyus A. Gray

Astragalus pycnostachyus (lat. Astragalus pycnostachyus) — paxlakimilər fəsiləsinin gəvən cinsinə aid bitki növü.

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Botaniki təsviri

Ekologiyası

Azərbaycanda yayılması

İstifadəsi

Ədəbiyyat

Astragalus pycnostachyus is a species of milkvetch known by the common name marsh milkvetch. It is endemic to the coastline of California, where it grows in wet saline habitat such as marshes.

Description

The marsh milkvetch is a perennial herb forming a thick erect clump of hollow, woolly stems 40 to 90 centimeters tall. The leaves are up to 15 centimeters long and are made up of many narrow oval-shaped leaflets. The inflorescence is a cluster of many whitish to greenish flowers each up to a centimeter in length.

The fruit is an inflated, papery legume pod with a small hooked beak at the tip.

Varieties

The species has two named varieties.

• Astragalus pycnostachyus var. lanosissimus — Ventura marsh milkvetch,^[2] now endemic to the Oxnard Plain in Ventura County, with only one population within Oxnard.^[3] The single extant population of this rare plant variety is now fenced and protected. The variety is treated as an endangered species on the federal level.^[4][3] Threats to its existence include near-total loss of habitat, infestation by weevils, cucumber mosaic virus infection, competition from non-native plants such as ice plant, and herbivory by the milk snail Otala lactea.
• Astragalus pycnostachyus var. pycnostachyus — marsh milk vetch, primarily found in the San Francisco Bay Area.^[5]

See also

• California coastal sage and chaparral ecoregion
• Coastal sage scrub

References

Astragalus pycnostachyus adalah spesies tumbuhan yang tergolong ke dalam famili Fabaceae. Spesies ini juga merupakan bagian dari ordo Fabales. Spesies Astragalus pycnostachyus sendiri merupakan bagian dari genus Astragalus. ^[1] Nama ilmiah dari spesies ini pertama kali diterbitkan oleh A.Gray.

Referensi

Astragalus pycnostachyus là một loài thực vật có hoa trong họ Đậu. Loài này được A.Gray miêu tả khoa học đầu tiên.^[1]

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Chú thích

Liên kết ngoài

• Phương tiện liên quan tới Astragalus pycnostachyus tại Wikimedia Commons
• Dữ liệu liên quan tới Astragalus pycnostachyus tại Wikispecies