Английская Википедия:Astragalus applegatei
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Astragalus applegatei is a rare species of milkvetch known by the common name Applegate's milkvetch.[1] Its scientific name is also spelt Astragalus applegatii.[2] It is endemic to Klamath County, Oregon, where it is known from three populations, one of which is made up of only three plants.[1] Much of the remaining habitat is seriously threatened by development, introduced plant species, and other forces.[1] This is a federally listed endangered species of the United States.
The plant is a perennial herb with clustered or spreading prostrate stems growing from a taproot. It may form mats nearly a metre wide and up to 40 cm tall. The leaves are up to 8 cm long and are each made up of several pairs of leaflets 1 or 2 cm long. The inflorescence is a raceme of nodding flowers. The flower has a cuplike, toothed calyx of sepals coated in black hairs. The corolla is whitish to lavender with purple tips on the petals. The fruit is a purple-mottled legume pod roughly 1 cm long.[3]
The native habitat of the plant is a seasonally wet floodplain with alkali soils, part of the Klamath Basin.[4]
The largest of the three populations is on land which is partially owned and protected by The Nature Conservancy, but the other part is vulnerable to development.[1] The second and third populations are very small and may not survive as they become inbred.[1] There was once a fourth population, but it was destroyed when its habitat was made into a grocery store and a car dealership.[1]
References
External links
Шаблон:Taxonbar Шаблон:Authority control
- Английская Википедия
- Astragalus
- Flora of Oregon
- Klamath County, Oregon
- Endemic flora of the United States
- Endangered flora of the United States
- Plants described in 1936
- Endemic flora of Oregon
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