| 词条 | Geum geniculatum |
| 释义 |
|status = G1 |status_system = TNC |genus = Geum |species = geniculatum |authority = Michx. }}Geum geniculatum is a species of flowering plant in the rose family known by the common name bent avens.[1] It is endemic to the southern Appalachian Mountains in the United States, where it occurs on only three mountains: Grandfather Mountain and Rich Mountain in North Carolina and Roan Mountain straddling the North Carolina-Tennessee border.[1][2]Geum geniculatum is a perennial herb growing 50 to 70 centimeters (20-28 inches) tall. The three-parted leaves are 1 to 1.5 centimeters (0.4-0.6 inches) long. The clustered flowers have white, pinkish, or greenish[3] petals. Flowering occurs in July and August.[1] The flowers are likely pollinated by bumblebees and honeybees.[3][4] This may be a relict species, limited in distribution to the peaks of three mountains where conditions are cool and wet enough for it to survive. It grows on moist boulder fields and streambanks.[3] It often grows in shady conditions in a thick herb layer with rhododendrons and other plants.[1] There are only four known populations of this species, but where it grows it may be locally abundant.[1] References1. ^1 2 3 Geum geniculatum. The Nature Conservancy. 2. ^Biota of North America Program 2014 county distribution map 3. ^1 2 Geum geniculatum. Center for Plant Conservation. 4. ^1 Flora of North America, Geum geniculatum Michaux, 1803. Bent avens External links
4 : Geum|Flora of North Carolina|Flora of Tennessee|Plants described in 1803 |
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