| 词条 | Fragaria cascadensis |
| 释义 |
|image = |image_caption = |genus = Fragaria |species = cascadensis |authority = K.E.Hummer }} Fragaria cascadensis, is a species of strawberry (Fragaria), found in the Cascades Mountains described in 2012. The vernacular name "Cascade strawberry" was suggested by the describing author. DescriptionIt is a perennial, with the typical white flowers of its genus. It differs from other strawberry species by having hairs on the upper side of its leaves, as opposed to the underside or not present at all and a different middle leaflet. It begins growing after snow melt ( May or early June in that region), flowers are born around early July and fruit ripens during August for about 2 weeks.[1] The fruits are about 1 cm wide, with soft flesh and a white interior.[2] DistributionF. cascadensis grows along the western slopes of the Oregon Cascades Mountains from the Columbia River south to Crater Lake, at elevations of about 3,000 feet up to tree line. It grows in sandy-clay loam soil of volcanic origin located in forest clearings and open alpine meadows.[1]HistoryF. cascadensis was first described in 2012 by Kim E. Hummer of the USDA ARS National Clonal Germplasm Repository in Corvallis, Oregon. The holotype plant was collected from a disturbed area along a road in Lane County Oregon. The holotype plant was in a south facing area growing in association with Pseudotsuga menziesii. The species was named Fragaria cascadensis in allusion to the Oregon Cascade Mountains.[3]CultivationThis species is not yet in cultivation.[2] Commercial valueAlthough this species is a decaploid, unlike the octoploid common strawberry, it can be hybridized with Fragaria iturupensis, Fragaria × vescana,[1] Fragaria × Comarum hybrids or Fragaria × bringhurstii (although with chromosome doubling) {{citation needed|date=December 2013}} should produce fertile offspring, which may reveal new flavors or genetic disease resistance.[1] PloidyThis species is a decaploid. See Fragaria. References1. ^1 2 3 {{cite web|last=Durham|first=Sharon|title=New Strawberry Species Found in Oregon|url=http://www.ars.usda.gov/is/AR/archive/jul13/strawberry0713.htm?pf=1|publisher=United States Department of Agriculture|accessdate=2013-12-12}} {{fragaria}}{{Taxonbar|from=Q15975161}}2. ^1 {{cite news|last=Diep|first=Francie|title=New Wild Strawberry Species Discovered|url=http://www.popsci.com/science/article/2013-07/new-wild-strawberry-species-discovered-oregon-mountains|accessdate=December 12, 2013|newspaper=Popular Science|date=December 7, 2013}} 3. ^{{cite journal |last1=Hummer |first1=K. E. |year=2012 |title=A new species of Fragaria (Rosaceae) from Oregon |journal=Journal of the Botanical Research Institute of Texas |pages=9–15 |url=https://naldc.nal.usda.gov/download/57556/PDF}} 4 : Berries|Flora of Oregon|Fragaria|Plants described in 2012 |
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