Rubus pascuus | |
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Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Eudicots |
Clade: | Rosids |
Order: | Rosales |
Family: | Rosaceae |
Genus: | Rubus |
Species: | R. pascuus |
Binomial name | |
Rubus pascuus | |
Synonyms [1] | |
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Rubus pascuus is an uncommon North American species of brambles in the rose family. It grows only in the United States, primarily in the Ozarks of Missouri and Arkansas but with scattered populations farther east in New Jersey, Maryland, Virginia, and the Carolinas. [2] [3]
The genetics of Rubus is extremely complex, so that it is difficult to decide on which groups should be recognized as species. There are many rare species with limited ranges such as this. Further study is suggested to clarify the taxonomy. [4]
Coarse, woody canes, often 2-5 m long and heavily armed with strong, flattened and sometimes recurved prickles. Differentiated into first-year stems, usually without flowers or fruit (primocanes) and 2nd-year stems with flowers and fruit (floricanes). Strong, recurved prickles also arm the underside of the leaves and the stems of the flowering/fruiting area (raceme). Stems covered by short, fine, grayish hairs (canescent).
Flower petals white to pale-pink. Fruits turn from green to red to dark purple or black as they ripen. Fruit breaks off with the tip of the stem inside (retaining the receptacle) like a typical blackberry, as opposed a Raspberry fruit which separates from the receptacle, leaving a little concave hole inside the fruit. Fruits are edible and taste like any other blackberry. [5]
Leaves mostly compound, consisting of 3 leaflets (trifoliate), the central leaflet on a short stalk (rachis), the side leaflets touching (sessile) the leaf stalk (petiole). Leaflets generally oval (ovate-oblong), the tips slightly tapering to a small peak (acute), the margins with tiny, irregular teeth (coarsely double-serrate). The side leaflets on the primocane occasionally slightly lobed. [6] The underside of the leaves are very light/bright grayish with little hairs (tomentose). The whitish underside of the leaves sets it apart from similar species with recurved prickles such as Rubus argutus.
Rubus is a large and diverse genus of flowering plants in the rose family, Rosaceae, subfamily Rosoideae, with over 1,350 species, commonly known as brambles.
The blackberry is an edible fruit produced by many species in the genus Rubus in the family Rosaceae, hybrids among these species within the subgenus Rubus, and hybrids between the subgenera Rubus and Idaeobatus. The taxonomy of blackberries has historically been confused because of hybridization and apomixis, so that species have often been grouped together and called species aggregates. For example, the entire subgenus Rubus has been called the Rubus fruticosus aggregate, although the species R. fruticosus is considered a synonym of R. plicatus.
Rubus spectabilis, the salmonberry, is a species of bramble in the rose family Rosaceae, native to the west coast of North America from west-central Alaska to California, inland as far as Idaho. Like many other species in the genus Rubus, the salmonberry plant bears edible fruit, typically yellow-orange or red in color, resembling raspberries in appearance.
Rubus caesius is a Eurasian species of dewberry, known as the European dewberry. Like other dewberries, it is a species of flowering plant in the rose family, related to the blackberry and raspberry. It is widely distributed across much of Europe and Asia from Ireland and Portugal as far east as Xinjiang Province in western China. It has also become sparingly naturalized in scattered locations in Argentina, Canada, and the United States.
Rubus saxatilis, or stone bramble, is a species of bramble widespread across Europe and Asia from Iceland and Spain east as far as China. It has also been found in Greenland.
Rubus pensilvanicus, known commonly as Pennsylvania blackberry, is a prickly bramble native to eastern and central North America from Newfoundland south to Georgia, west as far as Ontario, Minnesota, Nebraska, Missouri, and Arkansas. The species is also established as a naturalized plant in California.
Rubus cockburnianus, the white-stemmed bramble, is a species of flowering plant in the family Rosaceae. It is endemic to China. It was named by the botanist William Hemsley to honour the Cockburn family.
Rubus laciniatus, the cutleaf evergreen blackberry or evergreen blackberry, is a species of Rubus, native to Eurasia. It is an introduced species in Australia and North America. It has become a weed and invasive species in forested habitats in the United States and Canada, particularly in the Northeast and along the Pacific Coast.
Rubus ursinus is a North American species of blackberry or dewberry, known by the common names California blackberry, California dewberry, Douglas berry, Pacific blackberry, Pacific dewberry and trailing blackberry.
Rubus parvifolius, called Japanese bramble, or Australian raspberry in the United States or native raspberry in Australia is a species of plant in the rose family. It is a scrambling shrub native to eastern Asia and Australia. It has also become naturalized in a few scattered locations in the United States.
Rubus cissoides, commonly called bush lawyer or tātarāmoa in te reo Māori, is a species of flowering plant in the family Rosaceae, endemic to New Zealand. Alan Cunningham described R. cissoides in 1839. Plants of this species of are perennial scrambling vines with compound leaves with 3-5 leaflets each up to 15 cm long, reddish prickles on the branches, white flowers from September to November and red berries from December to April. The conservation status of R. cissoides is Not Threatened, it is widespread on all three main islands of mainland New Zealand, and it has been used by Māori as food, medicines and construction materials.
Rubus ulmifolius is a species of wild blackberry known by the English common name elmleaf blackberry or thornless blackberry and the Spanish common name zarzamora. It is native to Europe and North Africa, and has also become naturalized in parts of the United States, Australia, and southern South America.
Rubus pubescens is a herbaceous perennial widespread across much of Canada and the northern United States, from Alaska to Newfoundland, south as far as Oregon, Colorado, and West Virginia.
Rubus pedatus is an Asian and North American species of raspberry known under the common names five-leaved bramble, strawberryleaf raspberry and creeping raspberry.
Rubus flagellaris, the northern dewberry, also known as the common dewberry, is a North American species perennial subshrub species of dewberry, in the rose family. This dewberry is distributed across much of Canada, Mexico, and the United States. It grows in diverse habitats ranging from drier savannas to temperate deciduous forests.
Rubus argutus is a North American species of prickly bramble in the rose family. It is a perennial plant native to the eastern and south-central United States. Common names are sawtooth blackberry or tall blackberry after its high growth.
Rubus allegheniensis is a North American species of highbush blackberry in Section Alleghenienses of the genus Rubus, a member of the rose family. It is the most common and widespread highbush blackberry in eastern and central North America. It is commonly known as Allegheny blackberry.
Rubus roribaccus a North American species of brambles in the rose family, called the Lucretia blackberry. It grows in eastern Canada (Québec) and the eastern and central United States.
Rubus sapidus is a Mesoamerican species of brambles in the rose family. It grows in southern Mexico and Central America.
Rubus tricolor is an evergreen prostrate shrub, native to southwestern China. Leaves are dark green above, pale green below, and stems have red bristles. It has white flowers in summer and edible red fruit. It grows approximately 0.3 m (0.98 ft) high and usually forming a vigorously spreading, dense mat. In cultivation, it is mainly used as groundcover. Common names include Chinese bramble, groundcover bramble, creeping bramble, Korean raspberry, Himalayan bramble, and groundcover raspberry. In Chinese, it is called 三色莓.