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ROS 2 was announced at ROSCon 2014, [64] the first commits to the ros2 repository were made in February 2015, followed by alpha releases in August 2015. [65] The first distribution release of ROS 2, Ardent Apalone, was released on 8 December 2017, [65] ushering in a new era of next-generation ROS development.
Digitalis isabelliana, known commonly as Canary Island foxglove, Isabel's foxglove, or Gran Canaria Pineforest foxglove, [3] is a type of flowering shrub, one of three species of foxglove native to the Canary Islands.
Digitalis purpurea, the foxglove or common foxglove, is a toxic species of flowering plant in the plantain family Plantaginaceae, [2] native to and widespread throughout most of temperate Europe. [3] It has also naturalized in parts of North America, as well as some other temperate regions.
Agalinis (false foxglove) is a genus of about 70 species in North, Central, and South America that until recently was aligned with members of the family Scrophulariaceae. [2] As a result of numerous molecular phylogenetic studies based on various chloroplast DNA ( cpDNA ) loci, it was shown to be more closely related to members of the ...
Hendrik Goltzius, A Foxglove in Bloom, 1592, National Gallery of Art, NGA 94900 The generic epithet Digitalis is from the Latin digitus (finger). [8] Leonhart Fuchs first invented the name for this plant in his 1542 book De historia stirpium commentarii insignes (Notable comments on the history of plants), based upon the German vernacular name Fingerhut, [9] [10] which translates literally as ...
Digitalis obscura is a shrub or herbaceous perennial growing from a woody base, reaching 1 to 3.9 feet (0.30 to 1.19 m) tall. [6] The stems are smooth and erect. The long leaves are basal and form in a rosette fashion, growing outward closer to the ground.
Agalinis tenuifolia, known by the common names common gerardia, [2] slender false foxglove [2] or common false foxglove, is an annual forb native to the eastern and southwestern United States, and Canada, [3] which produces purple flowers in late summer or early fall.
Penstemon digitalis (known by the common names foxglove beard-tongue, [3] foxglove beardtongue, talus slope penstemon, [4] and white beardtongue [5]) is a species of flowering plant in the plantain family, Plantaginaceae. The flowers are white and are borne in summer.