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A list of tree species, grouped generally by biogeographic realm and specifically by bioregions, and shade tolerance. Shade-tolerant species are species that are able to thrive in the shade, and in the presence of natural competition by other plants. Shade-intolerant species require full sunlight and little or no competition. Intermediate shade ...
The very fragrant flowers, large and violet-blue in colour [14] are produced before the leaves in early spring, on panicles 10–30 centimetres (4–12 in) long, with a tubular purple corolla4–6 centimetres (1 + 1 ⁄ 2 – 2 + 1 ⁄ 4 in) long resembling a foxglove flower.
The Fitzpatrick scale has been criticized for its Eurocentric bias and insufficient representation of global skin color diversity. [9] The scale originally was developed for classifying "white skin" in response to solar radiation, [2] and initially included only four categories focused on white skin, with "brown" and "black" skin types (V and VI) added as an afterthought.
Eastern Hemlock is a shade-tolerant tree. In ecology, shade tolerance is a plant's ability to tolerate low light levels. The term is also used in horticulture and landscaping, although in this context its use is sometimes imprecise, especially in labeling of plants for sale in commercial nurseries. [citation needed] Shade tolerance is a complex ...
The ten orbs of the Monk Skin Tone Scale. The Monk Skin Tone Scale is an open-source, 10-shade scale describing human skin color, developed by Ellis Monk in partnership with Google and released in 2023. [1]
Callitropsis nootkatensis is an evergreen conifer growing up to 40 meters (131 ft) tall, exceptionally 60 m (200 ft), with diameters up to 3.4 to 4 m (11 to 13 ft). The bark is thin, smooth and purplish when young, turning flaky and gray. [4]
The Ringelmann scale is a scale for measuring the apparent density or opacity of smoke. [ 1 ] [ 2 ] It was developed by a French professor of agricultural engineering Maximilien Ringelmann of La Station d'Essais de Machines in Paris , who first specified the scale in 1888.
Factor ()Multiple Value Item 0 0 lux 0 lux Absolute darkness 10 −4: 100 microlux 100 microlux: Starlight overcast moonless night sky [1]: 140 microlux: Venus at brightest [1]: 200 microlux