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The centimetre (SI symbol: cm) is a unit of length in the metric system equal to 10−2 metres ( 1 100 m = 0.01 m). To help compare different orders of magnitude, this section lists lengths between 10 −2 m and 10 −1 m (1 cm and 1 dm). 1 cm – 10 millimetres. 1 cm – 0.39 inches. 1 cm – edge of a square of area 1 cm 2.
Centaurea cyanus is an annual plant growing to 20–100 centimetres (8–39 in) tall, with grey-green branched stems. The leaves are lanceolate and 3–10 cm (1–4 in) long. [4] The flowers are most commonly an intense blue colour and arranged in flowerheads (capitula) of 1.5–3 cm diameter, with a ring of a few large, spreading ray florets ...
Centaurea mollis Waldst. & Kit. Centaurea montana, the perennial cornflower, [1] mountain cornflower, bachelor's button, montane knapweed or mountain bluet, is a species of flowering plant in the family Asteraceae, endemic to Europe. It is widespread and common in the more southerly mountain ranges of Europe, but is rarer in the north.
A Naiad by John William Waterhouse, 1893; a water nymph approaches the sleeping Hylas. In Greek mythology, the naiads (/ ˈnaɪædz, ˈneɪædz, - ədz /; Greek: ναϊάδες, translit. naïádes), sometimes also hydriads, [1] are a type of female spirit, or nymph, presiding over fountains, wells, springs, streams, brooks and other bodies of ...
Viète. de Moivre. Euler. Fourier. v. t. e. In trigonometry, trigonometric identities are equalities that involve trigonometric functions and are true for every value of the occurring variables for which both sides of the equality are defined. Geometrically, these are identities involving certain functions of one or more angles.
Grossheimia macrocephala. Centaurea macrocephala is a species of flowering plant in the family Asteraceae, and a member of the thistle tribe, Cardueae (Cynareae). It has many common names, including bighead knapweed, [1] big yellow centaurea, [2] lemon fluff, [3] yellow bachelor's button, [4] yellow hardhat, [5] and Armenian basketflower. [6]
Centaurea diffusa basal rosette, first year plant. Diffuse knapweed is an annual or biennial plant, generally growing to between 10 and 60 cm in height. It has a highly branched stem and a large taproot, as well as a basal rosette of leaves with smaller leaves alternating on the upright stems. Flowers are usually white or pink and grow out of ...
The following species in the flowering plant genus Centaurea are accepted by Plants of the World Online. [1] Species in this genus hybridize readily. [2] Centaurea acaulis L. Centaurea achaia Boiss. & Heldr. Centaurea achilleifolia Homrani-Bakali & Susanna. Centaurea achtarovii Urum. Centaurea acicularis Sm.