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In biology, the BBCH-scale for leafy vegetables forming heads describes the phenological development of leafy vegetables forming heads, such as cabbage, chinese cabbage, lettuce and endive, using the BBCH-scale. The phenological growth stages and BBCH-identification keys of leafy vegetables forming heads are:
The cabbage inflorescence, which appears in the plant's second year of growth, features white or yellow flowers, each with four perpendicularly arranged petals. Cabbage seedlings have a thin taproot and cordate (heart-shaped) cotyledons. The first leaves produced are ovate (egg-shaped) with a lobed petiole.
Haidinger's brush is a very subtle bowtie or hourglass shaped pattern that is seen when viewing a field with a component of blue light that is plane or circularly polarized. It's easier to see if the polarisation is rotating with respect to the observer's eye, although some observers can see it in the natural polarisation of sky light. [1]
According to the New York Times, here's exactly how to play Strands: Find theme words to fill the board. Theme words stay highlighted in blue when found.
Centaurea cyanus Scientific classification Kingdom: Plantae Clade: Tracheophytes Clade: Angiosperms Clade: Eudicots Clade: Asterids Order: Asterales Family: Asteraceae Genus: Centaurea Species: C. cyanus Binomial name Centaurea cyanus L. Centaurea cyanus (introduced species) near Peshastin, Chelan County, Washington Centaurea cyanus, commonly known as cornflower or bachelor's button, is an ...
A common phenotype of UV coloration is the “bulls-eye” pattern where a flower reflects UV light at the ends of the petals and absorbs UV light in the center. [4] This acts as a guide for pollinators to locate and find pollen. [4] Other flowers add the contrast between their reproductive parts (anthers and pistils) and their petals. [7]
Cleome gynandra is an erect, branching plant generally between 25 cm and 60 cm tall. Depending on environmental conditions, it can reach up to 150 cm of height. [7] Its sparse leaves are each made up of 3–7 oval-shaped leaflets.
Lysichiton is a genus in the family Araceae.These plants are known commonly as skunk cabbage or less often as swamp lantern. [2] The spelling Lysichitum is also found. The genus has two species, one found in north-east Asia (Japan and Russian Far East), the other in north-west America (Aleutians to Santa Cruz County in California).