Search results
Results from the WOW.Com Content Network
The white color of many flowers, such as Magnolia grandiflora, is due to the phenomenon of total reflection of light. The petals may have air spaces in subepidermal position or a layer of cells with abundant starch grains, and in both cases the light is reflected. The dark colors are due to a total absorption of light operated by complementary ...
Thirdly, plant morphology studies plant structure at a range of scales. At the smallest scales are ultrastructure, the general structural features of cells visible only with the aid of an electron microscope, and cytology, the study of cells using optical microscopy. At this scale, plant morphology overlaps with plant anatomy as a field of study.
A plant whose origin or selection is primarily due to intentional human activity. cultivar A term derived from "cultivated variety" denoting an assemblage of cultivated plants clearly distinguished by one or more characters (morphological, physiological, cytological, chemical, or other). When reproduced (either sexually or asexually), the ...
Plants may bear either all bisexual flowers (hermaphroditic), both male and female flowers (monoecious), or only one sex (dioecious), in which case separate plants are either male or female flower-bearing. Where both bisexual and unisexual flowers exist on the same plant, it is called polygamous.
On one extreme is allopatry, in which the overlap is zero (no gene flow), and on the other extreme is sympatry, in which the ranges overlap completely (maximal gene flow). The varying definitions of sympatric speciation fall generally into two categories: definitions based on biogeography, or on population genetics.
From ground cover ideas to perennial borders, these shade-loving flowers, shrubs, grasses, and trees will infuse shade gardens with brilliant color and texture. These 25 Plants Will Add Color and ...
It is the presence and relative abundance of chlorophyll that gives plants their green color. All land plants and green algae possess two forms of this pigment: chlorophyll a and chlorophyll b. Kelps, diatoms, and other photosynthetic heterokonts contain chlorophyll c instead of b, while red algae possess only chlorophyll a. All chlorophylls ...
Teal. According to the Garden Media Group’s 2025 trend report, teal is set to be the color of the year for gardens in 2025.This unexpected hue, found sparingly in nature, adds a touch of modern ...