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Echinocereus stramineus is a species of cactus, with stramineus meaning made of straw. There are various common names such as strawberry cactus, porcupine hedgehog cactus, straw-color hedgehog, and pitaya. The straw-colored spines distinguishes this particular plant from other Echinocereus. The aged spines may turn white in color and are very ...
This flower morphology is likely an adaptation to protect the developing buds from low temperatures. Upon maturity, the flowers are usually brightly colored and open during the day. Echinocereus floral color is variable because perianth color reflects pollinator specificity. Red flowers are generally associated with hummingbird pollination ...
Color blindness may also present itself as a symptom of degenerative diseases of the eye, such as cataract and age-related macular degeneration, and as part of the retinal damage caused by diabetes. Vitamin A deficiency may also cause color blindness. [47] Color blindness may be a side effect of prescription drug use.
Monochromacy (from Greek mono, meaning "one" and chromo, meaning "color") is the ability of organisms to perceive only light intensity without respect to spectral composition. Organisms with monochromacy lack color vision and can only see in shades of grey ranging from black to white. Organisms with monochromacy are called monochromats.
See this list of flower meanings with pictures to learn the symbolism and history behind some of your favorite blooms, including roses, irises and lilies.
The language of flowers is a mystery to many. While there's a good chance you already know what roses symbolize (love, of course), you may be surprised to know the meaning behind some of your ...
Language of flowers – cryptological communication through the use or arrangement of flowers; Hanakotoba, also known as 花言葉 – Japanese form of the language of flowers; List of national flowers – flowers that represent specific geographic areas
The middle one is often flattened. The 5 to 20 radial spines are round at the base 1-4 cm long. It blooms in late spring to early summer. The flowers are usually red, yellow, pink, purple or white. The broad, funnel-shaped, orange-red flowers appear below the shoot tip and are sometimes dioecious.