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Barrel cactus buds typically start to bloom in April with a bright yellow or orange flower. Pink and red varieties also exist but occur less frequently. The flowers only appear on the very top of the plant. As the flowers begin to wilt in early May, they may change color.
The urn-shaped bloom buds droop downward prior to opening. The inner whorl of phyllaries surrounding the lower portion of the bloom is translucent, which allows the colors of the developing flowers to be seen. When open, there are two types of phyllary at the base of the bloom: one is short and green, the other red and long.
Rafflesia (/ r ə ˈ f l iː z (i) ə,-ˈ f l iː ʒ (i) ə, r æ-/), [2] or stinking corpse lily, [3] is a genus of parasitic flowering plants in the family Rafflesiaceae. [4] The species have enormous flowers, the buds rising from the ground or directly from the lower stems of their host plants; one species has the largest flower in the world.
Though it is sometimes referred to as a night-blooming cereus, it is not closely related to any of the species in the tribe Cereeae, such as Selenicereus, that are more commonly known as night-blooming cereus. All Cereus species bloom at night and are terrestrial plants; Epiphyllum species are usually epiphytic.
The buds take many months to develop and the flower lasts for just a few days. The flowers are dioecious – either male or female, thus both flowers are needed for successful pollination. [21] When Rafflesia is ready to reproduce, a tiny bud forms outside the root or stem of its host and develops over a period of a year. The cabbage-like head ...
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Oxydendrum arboreum, / ˌ ɒ k s ɪ ˈ d ɛ n d r ə m ɑːr ˈ b ɔːr i ə m / [2] the sourwood or sorrel tree, is the sole species in the genus Oxydendrum, in the family Ericaceae.It is native to eastern North America, from southern Pennsylvania south to northwest Florida and west to southern Illinois; it is most common in the lower chain of the Appalachian Mountains.
It is only in its eighth year that it bursts into bloom. At that time the pink and white buds [10] bear bright purple [2] (purplish blue [11]) flowers in a mass flowering which covers many forest areas with a colorful lavender blush [7] of buds with a tinge of pink [11] with its profusion of violet blooms, [10] after this once in a lifetime ...