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Night-blooming cereus is the common name referring to many flowering ceroid cacti that bloom at night. The flowers are short lived, and some of these species, such as Selenicereus grandiflorus , bloom only once a year, for a single night, [ 1 ] though most put out multiple flowers over several weeks, each of which opens for only a single night.
Coreopsis (/ ˌ k ɒr iː ˈ ɒ p s ɪ s / [2]) is a genus of flowering plants in the family Asteraceae. Common names include calliopsis and tickseed , a name shared with various other plants . Description
Coreopsis tinctoria, commonly known as plains coreopsis, garden tickseed, golden tickseed, or calliopsis, is an annual forb. The species is common in Canada (from Quebec to British Columbia ), northeast Mexico ( Coahuila , Nuevo León , Tamaulipas ), and most of the United States , especially the Great Plains and Southern States .
The 12–20 mm long flower phyllaries number 12–13, sometimes more, and they are lanceolate. [6] Plants bloom in late winter to early summer, with normally one or two flower heads per stem, on 15 to 30 cm long peduncles, but sometimes 4 or more heads can be found per stem. Flower heads have 16-21 ray florets with laminae 20–35+ mm long. [6]
The flower heads contain ray florets up to 2.5 centimeters long, or sometimes longer. [6] They are yellow, and generally a paler shade of yellow than related native Coreopsis. [4] The center of the head has many disc florets that bloom yellow and darken as they dry. [6] The plants flower in summer [6] and the herbage may age red in the fall. [5]
Coreopsis verticillata is an herbaceous perennial that grows 2–3 ft (1–1 m) tall and about 2 ft (1 m) wide, although as it spreads laterally by rhizomes, [5] this width can be exceeded. The stems are wiry. [ 6 ]
A long period of temperatures below freezing triggers blooms in spring. For this reason, Southern gardeners often have trouble growing fall-planted perennial bulbs such as snowdrops. Fertilizer
Coreopsis auriculata is a perennial growing from 10 to 30 cm (4-12 in) tall and sometimes to 60 cm (24 in). Plants with rounded yellow flower heads bloom in spring and early summer. They are often stoloniferous, forming long spreading colonies by way of short stolons produced after flowering.
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