ranunculus


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ranunculus

any ranunculaceous plant of the genus Ranunculus, having finely divided leaves and typically yellow five-petalled flowers. The genus includes buttercup, crowfoot, spearwort, and lesser celandine

Ranunculus

 

(buttercup, crowfoot), a genus of plants of the family Ranunculaceae. They are perennial or annual herbs; some are aquatic. The alternate leaves are palmatipartite or pinnatisect, lobed, or entire. The flowers are solitary or in inflorescences. There are usually five sepals (sometimes anywhere between three and seven) and five petals. The petals are generally yellow, sometimes white, or less frequently red. The fruit is a multiple nut.

There are more than 400 species distributed worldwide, primarily in the temperate zone of the northern hemisphere. Approximately 180 species are found throughout the USSR, mainly in damp areas, meadows, thickets, and forests, as well as along shores and on dry slopes. They also grow as weeds in fields. The most common species are creeping crowfoot (Ranunculus repens), cursed crowfoot (R. sceleratus), buttercup (R. acris), lesser spearwort (R. flammula), and R. polyanthemus. The foliage of many species is poisonous to varying degrees; it contains the glycosides protoanemonin and ranunculin. When the plant is dried (as hay), the toxicity is lost. The Persian buttercup (R. asiaticus) and some other species are grown as ornamentals. Aquatic species of Ranunculus are often classified in the genus Batrachium.

REFERENCE

Ovchinnikov, P. N. “Rod Liutik—Ranunculus L.” In Flora SSSR, vol. 7. Moscow-Leningrad, 1937.

T. V. EGOROVA

References in periodicals archive ?
shining bright Lesser celandines Ranunculus ficaria 'Brazen Hussy' and, below, Ranunculus ficaria 'Flore Pleno'
There are a host of others, from the neat, perfect rosettes of Ranunculus ficaria 'Flore Pleno' (so symmetrical they look like an illustration from an Elizabethan Herbal) to the massed creamy petals and mucky bronze leaves of 'Double Mud'.
Ranunculus ficaria plants in shallow (5 cm) litter produced 63.6% more biomass than plants with no leaf litter cover, and plants in ambient litter conditions produced 38.1 % more biomass than plants with no leaf litter (Fig.
En este trabajo se presentan la descripcion, la ilustracion y un mapa con la distribucion conocida de Ranunculus filamentosus y una clave para diferenciar las especies de Ranunculus del Noroeste de Argentina.
La Balsa del Sabinar (figura 4) constituye un punto emblematico en la Sierra de Gador por albergar a una de las mejores poblaciones del mastuerzo gadorense (Coronopus navasii), tambien alcanzan un buen desarrollo en esta balsa las comunidades de Ranunculus peltatus subsp.
| YOU can start by planting your summer-flowering bulbs, corms and tubers such as lilies, cannas, ranunculus and gladioli into pots or you can sow them directly into the ground.
One of the hardiest bulbous perennials growing in the late spring and early summer garden, Ranunculus Tomer are ideal for borders, pots and cut flowers.
Sometimes I've accidentally brutalised plants of my favourite Cinderella buttercup, Ranunculus aconitifolius 'Flore Pleno'.
YOU can plant some summer-flowering bulbs, corms and tubers such as lilies, cannas, ranunculus and gladioli into pots or directly into the ground.
She carried a bouquet of white roses, hydrangeas, ranunculus, and dusty miller wrapped with her mother's vintage handkerchief and pinned with her grandmother's cameo brooch.
Ranunculus ficaria exhibits direct allelopathic effects on germination of some native species (Cipollini, unpubl, data), indicating that R.
I received a ranunculus plant the other day and was wondering what I can do with it when it is finished blooming?