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Goldenseal (Hydrastis canadensis), also called orangeroot [2] or yellow puccoon, [2] is a perennial herb in the buttercup family Ranunculaceae, native to North America. It may be distinguished by its thick, yellow knotted rootstock. The stem is purplish and hairy above ground and yellow below ground where it connects to the yellow rhizome.
It is a tuberous-rooted herbaceous perennial growing to 15 cm (6 in), with large (2–3 cm (1–1 in)), yellow, cup-shaped flowers held above a collar of 3 leaf-like bracts, appearing in late winter and early spring. The six sepals are bright yellow and petaloid, and the petals are of tubular nectaries. [2]
Nuphar lutea, the yellow water-lily, brandy-bottle, or spadderdock, is an aquatic plant of the family Nymphaeaceae, native to northern temperate and some subtropical regions of Europe, northwest Africa, and western Asia.
After winter, the species requires light and oxygen to produce new growth and floating leaves begin to appear in spring. [11] N. peltata can reproduce vegetatively or sexually. Fragments of one plant, including stolons, rhizomes, and leaves attached to part of a stem, can also develop into a new plant. [3]
Barbarea vulgaris, also called wintercress (usual common name), or alternatively winter rocket, rocketcress, yellow rocketcress, yellow rocket, wound rocket, herb barbara, creases, or creasy greens, is a biennial herb of the genus Barbarea, belonging to the family Brassicaceae.
The flowers are white, yellow or red, 2–6 cm (1–2 in) diameter with 6–9 petals, and mature into a green, yellow or red fleshy fruit 2–5 cm (1–2 in) long. [8] All the parts of the plant are poisonous, including the green fruit, but once the fruit has turned yellow, it can be safely eaten. [9] The ripe fruit does not produce toxicity. [10]
Chimonanthus is a genus of flowering plants in the family Calycanthaceae, native to China, [4] but is also cultivated elsewhere in Asia, including Iran. [5] The genus includes three to six species depending on taxonomic interpretation; six are accepted by the Flora of China. The name means winter flower in Greek.
Common names include American lotus, yellow lotus, water-chinquapin, and volée. It is native to North America . The botanical name Nelumbo lutea Willd. is the currently recognized name for this species, which has been classified under the former names Nelumbium luteum and Nelumbo pentapetala , among others.