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Caltha obtusa is a small (2–6 cm high), hairless, perennial herb. Plants form mats of rosettes. Its white rhizomes are stout and fleshy. The spade-shaped leaves have slender petioles of 8–12 mm long that form a membranous sheathing base. The leaf blade is dark green to yellowish green and sometimes with bronze blotches or streaks, are 8 ...
Caltha novae-zelandiae is a small (3–5 cm, exceptional up to 18 cm high), hairless, perennial herb. Plants form mats of rosettes. Its white rhizomes are stout and fleshy. The spade-shaped leaves have slender, grooved petioles of up to 10 cm long that form a membranous sheathing base. The leaf blade is dark green and sometimes has a central ...
Caltha sagittata is a low to medium height, rhizomatomous perennial herb with ivory (or pale yellow) hermaphrodite flowers, belonging to the Buttercup family. It grows in clusters in sunny wet places in the Andes and related mountain chains. It has a disjunct distribution concentrated in the Southern Cone of South America.
Caltha palustris, known as marsh-marigold [1] and kingcup, is a small to medium sized perennial herbaceous plant of the buttercup family, native to marshes, fens, ditches and wet woodland in temperate regions of the Northern Hemisphere. It flowers between April and August, dependent on altitude and latitude, but occasional flowers may occur at ...
And so is the first description as Caltha palustris by Carl Linnaeus in his Genera Plantarum of 1737. But Linnaeus re-describes the species under the same name in Species Plantarum of 1 May 1753, thus providing the correct name. [5] Caltha palustris is a highly variable species. When the growing season is shorter, plants are generally much ...
Caltha dioneaefolia often grows in dense clusters over considerable areas, with thick rhizomes. The stems may be four to ten cm long and are densely branched. Its shiny, thick and fleshy leaves consist of a broad and long leafstalk, about half as wide and up to three times as long as the blade. The blade itself consists of two parts which are ...
Caltha leptosepala subsp. howellii. This is a perennial herb growing a mostly naked stem with leaves located basally. The leaves are up to 13 or 15 centimetres (5 or 6 inches) long and may have smooth, wrinkled, or toothed edges. The inflorescence bears one or more flowers.
Caltha appendiculata is a low (2½-7 cm high) dioecious, perennial herb, often growing in dense clusters over considerable areas, with thick rhizomes. The strong stems are sparingly branched, somewhat elongated, and covered by the remains of old sheaths.