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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 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 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 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 ...
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 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.
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 ...
Another experiment showed that flowers will only open after a cold period, probably a mechanism to prevent premature opening in autumn. [5] Seeds of Caltha introloba in another experiment were shown to germinate best between 22 and 27 °C, with a delay of 40–60 days, and hardly between 0 and 15 °C. However, after four months at 1–2 °C ...