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Cephalanthera austiniae is a species of orchid known as the phantom orchid and snow orchid [2] because the entire plant is white except for a few yellow markings on the flowers. The orchid is native to the western United States ( California , Oregon , Washington and Idaho ), and to British Columbia , Canada.
Orchids naturally shed old foliage. If the bottom leaves on a monopodial orchid turn yellow, the plant is probably just getting ready to drop them because the leaves are at the end of their life span.
Liparis bracteata, commonly known as the yellow sphinx orchid, [2] is a plant in the orchid family.It is an epiphytic or lithophytic orchid with cone-shaped pseudobulbs, each with two linear to lance-shaped leaves and between seven and twelve star-shaped pale green flowers that turn yellow as they age.
The petals are up to 8 centimetres (3.1 inches) in diameter and snow white with a yellow spot on the lip. This orchid blooms in the late winter, when the snow begins to melt. Its leaves are deep green and narrow, between 10 and 15 centimeters (3.9 and 5.9 inches) long. Bulbs are the size of walnuts.
Left untreated, however, leaves may curl and turn yellow or brown, flowers may drop, and bloom times may be shortened. The fungus can also weaken and stunt plants, inhibiting photosynthesis and ...
Lycaste flowers, like all orchid blooms, have three petals and three sepals. The petals are typically yellow, white, or orange, and the sepals are yellow, orange, green, or reddish brown. The petals and sepals may be marked sparsely or densely with red, reddish purple, purple, or reddish brown spots.
Caladenia longiclavata, commonly known as the clubbed spider orchid, is a species of plant in the orchid family, Orchidaceae and is endemic to the south-west of Western Australia. It is a widespread and common orchid with a single, hairy leaf and one or two greenish-yellow, white and red flowers and which grows in the area between Perth and Albany.
The column is white or blue, 4–6 mm (0.16–0.24 in) long and about 3 mm (0.1 in) wide. The lobe on the top of the anther is yellow with a dark blue band on the back and several rows of crowded, finger-like glands with yellow or orange tips. The side lobes have dense, toothbrush-like tufts of white, pink or bluish hairs.