Search results
Results From The WOW.Com Content Network
White mold affects a wide range of hosts and causes sclerotinia stem rot. It is known to infect 408 plant species. As a nonspecific plant pathogen, [2] diverse host range and ability to infect plants at any stage of growth makes white mold a serious disease. The fungus can survive on infected tissues, in the soil, and on living plants.
Orchid seeds are very small (0.35mm to 1.50mm long), spindle-shaped, and have an opening at the pointed end. [5] Each seed has an embryo that is undifferentiated and lacks root and shoot meristems. [3] An orchid seed does not have enough nutritional support to grow on its own, and lacks endosperm. [2]
Odontoglossum ringspot virus (ORSV) is a plant pathogenic virus that belongs to the family Virgaviridae. It is one of the most common viruses affecting cultivated orchids, perhaps second only to the Cymbidium mosaic virus. [1] It causes spots on leaves and colored streaks on flowers. [1]
Best method of treatment is removal of infected tissue. [10] Anthracnose: a group of fungal diseases that cause leaf spots, blotches, dieback, and others. Spreads in wet conditions. [11] Black rot: fungal disease that spreads quickly through plant tissue, turning it black. Spreads by splashing water between affected plants. [12]
The plant can grow up to three feet (91 cm) tall. The leaves are long and thin. [10] The inflorescence is large and showy and may have up to 40 white flowers. It is distinguished from Platanthera praeclara, the western prairie fringed orchid, by its smaller flowers (less than one inch (2.5 cm) long), more oval petals, and a shorter nectar spur ...
The orchid family is one of the largest flowering plant families in the world. Orchids can be found on every continent except Antarctica, from the steamy jungles of Asia to the dry deserts of ...
Goodyera pubescens is a plant in the Orchidaceae (orchid) family that is commonly found in North America. The genus Goodyera are terrestrial plants with a fleshy rhizome with basal evergreen leaves in a rosette pattern - frequently having white or pale green markings. Inflorescences are in the form of a spike of small flowers, usually white ...
It is commonly known as the white egret flower, fringed orchid or sagisō (鷺草). Pecteilis radiata grows with small tubers, from which grasslike leaves emerge. Flower spikes, which can be up to 50 cm tall, produce 2-3 white flowers that bloom in late summer. [ 2 ]