Search results
Results from the WOW.Com Content Network
Leaf spots can vary in size, shape, and color depending on the age and type of the cause or pathogen. Plants, shrubs and trees are weakened by the spots on the leaves as they reduce available foliar space for photosynthesis. Other forms of leaf spot diseases include leaf rust, downy mildew and blights. [4]
Leaf gall (beet tumor, or crown wart) Physoderma leproides = Urophlyctis leproides. Phoma leaf spot and root rot Phoma betae: Phymatotrichum root rot (cotton root rot) Phymatotrichopsis omnivora = Phymatotrichum omnivorum. Phytophthora wet rot Phytophthora drechsleri: Powdery mildew Erysiphe polygoni = Erysiphe betae. Pythium root rot Pythium ...
Underside of leaf. The basal leaves are much more numerous with the 7–30 centimeter long leaf stems [3] spreading in every direction to from a rounded tuft of leaves. [2] Each leaf is made up of 8–13 small leaflets, [3] each leaflet is 4–8 centimeters long and rarely less than 10 millimeters wide. [4]
Lupinus excubitus is a small shrub with gray-green foliage. The fan-shaped leaves are borne on the stem and may be clustered at the base. Generally covered with silvery hairs, each is made up of 7 to 10 narrow 5–50 millimetres (0.2–2.0 in) leaflets. The raceme inflorescence is a tall stalk of rich purple flowers, each with a bright yellow spot.
Lupinus lepidus is a small hairy perennial that reaches 10 to 61 centimetres (4 to 24 inches). [3] Palmately compound leaves extend up the stem, but most are basal . [ 3 ] The inflorescence is a dense spike-like raceme , with pink, purple, or blue flowers that often have a yellowish spot. [ 3 ]
An albino corn plant with no chlorophyll (left) beside a normal plant (right) In botany, chlorosis is a condition in which leaves produce insufficient chlorophyll.As chlorophyll is responsible for the green color of leaves, chlorotic leaves are pale, yellow, or yellow-white.
Lupinus polyphyllus, the large-leaved lupine, big-leaved lupine, many-leaved lupine, [2] blue-pod lupine, [3] or, primarily in cultivation, garden lupin, is a species of lupine (lupin) native to western North America from southern Alaska and British Columbia [4] and western Wyoming, and south to Utah and California.
Lupinus pusillus in the Wyoming big sagebrush steppe biome, near Phillips, Montana. Lupinus pusillus , the rusty lupine [ 2 ] or dwarf lupine , is an annual plant in the legume family ( fabaceae ) found in the Colorado Plateau and Canyonlands region of the southwestern United States(California), [ 3 ] : 159 and north to Montana.