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Stroma is located in the black lesions of the infected leaves. [2] Conidiophores form non-infectious conidia that are released both in conditions of wetness and drought. [ 2 ] [ 7 ] The most favorable environment for the pathogen is when there is an extended period of moisture such as fog or rain, which prevents the leaves from drying out. [ 8 ]
The leaves turn golden yellow to red [4] in autumn (less reliably in warmer areas). In Texas, specimens do not color well if they have a heavy seed year. [5] The flowers appear with the leaves in mid spring; they are produced in corymbs of 5–15 together, each flower yellow-green, about 4–5 millimetres (3 ⁄ 16 – 3 ⁄ 16 in
It can cause complete crop loss in warm, humid climates, but is virtually unknown in regions with arid summers.” [1] The name comes from the black fringe that borders growing brown patches on the leaves. The disease also attacks other parts of the plant, “all green parts of the vine: the shoots, leaf and fruit stems, tendrils, and fruit.
While both poison ivy and Acer negundo have compound leaves composed of three leaflets with ragged edges, Acer negundo exhibits an opposite branching pattern, as opposed to the alternating pattern of poison ivy. [16] Like poison ivy, Acer negundo is also a noted riparian species, and can often be found growing along riverbeds and in wet soils ...
Acer nigrum, the black maple, is a species of maple closely related to A. saccharum (sugar maple), and treated by some authors as a subspecies of it, as Acer saccharum subsp. nigrum. [2] [3] Identification can be confusing due to the tendency of the two species to form hybrids. The simplest and most accurate method for distinguishing between ...
Acer pensylvanicam inflorescence in Ashford, Connecticut. Moosewood is an understory tree of cool, moist forests, often preferring slopes. It is among the most shade-tolerant of deciduous trees, capable of germinating and persisting for years as a small understory shrub, then growing rapidly to its full height when a gap opens up.
Acer sempervirens, the Cretan maple, is a species of maple native to southern Greece and southern Turkey. [2] [3] [4] Cretan maple (Asfendamos), Dikti Mountains, Crete. Acer sempervirens is an evergreen or semi-evergreen shrub or small tree, one of the very few evergreen species in the genus. It grows to 10 metres (33 ft) tall with a trunk up ...
The leaves of the chalk maple are generally smaller, 5-8 cm across, with 3 to 5 lobes, whereas the leaves of the Florida maple are larger, up to 11 cm. The leaves of A. leucoderme are yellow-green underneath rather than the whitish underside of Florida maple. The lobes on the leaves of Florida maple are squarer and blunter than those of A ...