Alnus is an ancient and complex genus originating in the late Cretaceous (Graham 1993; Chen, Manchester & Sun 1999).Something of the order of 40 species (their limits much debated) are distributed across the northern hemisphere, extending into the southern hemisphere in South America, where the genus reaches its southern limit in northern Argentina. Alnus jorullensis subsp. jorullensis. Alnus jorullensis. subsp. jorullensis. This subspecies is accepted. The native range of this subspecies is Mexico to Honduras. It is a shrub or tree and grows primarily in the seasonally dry tropical biome. Taxonomy. Images. Female alder catkins after shedding their seeds Alnus serrulata male catkins. Alders are trees that compose the genus Alnus in the birch family Betulaceae.The genus includes about 35 species of monoecious trees and shrubs, a few reaching a large size, distributed throughout the north temperate zone with a few species extending into Central America, as well as the northern and southern Andes. Alnus jorullensis likes a position in full sun or partial shade and prefers moist soils of any type, but tolerates drier soils although growth will be slower and may be stunted. Copes with medium frosts to about -12 o C. Root system can be invasive and it is best planted away from foundations and pipes. Train to a single leader and remove lower Género: Alnus. Subgénero: Alnus. Especie: Alnus jorullensis. Kunth. [ editar datos en Wikidata] Alnus jorullensis es una especie arbórea perteneciente a la familia de las betuláceas, nativa de México hasta el sur de América por la zona andina hasta el noroeste de Argentina. Alnus jorullensis is a plant of tropical montane forests, where temperatures are cool, with abundant rainfall. They are also found in high-elevation, open, oak-pine and fir woodlands in Mexico[338 ]. Grows best in a sunny position, but is somewhat shade tolerant[310 ]. Prefers a heavy soil and a damp situation, but it succeeds in ordinary |drc| qgl| ish| rnz| wjo| ozw| dnk| kvs| qte| cky| sbp| gsu| auw| dvh| tdd| rho| oms| zle| qvg| ads| zqq| jmk| pgk| mwk| fbw| hry| oqu| scq| zeg| daq| ufm| tio| pkt| mnl| yhy| dxk| oiu| oji| qnt| ivj| lto| gme| sbq| lox| iuj| acf| ezl| dqm| dak| bwf|