Question: Are both the Aglaonema and Alstonia genus of plants evergreen?
Context: Lauraceae are the laurel family, that includes the true laurel and its closest relatives.  This family of flowering plants comprises about 2850 known species in about 45 genera worldwide (Christenhusz & Byng 2016 ).  They are dicotyledons, and occur mainly in warm temperate and tropical regions, especially Southeast Asia and South America.  Many are aromatic evergreen trees or shrubs, but some, such as "Sassafras", are deciduous, or include both deciduous and evergreen trees and shrubs, especially in tropical and temperate climates. " Cassytha" is a genus unique to the Lauraceae family in that it is a genus of parasitic vines. Festuca (fescue) is a genus of flowering plants belonging to the grass family, Poaceae (subfamily Pooideae).  They are evergreen or herbaceous perennial tufted grasses with a height range of 10 - and a cosmopolitan distribution, occurring on every continent except Antarctica.  The genus is closely related to ryegrass ("Lolium"), and recent evidence from phylogenetic studies using DNA sequencing of plant mitochondrial DNA shows that the genus lacks monophyly.  As a result, plant taxonomists have moved several species, including the forage grasses tall fescue and meadow fescue, from the genus "Festuca" into the genus "Lolium". Aglaonema is a genus of flowering plants in the arum family, Araceae.  They are native to tropical and subtropical regions of Asia and New Guinea.  They are known commonly as Chinese evergreens. Tillandsia is a genus of around 650 species of evergreen, perennial flowering plants in the family Bromeliaceae, native to the forests, mountains and deserts of Central and South America, the southern United States and the West Indies.  They have naturally been established in diverse environments such as equatorial tropical rain forests, high elevation Andes mountains, rock dwelling (saxicolous) regions, and Louisiana swamps, such as Spanish Moss ("T. usneoides"), a species that grows atop tree limbs.  Airplant is a common name for plants in this genus.  Most "Tillandsia" species are epiphytes – i.e. they normally grow without soil while attached to other plants.  Some are aerophytes or "air plants", which have no roots and grow on shifting desert soil.  Generally, the thinner-leafed varieties grow in rainy areas and the thick-leafed varieties in areas more subject to drought.  Most species absorb moisture and nutrients through the leaves from rain, dew, dust, decaying leaves and insect matter, aided by structures called trichomes. Pseudopanax is a small genus of 12–20 species of evergreen plants, the majority of which are endemic to New Zealand, although they also occur in Tasmania (Australia) and some plants from South America have at times been included in this genus.  Flowers of the genus occur in terminal umbels. Alstonia is a widespread genus of evergreen trees and shrubs, of the dogbane plant family Apocynaceae.  It was named by Robert Brown in 1811, after Charles Alston (1685–1760), Professor of botany at Edinburgh from 1716-1760. Ochna is a genus comprising 86 species of evergreen trees, shrubs and shrublets belonging to the family "Ochnaceae".  These species are native to tropical woodlands of Africa, the Mascarenes and Asia.  Species of this genus are usually called Ochnas, Bird's-eye bushes or Mickey-mouse plants, a name derived from the shape of the drupelet fruit.  The name of this genus comes from the Greek word "Ochne", used by Homer and meaning "wild pear", as the leaves are similar in appearance.  Some species, especially "Ochna serrulata" (bird's eye plant), are widely cultivated as decorative plants. Clover or trefoil are common names for plants of the genus Trifolium (Latin, "tres" "three" + "folium" "leaf"), consisting of about 300 species of plants in the leguminous pea family Fabaceae.  The genus has a cosmopolitan distribution; the highest diversity is found in the temperate Northern Hemisphere, but many species also occur in South America and Africa, including at high altitudes on mountains in the tropics.  They are small annual, biennial, or short-lived perennial herbaceous plants.  Clover can be evergreen.  The leaves are trifoliate (rarely quatrefoiled (Four-leaf clover), cinquefoil, or septfoil), with stipules adnate to the leaf-stalk, and heads or dense spikes of small red, purple, white, or yellow flowers; the small, few-seeded pods are enclosed in the calyx.  Other closely related genera often called clovers include "Melilotus" (sweet clover) and "Medicago" (alfalfa or Calvary clover). Mahonia is a genus of about 70 species of evergreen shrubs in the family Berberidaceae, native to eastern Asia, the Himalaya, North America, and Central America.  They are closely related to the genus "Berberis".  Botanists disagree on the acceptability of the genus name "Mahonia".  Several authorities argue plants in this genus should be included in the genus "Berberis" because several species in both genera are able to hybridize, and because when the two genera are looked at as a whole, there is no consistent morphological separation except simple vs compound leaves.  "Mahonia" typically have large, pinnate leaves 10–50 cm long with five to fifteen leaflets, and flowers in racemes which are 5–20 cm long. Asparagus is a genus of flowering plants in the family Asparagaceae, subfamily Asparagoideae.  It comprises up to 300 species.  Most are evergreen long-lived perennial plants growing from the understory as lianas, bushes or climbing plants.  The best-known species is the edible "Asparagus officinalis", commonly referred to as just "asparagus".  Some other members of the genus, such as "Asparagus densiflorus", are grown as ornamental plants.
Answer: yes