Crataegus laevigata - English Hawthorn

Crataegus laevigata: Crataegus is the Greek name for this genus of trees. Derives from kratos meaning strength, referring to hardness of wood; laevigatais Latin meaning 'having a smooth or slippery surface.'

Previously known as C. oxyacantha from the Greek ‘oxus’ meaning sharp and ‘akantha’ meaning thorn.

Small stature tree from Europe. Greeks and Romans associated Hawthorne with marriage and fertility.
The straight species has white hermaphroditic flowers with a single whorl of petals in terminal corymbs. Flowers appear in spring and attract bees.
Cultivars with pink to red double and single flowers are common.
Clusters of small red, fleshy, pome fruits contain 1-5 seeds and are persistent through winter, attracting birds. Fruit is larger and purer red than C. phaenopyrum. Hawthorne Berries have been used since the nineteenth century to support the heart and to normalize cardiovascular functions.
Linnaeus' original description of C. oxyacantha was later disambiguated into C. monogyna (left) and C. laevigata (right), the main difference being the depth of the sinuses between lobes. C. laevigata also has rounder lobes and serrate margins, whereas C. monogyna can have entire margins or points just at the tips of lobes.
Branches have sharp 1" spines. The branches of this tree are said to have furnished Christ's crown of thorns.
Bark is reddish brown to gray and becomes scaly or peels in thin narrow strips with age.

Crataegus phaenopyrum - Washington Thorn

Watch out for long thorns.

Prunus caroliniana - Carolina Laurel Cherry

Fast growing, round headed, evergreen tree.
Simple shiny lanceolate leaves with red petioles. Flowers held in 2" racemes.
Terminal white, slightly fragrant flowers in spring.
Fruits are juicy black-skinned drupes.
Smooth medium gray trunk.

Prunus serrulata - Flowering Cherry

Prunus serrulata: Prunus, Latin for 'plum'; serrulata, meaning 'with small saw-like teeth,' referring to the serrulate leaf margins.

Trees bloom in early spring (late March in the SF Bay Area), later than P. cerasifera.
Showy flowers in deep pink to white can have a single whorl of petals...
...or multiple whorls of petals.
Fine hairs along serrulate leaf margins.
Leafed out.
Shiny, smooth grey bark with distinctive horizontal lenticels becomes rough with age.

Pyrus calleryana - Ornamental Pear

Pyrus calleryana: Pyrus, Latin for 'pear'; calleryana, named for J. Callery, a French missionary in China who collected this tree and brought it to the west

More upright in form than Pyrus kawakamii.

Commonly used as a street tree in New York.
Leaves less susceptible to leaf spot than P. kawakamii. Bark on stems tends to be a glossy reddish-brown.
Inedible fruit looks like a miniature pear.

Malus floribunda - Japanese Flowering Crabapple

Malus floribunda: Malus, from Greek melon, meaning apple; floribunda, producing abundant flowers.

Pyrus kawakamii - Evergreen Pear

P. kawakamii is much more susceptible to leafspot than P. calleryana.

Prunus cerasifera 'Atropurpurea'- Cherry Plum cultivar

Prunus cerasifera - Cherry Plum

Eriobotrya japonica - Loquat