Thorns
By Sanmcgill
Thorns (Crataegus) - Hardy flowering trees, of which some of the most beautiful kinds are seldom planted; many are charming for their flowers, others for their fruits, while in a few the habit is picturesque.
Buckthorns
Family: N.O. Rhamnaceae
Common Buckthorn
(Rhamnus cathartica)
Click on graphic for larger image ...
Begonia Thorns
( Thorns Begonia )
Begonias are tender perennials, grown for their colorful flowers and foliage. Most begonias can be grown outdoors in pots, in the ground, or in hanging baskets in filtered light and moist, but well drained soil.
Pink Crown of Thorns
Euphorbia milii tulearensis
An upright and spreading with semi-woody stems lined with thorns producing 1/2" salmon pink blooms in summer. Provide ample drainage.
The "Crown-of-thorns" is a trailing or climbing spiny shrub with showy flower clusters and red, petal like bracts.
Hawthorns are deciduous, tall woody shrubs to small trees with oval to finger-like, glossy dark green leaves.
Hawthorns / Crataegus L.
alternate arrangement.
simple leaves.
40. Hawthorns / Crataegus spp. leaf ...
HAWTHORNS
Parsley Hawthorns. By Rosalie Osbaker. 1976 #1, p 12
Rare Fruit Sources. By Arlo Hale Smith. 1977 #1, pp 3-16
HERBS AND SPICES ...
thorns can be hazardous
tends to have many pest problems similar to apple trees
ID Features
long thorns along stems
a medium-sized deciduous tree
15' to 30' tall
dense, broad, rounded tree
uneven serrated leaf margins
simple, alternate leaves ...
Thorns and prickles don't always deter pests, as in the case of roses, which are loved by insects and deer alike. Combined with other attributes, though, thorns may reduce damage.
Rhamnus - Buckthorns
Rhamnus caroliniana - Carolina Buckthorn; Polecat Tree
Rhamnus cathartica - Common Buckthorn; European Buckthorn
Rhamnus frangula - Glossy Buckthorn
Rhamnus lanceolata - Lance-leaf Buckthorn ...
Has thorns. SelecTree lists no cultivars of pallida.
Family: Ulmaceae
California Native: No
Habit: Evergreen to Partly Deciduous
Sunset Zones: 10 - 13
Exposure: Full Sun to Partial Shade
Water Needs: Moist to Dry Soil. Drought tolerant.
Although thorns and briars pose no problems to them, the fibrous or fuzzy foliage of ferns, ornamental grasses, tarragon and wormwood (Artemesia), lamb's ears (Stachys) and borage-family plants like bugloss (Anchusa), borage, heliotrope, ...
Indian hawthorns are grown for their attractively neat, mounded form and clusters of flowers. The fragrant, pink or white crabapple-like flowers open in clusters above the foliage in mid-April to May.
Crown of Thorns - Care Questions and Answers
Question: How should I go about caring for a crown of thorns? Answer: The crown of thorns, Euphorbia splendens, thrives on neglect.
The curved thorns on the stems are antispasmodic, carminative, febrifuge and hepatic[147]. A decoction is used in the treatment of infantile convulsions, headaches, dizziness, hypertension and apoplexy[147].
The strong thorns of this shrub grow 1 to 2 inches long. Abundant flowers give way to red or purple fruit.
Attributes - Crataegus columbiana
Plant Type: Shrub, Tree ...
Lavalle hawthorns tend to be relatively free of the problems that plague other members of its genus. Rust, scab, and fireblight are virtually unknown to it, and as a result the foliage stays green and lustrous all summer long.
The crown of thorns is planted in a commercial landscape on Miami Beach's fab Lincoln Road Mall where it makes a colorful and durable groundcover.
Usage ...
two forms of thorns on labeled specimens of Acacia constricta
comparison chart for select Acacia species
A. greggii ...
- Hawthorns (Crataegus x mordenensis 'Toba', pink, and 'Snowbird', white, Zone 3) have red fruit and few thorns. Six metres tall by six metres wide.
- Flowering cherry (Prunus 'Kiku-shidara-zakura', Zone 5b). Pink.
Five different Hawthorns are along Stevens way adjacent to the Medicinal Herb Garden.
Many species of hawthorns were originally native of the Mediterranean regions & well into central Asia are, but are now naturalized throughout Europe & in North America, ...
Crown of thorns (Euphorbia milii)
Crown vetch (Coronilla varia)
Crystalwort (Riccia fluitans)
Cucumbers (Cucumis sativus)
Cumin (Cuminum cyminum)
Cupid's bower, hot water plant (Achimenes species)
Curled pondweed (Potamogeton crispus) ...
This hawthorne grows to 25 feet, with 4 inch (!!!) long thorns, and is hardy in zones 4-6.
Crataegus cuneata: hawthorn, ornamental thorn, Japanese hawthorn - small lobed leaves, white flowers in spring, large fruit.
arose from the supposed resemblance of the corona to the crown of thorns, and of the other parts of the flower to the nails, or wounds, while the five sepals and five petals were taken to symbolize the ten apostles - Peter, who denied, and Judas, ...
It will grow eventually 7 to 10 ft tall, with erect and spreading main branches, branchlets sometimes with thick thorns, a trunk that is whitish grey, the bark is smooth, often flaking into thin peels.
Caring for a Crown of Thorns
My crown of thorns has developed some problems over the past several months.
Some 100-150 species of deciduous, sometime evergreen, shrubs; upright, arching, or climbing, stems usually with prickles ("thorns") or bristles.
Field Marks: Of the southern hawthorns, this one may be distinguished by its leaves broadest above the middle and rusty brown hairs on the lower surface of the leaves, particularly along the veins.
They usually have thorns, clusters of white (rarely rose-colored) flowers in the spring, and colorful orange, red, or yellow (rarely blue or black) fruits in the fall. The fruits, called haws, resemble tiny apples; some are used in jellies.
LEAVES: Alternate, simple, evergreen, narrow, 2 to 3" long, 1/3 to 1/2" wide, spiny serration, dark green, and there are thorns
SIZE: 6 to 10', sometimes higher, spread similar
HARDINESS: Zone 5 to 8
HABIT: Dense rounded shrub ...
The tree, which is the only species in the genus Aegle, grows up to 15 meters tall and bears thorns and fragrant flowers. Leaves are alternate, pale green, trifoliate; terminal leaflet, 5.7 cm long, 2.
Skunkvine is a woody vine that does not have thorns. Its vines are able to grow 30 feet in length, climbing up into tree canopies or crawling along the ground. For some unknown reason, the vines constantly twine to the right.
As ornamental trees hawthorns offer seasonal beauty and often attract birds. Their foliage is frequently more interesting and healthier than that of most cherries (Prunus) or crab apples (Malus), two related genera.
Large shrubs or small trees, usually with thorns; leaves alternate,
simple, serrate to shallowly lobed; flowers few, usually white, in
terminal corymbs; calyx 5-lobed, the tube campanulate to cup-shaped; ...
Leaf: Highly variable, but generally alternate, simple, 2 to 4 inches long, serrate and lobed (may be unlobed), subtending long thorns, dark green above and paler below.
The Umbrella Thorn has two types of thorns on the branches; long, straight, brownish thorns and shorter, hooked thorns that grow alongside each other.
If you live in the South, then you may have met at least one member of the Caltrop family, the puncture vine, from the thorns pulled from your bicycle tires and shoes. Members of the Caltrop family have opposite, usually pinnately divided leaves.
pteracantha is a deciduous species rose that is quite unlike any other, as it has gorgeous translucent crimson thorns. The thorns are especially noticeable on a sunny winter's day when they glisten. Rosa sericea f.
The arching stem of this species is unusual for being almost entirely without thorns. Generally only the second year stems flower.
Leaves: The leaves are alternate. Each leaf is divided into three to five toothed leaflets.
Several native American buckthorns that occur in the eastern U.S. that could be confused with the exotic species. If in doubt, consult with a knowledgeable botanist to get an accurate identification.
Before placing the roses in a vase, remove any leaves and thorns that will be below the water after arranging, since these will quickly disintegrate, foul the water, and shorten the life of the cut flowers.
Dark olive-green leaves with no thorns or spines are sparsely covered with fibrous strands along the margins. Deep coral pink flowers with golden yellow throats crowd the length of the stalks that reach three feet or more.
Crataegus crus-galli: Small spreading deciduous tree to with long thorns.
C. Ã- persimilis 'Prunifolia' AGM: A better garden tree and almost as resilient.
Juniperus scopulorum: A small conical coniferous tree, with reddish bark, ...
The Christmas Cactus is a succulent cactus, though not with the thorns normally associated with that group of plants. It is an Epiphyte.
The Japanese Barberry is in a class of deciduous shrubs with thorns that can tolerate a little punishment from the environment or poor soil.
Contrary to popular belief, roses do not have thorns. The thorn-like protrusions on the stems of roses are actually called prickles. A thorn would be an entire stem or branch that has been modified to be hard and sharp.
Oaks (Quercus) are the preferred host, though other susceptible species include apple (Malus), alder (Alnus), aspen (Populus), basswood or linden (Tilia), hawthorns (Crataegus) and willows (Salix) are also damaged.
("Polyacantha" is Greek for "many thorns".) Flowers, ranging from yellow to hot pink (see below), are very large in relation to the pad size. New pads are soft, as are their short, undeveloped spines.
A small deciduous tree with spreading branches which are clothed in curved thorns and glossy green leaves that turn brilliant shades of scarlet before falling in autumn.
There are no thorns. The dark green, entirely smooth leaves turn yellow or red in autumn.. The small, greenish-white flowers arise from leaf axils in the upper branches and give way to globular berries, green turning to red and finally glossy black.
Lavalle Hawthorn, like many hawthorns, is an ornamental tree that is often used as a foundation tree, bearing in mind that its late May inflorescences are malodorous, its upright growth habit is often asymmetrical and as such may appear leaning, ...
The habit of training firethorns to walls is an 18th Century innovation that first appeared in England and spread to this country soon thereafter.
This is a particularly beautiful cultivar of the often overlooked hawthorns. It is quite a small tree, with a maximum height of around 6m (20ft) often less, so suited to fairly restricted sites.
A very popular plant, with numerous large dark brown branches bearing very sharp thorns. Its popular name is the 'Crown of Thorns'. The bright green leaves are about 11 inches long and f inch broad, smooth and leathery.
Shrubs: Green Alder (Alnus crispa), Lowbush Blueberry (Vaccinium angustifolium), Chokecherry (Prunus virginiana), Hawthorns (Crataegus spp.), American Hazel (Corylus americana), Serviceberry (Amelanchier spp.), snowberry (Symphoricarpos spp.), ...
Habitat
Black hawthorns like lots of sunlight to grow to tree size. The apple-like fruit provides food for birds in the winter. Impenetrable hawthorn thickets are good nesting and denning or resting and sleeping sites for small birds and mammals.
Common name: Crown of Thorns.
Bushy, slow growing, semi-succulent shrub with slender, fleshy, thorny stems. Origin: Madagascar. Min. temperature - 54F (12C).
Euphorbia pulcherrima Klotzsch (Poinsettia pulcherrima Grah.) ...
Shrub, with wicked bifurcate thorns and showy, fragrant white flowers (June-July), between Keck Science and Organic Chemistry bldgs. Others plantings at Rains and Manzanita Park.
Illustrations (links open new windows): flower ...
 See also: Green, May, Orange, Pink, Rose
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