• Photo of Euphorbia lathyris (Euphorbia lathyriss)

Plant Profile: Euphorbia lathyris

Taxonomy: Euphorbia lathyris

Names

Caper Spruge, Gopher Spurge, Mole Plant, Paper Spurge, Sassy Jack

  • Photo of Euphorbia lathyris (Euphorbia lathyriss)

Phonetic Spelling:yoo-FOR-bee-ah lath-EYE-riss

Genus:Euphorbia

Species:lathyris

Family:Euphorbiaceae

Euphorbia lathyris, commonly known as Caper spurge, is a herbaceous plant that can be classified as either annual or biennial, blooming from May to June. This species may be encountered in gardens as a cultivated perennial, or it can appear as a weed in disturbed sites and abandoned areas. It thrives in a variety of soil types and can flourish in both sunny and shaded environments. Once established, Caper spurge is self-seeding and can be challenging to eradicate. The plant features alternating leaves at the base and opposite leaves higher up, while its cup-shaped "flowers" are adorned with yellow, crescent-shaped glands that encase large, three-lobed seed capsules. Although often referred to as the Mole Plant due to its reputed ability to deter mice and moles, this claim may be more rooted in folklore than scientific evidence. It is important to note that Caper spurge is toxic, despite its historical use as a potent purgative.

This plant favors light, well-drained soil and an open location. While it thrives best in dry conditions, it is adaptable and can grow in a wide range of environments. Caper spurge is seldom affected by deer or rabbits.

Regarding potential issues, there are no known diseases, insects, or other problems associated with this plant.

Euphorbia lathyris Feature Summary

Euphorbia lathyris Image Gallery

Tags

#poisonous
#biennial
#toxic
#rabbit resistant
#cpp
#deer resistant
#seed pods
#annual weed
#partial shade tolerant
#problem for cats
#problem for dogs
#problem for children
#problem for horses

Similar Plants

Euphorbia lathyris Feature Summary

Attributes
Fruit
Flowers give rise to capsules that are coarsely wrinkled and have 3 lobes. The seeds are green ripening brown or grey, produced in globular clusters 1/2 inch in diameter of three seeds compressed together.
Green
Brown/Copper
Gray/Silver
> 3 inches
Flowers
The flowers are green to yellow-green, .2 of an inch in diameter, with no petals. Flowers are either male or female, but both are found on the same plant. Flowers are pollinated by flies.
Gold/Yellow
Green
< 1 inch
Leaves
Leaves are arranged in decussate opposite pairs at the top of the plant, and are lanceolate, 2 to 5 inches long and 1 inch broad, glaucous blue-green with a waxy texture and pale greenish-white midrib and veins.
Opposite
Alternate
Lanceolate
3-6 inches
< 1 inch
Stem
The stems are blue-green, erect, fleshy and can exude a milky latex.
Green
Blue
Covered with a powdery bloom (glaucous)
Straight
Poisonous to Humans
Nausea, vomiting, and diarrhea when ingested can cause death in people, pets or livestock. Causes redness, swelling, and blisters on the skin after some delay following contact. All parts of the plant, especially the milky sap, are considered toxic.
Diterpene esters in milky latex.
Seeds
Leaves
Stems
Sap/Juice
Flowers
Bark
Roots
Whole Plant Traits
Poisonous
Weed
Erect
Ascending
Cultural Conditions
Full sun (6 or more hours of direct sunlight a day)
Partial Shade (Direct sunlight only part of the day, 2-6 hours)
Alkaline (>8.0)
Neutral (6.0-8.0)
Good Drainage
Mountains
4a
4b
5b
5a
6a
6b
7a
7b
8b
8a
2a
2b
3a
3b
9a
9b
10a
10b
11a
11b
1a
1b
Clay
Loam (Silt)
Sand
Landscape
Woodland
Lawn
Meadow
Poisonous to Humans
Problem for Cats
Problem for Dogs
Problem for Horses
Problem for Children

Euphorbia lathyris Attributes

Euphorbia lathyris: Country Or Region Of Origin

Central Asia to Pakistan and China to North Vietnam

Euphorbia lathyris: Distribution

Mountains

Euphorbia lathyris: Particularly Resistant To (Insects/Diseases/Other Problems)

deer resistant

Euphorbia lathyris: Edibility

Poisonous

Euphorbia lathyris: Life Cycle

Annual
Biennial
Bulb
Perennial
Woody

Euphorbia lathyris: Recommended Propagation Strategy

Division
Grafting
Layering
Leaf Cutting
Root Cutting
Seed
Stem Cutting

Euphorbia lathyris Fruit

Euphorbia lathyris: Fruit Description

Flowers give rise to capsules that are coarsely wrinkled and have 3 lobes. The seeds are green ripening brown or grey, produced in globular clusters 1/2 inch in diameter of three seeds compressed together.

Euphorbia lathyris: Fruit Type

Achene
Aggregate
Berry
Capsule
Caryopsis
Drupe
Follicle
Legume
Nut
Pome
Samara
Schizocarp
Siliqua

Euphorbia lathyris: Fruit Color

grass
Brown/Copper
grass
Gray/Silver
grass
Green

Euphorbia lathyris: Display/Harvest Time

Fall
Spring
Summer
Winter

Euphorbia lathyris: Fruit Length

< 1 inch
1-3 inches
> 3 inches

Euphorbia lathyris Flowers

Euphorbia lathyris: Flower Description

The flowers are green to yellow-green, .2 of an inch in diameter, with no petals. Flowers are either male or female, but both are found on the same plant. Flowers are pollinated by flies.

Euphorbia lathyris: Flower Color

filter_vintage
Gold/Yellow
filter_vintage
Green

Euphorbia lathyris: Flower Bloom Time

Winter
Spring
Summer
Fall

Euphorbia lathyris: Flower Shape

Bell
Cross
Crown
Cup
Dome
Funnel
Irregular
Lipped
Radial
Saucer
Star
Trumpet
Tubular
Urn
Wheel

Euphorbia lathyris: Flower Size

1-3 inches
3-6 inches
< 1 inch
> 6 inches

Euphorbia lathyris Leaves

Euphorbia lathyris: Leaf Description

Leaves are arranged in decussate opposite pairs at the top of the plant, and are lanceolate, 2 to 5 inches long and 1 inch broad, glaucous blue-green with a waxy texture and pale greenish-white midrib and veins.

Euphorbia lathyris: Leaf Color

spa
Green

Euphorbia lathyris: Leaf Arrangement

Alternate
Opposite
Other/more complex
Rosulate
Whorled

Euphorbia lathyris: Leaf Shape

Acicular
Auriculate
Cordate
Cuneate
Deltoid
Elliptical
Filiform
Lanceolate
Linear
Oblanceolate
Oblong
Obovate
Obtuse
Orbicular
Ovate
Palmasect
Palmatifid
Peltate
Pinnatifid
Pinnatisect
Reniform
Rhomboidal
Spatulate
Subcordate
Subulate

Euphorbia lathyris: Hairs Present

No
Yes

Euphorbia lathyris: Leaf Length

< 1 inch
1-3 inches
3-6 inches
> 6 inches

Euphorbia lathyris: Leaf Feel

Fleshy
Glossy
Leathery
Papery
Prickly
Rough
Rubbery
Slippery
Smooth
Soft
Velvety
Waxy

Euphorbia lathyris: Leaf Width

< 1 inch
1-3 inches
3-6 inches
> 6 inches

Euphorbia lathyris Stem

Euphorbia lathyris: Stem Description

The stems are blue-green, erect, fleshy and can exude a milky latex.

Euphorbia lathyris: Stem Color

grass
Blue
grass
Green

Euphorbia lathyris: Stem Is Aromatic

No
Yes

Euphorbia lathyris: Stem Surface

Corky Ridges
Covered with a powdery bloom (glaucous)
Dull
Hairy (pubescent)
Polished
Smooth (glabrous)

Euphorbia lathyris: Stem Form

Straight
Zig Zags

Euphorbia lathyris Poisonous to Humans

Euphorbia lathyris: Poison Symptoms

Nausea, vomiting, and diarrhea when ingested can cause death in people, pets or livestock. Causes redness, swelling, and blisters on the skin after some delay following contact. All parts of the plant, especially the milky sap, are considered toxic.

Euphorbia lathyris: Poison Toxic Principle

Diterpene esters in milky latex.

Euphorbia lathyris: Poison Severity

High
Low
Medium

Euphorbia lathyris: Causes Contact Dermatitis

No
Yes

Euphorbia lathyris: Poison Part

Bark
Flowers
Fruits
Leaves
Roots
Sap/Juice
Seeds
Stems

Euphorbia lathyris Whole Plant Traits

Euphorbia lathyris: Plant Type

Annual
Bulb
Carnivorous
Edible
Epiphyte
Fern
Ground Cover
Herb
Herbaceous Perennial
Houseplant
Mushroom
Native Plant
Ornamental Grasses and Sedges
Perennial
Poisonous
Rose
Shrub
Succulent
Tree
Turfgrass
Vegetable
Vine
Water Plant
Weed
Wildflower

Euphorbia lathyris: Habit/Form

Arching
Ascending
Broad
Cascading
Climbing
Clumping
Columnar
Conical
Creeping
Dense
Erect
Horizontal
Irregular
Mounding
Multi-stemmed
Multi-trunked
Open
Oval
Prostrate
Pyramidal
Rounded
Spreading
Vase
Weeping

Euphorbia lathyris: Maintenance

Low
Medium
High

Euphorbia lathyris Cultural Conditions

Euphorbia lathyris: Light

Dappled Sunlight (Shade through upper canopy all day)
Deep shade (Less than 2 hours to no direct sunlight)
Full sun (6 or more hours of direct sunlight a day)
Partial Shade (Direct sunlight only part of the day, 2-6 hours)

Euphorbia lathyris: Soil pH

Acid (<6.0)
Alkaline (>8.0)
Neutral (6.0-8.0)

Euphorbia lathyris: Soil Drainage

Frequent Standing Water
Good Drainage
Moist
Occasional Flooding
Occasionally Dry
Occasionally Wet
Very Dry

Euphorbia lathyris: Available Space To Plant

12 inches-3 feet
12-24 feet
24-60 feet
3 feet-6 feet
6-feet-12 feet
Less than 12 inches
more than 60 feet

Euphorbia lathyris: NC Region

Coastal
Mountains
Piedmont

Euphorbia lathyris: USDA Plant Hardiness Zone

thermostat
10a
thermostat
10b
thermostat
11a
thermostat
11b
thermostat
1a
thermostat
1b
thermostat
2a
thermostat
2b
thermostat
3a
thermostat
3b
thermostat
4a
thermostat
4b
thermostat
5a
thermostat
5b
thermostat
6a
thermostat
6b
thermostat
7a
thermostat
7b
thermostat
8a
thermostat
8b
thermostat
9a
thermostat
9b

Euphorbia lathyris: Soil Texture

Clay
High Organic Matter
Loam (Silt)
Sand
Shallow Rocky

Euphorbia lathyris Landscape

Euphorbia lathyris: Resistance To Challenges

Black Walnut
Compaction
Deer
Diseases
Drought
Dry Soil
Erosion
Fire
Foot Traffic
Heat
Heavy Shade
Humidity
Insect Pests
Pollution
Poor Soil
Rabbits
Salt
Slugs
Squirrels
Storm damage
Urban Conditions
Voles
Wet Soil
Wind

Euphorbia lathyris: Landscape Location

Coastal
Container
Hanging Baskets
Houseplants
Lawn
Meadow
Naturalized Area
Near Septic
Patio
Pond
Pool/Hardscape
Recreational Play Area
Riparian
Rock Wall
Slope/Bank
Small Space
Vertical Spaces
Walkways
Woodland

Euphorbia lathyris: Problems

Allelopathic
Contact Dermatitis
Frequent Disease Problems
Frequent Insect Problems
Invasive Species
Malodorous
Messy
Poisonous to Humans
Problem for Cats
Problem for Children
Problem for Dogs
Problem for Horses
Short-lived
Spines/Thorns
Weak Wood
Weedy