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Euphorbia brachycera - horned spurge

Scientific Family
Euphorbiaceae
Synonyms
Euphorbia lurida, Euphorbia montana, Euphorbia odontadenia, Euphorbia robusta, Tithymalus brachycera, Tithymalus montanus
Plant type
Forbs and Subshrubs
Origin
Native
Lifecycle
Perennial
Height
To 12 inches
Riparian
Yes

Grows in a tangled mass up to several feet wide and over a foot tall in a moist area or spindly and solitary in dry conditions.

A herbaceous plant arising from a woody base with green ovate to spatculate to elliptic leaves with smooth edges that are not thickened or spirally arranged.

Habitat

Semi-desert, foothills, canyons, chaparral, moist sandy areas to dry Pinyon-Juniper forests to Ponderosa and low conifer forests.

Plant Community
Desert Scrub
Disturbed Areas
Grasslands
Interior Chaparral
Montane Conifer Forest
Pinyon Juniper Woodlands
Riparian
Low elevation
2500
High elevation
8000

Flower Characteristics

What appears to be a flower is instead a cyathium, a cup-like structure that houses a central pistillate flower surrounded by several staminate flowers. The yellow horned structures are not true petals but merely extensions of the cyathium.

Flower color
Yellow to orange
Flower shape
Other
Tubular
No
First bloom month
April
Last bloom month
September
Flower clusters
Other

Leaf and Stem Characteristics

Leaves have no stalks and attach directly to the main stem.

Leaf type
Simple
Leaf color
Green with reddish margins
Leaf shape
Narrow
Leaf margin
Smooth
Leaf attachment
Alternate
Leaves clasp
No
Leaf hairs
None
Spines
No

Fruit and Seed Characteristics

Nodding 3-celled and 3-seeded capsule.

Fruit type
Capsule