Euphorbia maculata, variously called spotted spurge or prostrate spurge, the latter name not to be confused with Euphorbia prostrata, is a fast-growing annual plant in the family Euphorbiaceae, native to North America. It is a common garden and lawn weed in the United States. (Wikipedia)

Euphorbia hirta (sometimes called asthma-plant) is a pantropical weed, possibly native to India. It is a hairy herb that grows in open grasslands, roadsides and pathways. It is widely used as a medicinal herb. (Wikipedia)

Euphorbia prostrata is a species of spurge known by the common name prostrate spurge or prostrate sandmat. (Wikipedia)

Euphorbia serpens is a species of euphorb known by the common name matted sandmat. It is native to South America but it can be found on most continents as an introduced species and often a weed. This is an annual herb forming a mat of prostrate stems which root at nodes where the stem comes in contact with the ground. The oval leaves occur in oppositely arranged pairs, each leaf less than a centimeter long. The... (Wikipedia)

Euphorbia nutans is a species of euphorb known by the common names eyebane and nodding spurge. It is native to much of the United States, Eastern Canada, Mexico, Central America, the Caribbean, and Venezuela. (Wikipedia)

Euphorbia albomarginata (formerly Chamaesyce albomarginata), whitemargin sandmat or rattlesnake weed, is a small low-growing annual, in the spurge family (Euphorbia, Euphorbiaceae) native to desert, chaparral, and grassland habitats of southwestern North America, from southern and central California to Northern Mexico and Louisiana. (Wikipedia)

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Euphorbia fendleri is a species of euphorb known by the common name Fendler's sandmat. It is native to much of the southwestern and central United States and northern Mexico, where it grows in scrub and woodland habitat in desert and plateau regions. This is a mat- or clump-forming reddish-green plant with a crooked, creeping, hairless stem. The leaves are rounded, oval, or spade-shaped, smooth along the edges and generally coming to a point, and not much... (Wikipedia)

Euphorbia melanadenia is a species of euphorb known by the common name red-gland spurge. It is native to the deserts and mountains of Baja California and southern California and Arizona, where it grows in dry, rocky habitat. It is a perennial herb forming a small clump or mat of very slender, tangling red stems. The stems are lined with pairs of slightly woolly oval-shaped leaves 2 to 9 millimeters wide. The tiny inflorescence is a cyathium... (Wikipedia)

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Euphorbia setiloba is a species of euphorb known by the common name Yuma sandmat. It is native to the southwestern United States and northern Mexico, where it grows in dry habitat. This is a small, clumping annual herb with slender stems lined with pairs of tiny hairy leaves. Each leaf is just a few millimeters long and oval in shape with a bluntly pointed tip. The minute inflorescence is a cyathium less than two millimeters wide.... (Wikipedia)

Euphorbia mesembryanthemifolia, commonly called seaside spurge, is a species of flowering plant in the spurge family (Euphorbiaceae). It is native to the Western Hemisphere, where it is found in coastal areas from Florida in the United States south to Colombia and Venezuela, as well as in Bermuda and the Caribbean. Its natural habitat is on beaches and rocky shores. (Wikipedia)

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Euphorbia micromera is a species of euphorb known by the common name Sonoran sandmat. It is native to the southwestern United States from California to Texas, and northern Mexico, where it grows in sandy soils in desert and other dry habitat. It is an annual herb forming a small mat of slender stems. The hairy to hairless leaves are oblong in shape and just a few millimeters long. The tiny inflorescence is a cyathium less than... (Wikipedia)

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