Martin and Hutchins 1980, Kearney and Peebles 1969

Duration: Annual Nativity: Native Lifeform: Forb/Herb General: Slender erect annual, arising from a single stem and much branched above, 20-40 cm tall, pubescent herbage. Leaves: Opposite, linear-lanceolate, acute, entire, not oblique at base, stipules glandlike, not dentate Flowers: Cyathia hairy, in terminal cymes, denticulate; 5 glands, obcordate, bilobed, with white appendages, twice as long as glands, triangular. Fruits: Capsules smooth, with seeds strongly tuberculate and 4-angled. Ecology: Found in creekbeds and on moist slopes; 3,500-6,000 ft (1067-1829 m); flowers August-October. Distribution: AZ, sw NM, s TX; south to n MEX. Notes: Can be abundant in wet years, distinctive with by being a slender erect annual; and its linear leaves; deeply two lobed gland appendages and two-lobed green glands. Ethnobotany: Unknown, but other species in the genera have uses. Etymology: Euphorbia is named for Euphorbus, which derives from eu, good, and phorbe, meaning well-fed, while bilobata means two lobed. Synonyms: None Editor: SBuckley 2010, FSCoburn 2015