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|Family: Euphorbiaceae||View Description||Dichotomous Key|
|Genus: Euphorbia||View Description||Dichotomous Key|
|Species:||View Description||Dichotomous Key|
Euphorbia spathulata Lam.
Habit: Annual, glabrous. Stem: 0.5--4.5 dm. Leaf: proximal cauline alternate, sessile or +- petioled; stipules 0; blade 1--3 cm, obovate to spoon-shaped, finely toothed, base symmetric, tapered, tip obtuse to notched; distal-most cauline in a whorl of 3(4). Inflorescence: 1° inflorescence branches in umbel-like cluster of 3(4) from axils of whorled leaves and also often from axils of distal alternate leaves; cyathia in leafy-bracted cyme-like clusters; bracts opposite, sessile, triangular-ovate, minutely toothed; involucre < 1.5 mm, bell-shaped; glands 4(5), < 1 mm, transversely oblong or elliptic; petal-like appendage 0. Staminate Flower: 5--10. Pistillate Flower: styles forked +- 1/2. Fruit: 2--3 mm, spheric, lobed, tubercled especially near tip and on lobes. Seed: 1.5--2 mm, ovoid, slightly flattened front-to-back, both sides convex, surface net-like; knob present.
Ecology: Open, generally disturbed places; Elevation: < 1300 m. Bioregional Distribution: CA-FP; Distribution Outside California: to Washington, eastern North America, South America. Flowering Time: Mar--Jun
eFlora Treatment Author: David J. Keil, Thomas J. Rosatti, Mark H. Mayfield & Daryl Koutnik
Jepson Online Interchange
Previous taxon: Euphorbia setiloba
Next taxon: Euphorbia terracina
Citation for this treatment: David J. Keil, Thomas J. Rosatti, Mark H. Mayfield & Daryl Koutnik 2016. Euphorbia spathulata, Revision 1, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=25609, accessed on September 24, 2016.
Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on September 24, 2016.