Euphorbia florida

Engelmann in W. H. Emory

Rep. U.S. Mex. Bound. 2(1): 189. 1859

Common names: Chiricahua Mountain sandmat
Synonyms: Chamaesyce florida (Engelmann) Millspaugh
Treatment appears in FNA Volume 12. Treatment on page 267. Mentioned on page 255.

Herbs, annual, with slender taproot. Stems erect, 15–60 cm, usually glabrous, rarely puberulent. Leaves opposite; stipules distinct, divided into 3–4 subulate-filiform divisions, 0.4–1.6 mm, usually glabrous, rarely puberulent; petiole 0.5–2.5 mm, glabrous; blade usually linear, rarely to narrowly elliptic, 10–40(–60) × 0.5–2.5 mm, base symmetric, attenuate, margins serrulate, often revolute, apex acute, surfaces usually glabrous, rarely puberulent; obscurely pinnately veined. Cyathia solitary at nodes or in small, cymose clusters at branch tips; peduncle 1.2–8.1 mm. Involucre obconic, 1.7–2.4 × 1.5–2.1 mm, glabrous; glands 4, greenish yellow to slightly pink, circular to oblong, 0.4–0.5 × 0.4–0.6 mm; appendages white to pink, obovoid, circular, flabellate, or oblong, 0.8–2.9 × 1–2.8 mm, distal margin entire. Staminate flowers 25–35. Pistillate flowers: ovary glabrous; styles 0.8–1.4 mm, 2-fid entire length. Capsules oblate, 2.2–2.5 × 2.7–3.1 mm, glabrous; columella 1.8–2.1 mm. Seeds light gray to light brown, ovoid, slightly 4-angled in cross section, 1.6–2 × 1.3–1.7 mm, with 2 or 3 well-developed transverse ridges.


Phenology: Flowering and fruiting summer–late fall.
Habitat: Sandy flats, gravelly washes, rocky hillsides, talus slopes, desert scrub, desert grasslands, mesquite woodlands, rarely oak woodlands.
Elevation: 600–1300 m.

Distribution

V12 657-distribution-map.jpg

Ariz., Mexico (Sinaloa, Sonora).

Discussion

Euphorbia florida is known in the flora area from Coconino County south to the Mexican border

Selected References

None.

Lower Taxa

None.

... more about "Euphorbia florida"
Victor W. Steinmann +, Jeffery J. Morawetz +, Paul E. Berry +, Jess A. Peirson +  and Ya Yang +
Engelmann in W. H. Emory +
Anisophyllum +
Chiricahua Mountain sandmat +
Ariz. +, Mexico (Sinaloa +  and Sonora). +
600–1300 m. +
Sandy flats, gravelly washes, rocky hillsides, talus slopes, desert scrub, desert grasslands, mesquite woodlands, rarely oak woodlands. +
Flowering and fruiting summer–late fall. +
Rep. U.S. Mex. Bound. +
Chamaesyce florida +
Euphorbia florida +
Euphorbia sect. Anisophyllum +
species +