The green links below add additional plants to the comparison table. Blue links lead to other Web sites.
enable glossary links

lesser Florida spurge

caper spurge, euphorbe épurge, gopher plant, gopher spurge, mole plant

Habit Herbs, perennial, with spreading rootstock. Herbs, annual or biennial, with taproot.
Stems

erect or ascending, branched, solitary, few, or occasionally densely clumped, previous year's dead stems not persistent, 18–33 cm, glabrous.

erect, unbranched or branched, 200 cm, glabrous, glaucous.

Leaves

alternate;

stipules to 0.1 mm;

petiole minute or absent;

blade linear to filiform, 10–20 × 0.8–1.5(–4) mm, base cuneate, margins entire, often involute, apex rounded, surfaces glabrous;

venation usually obscure, midvein visible at base of wider leaves.

opposite, decussate;

petiole absent;

blade linear to oblong-lanceolate, 30–120 × 3–25 mm, base acute, rounded, cordate or clasping, margins entire, apex acute or subobtuse, sometimes mucronate, surfaces glabrous, abaxial ± glaucous;

venation pinnate, midvein prominent.

Involucre

campanulate, 1.2–2 × 1.3–1.8 mm, glabrous or strigose on distal extreme;

glands 5, red, elliptic, 0.5 × 1 mm;

appendages white, orbiculate, 0.5–0.8 × 1.3–1.5 mm, erose.

campanulate, 1.2–2.3 × 1.4–2.5 mm, glabrous;

glands 4, elliptic, 0.3–0.6 × 1–1.3 mm;

horns divergent, thick, tips rounded, dilated, 0.5–1.4 mm.

Staminate flowers

20–25.

25–30.

Pistillate flowers

ovary glabrous;

styles 0.6–1 mm, 2-fid at apex.

ovary glabrous;

styles 0.7–2.2 mm, 2-fid.

Capsules

globose, 2.3–2.8 × 4.3–5.1 mm, glabrous;

columella 2.5–3.2 mm.

depressed-globose, 9–12 × 12–16 mm, deeply 3-lobed, tardily dehiscent and appearing indehiscent, mesocarp spongy;

cocci rounded, smooth, glabrous;

columella 4–5.2 mm.

Seeds

ashy gray, ovoid, 2.9 × 2 mm, with obscure shallow depressions;

caruncle absent.

brownish or blackish, oblong, 4.5–6 × 3–4.2 mm, rugose, irregularly reticulate;

caruncle substipitate, hat-shaped, 1.6–2 × 1.2–1.5 mm.

Cyathia

in terminal dichasia or pleiochasia;

peduncle 2–6 mm (to 20 mm for central cyathium), glabrous.

peduncle 0–0.5 mm.

Cyathial

arrangement: terminal pleiochasial branches 2–4, each 1–2 times 2-branched;

pleiochasial bracts cordate-lanceolate, shorter and wider than distal leaves;

dichasial bracts distinct, ovate-oblong to lanceolate, base subcordate, margins entire, apex acute;

axillary cymose branches 0–10.

Euphorbia polyphylla

Euphorbia lathyris

Phenology Flowering and fruiting late spring–late fall. Flowering and fruiting winter–fall.
Habitat Open sand and pine savannas. Roadsides, cultivated fields, stream banks, waste places.
Elevation 0–10 m. (0–0 ft.) 0–1800 m. (0–5900 ft.)
Distribution
from FNA
FL
[WildflowerSearch map]
[BONAP county map]
from FNA
AZ; CA; CT; ID; IL; MA; MD; MT; NC; OH; OR; PA; SC; TN; TX; VA; WA; WV; BC; ON; QC; Europe; Asia; Africa [Introduced in North America; introduced also in Mexico, South America, Australia]
[WildflowerSearch map]
[BONAP county map]
Discussion

Euphorbia polyphylla is endemic to sandy habitats in the southern half of peninsular Florida. The species has been reported from coastal Louisiana, but whether those plants represent native occurrences or plantings is unclear (R. D. Thomas and C. M. Allen 1993–1998, vol. 2). The Florida populations are here recognized as the only native occurrences.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Euphorbia lathyris is most likely native to the central and eastern Mediterranean region, but it is widely cultivated and often locally escaped in temperate regions worldwide, as in the flora area.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Source FNA vol. 12, p. 250. FNA vol. 12, p. 304.
Parent taxa Euphorbiaceae > Euphorbia > sect. Alectoroctonum Euphorbiaceae > Euphorbia > subg. Esula
Sibling taxa
E. aaron-rossii, E. abramsiana, E. acuta, E. agraria, E. albomarginata, E. alta, E. angusta, E. antisyphilitica, E. arizonica, E. astyla, E. austrotexana, E. bicolor, E. bifurcata, E. bilobata, E. blodgettii, E. bombensis, E. brachycera, E. capitellata, E. carunculata, E. chaetocalyx, E. chamaesula, E. cinerascens, E. commutata, E. conferta, E. cordifolia, E. corollata, E. crenulata, E. cumulicola, E. cuphosperma, E. curtisii, E. cyathophora, E. cyparissias, E. davidii, E. deltoidea, E. dendroides, E. dentata, E. discoidalis, E. eriantha, E. exigua, E. exserta, E. exstipulata, E. falcata, E. fendleri, E. florida, E. floridana, E. garberi, E. georgiana, E. geyeri, E. glyptosperma, E. golondrina, E. gracillima, E. graminea, E. helioscopia, E. helleri, E. heterophylla, E. hexagona, E. hirta, E. hooveri, E. humistrata, E. hypericifolia, E. hyssopifolia, E. indivisa, E. innocua, E. inundata, E. ipecacuanhae, E. jaegeri, E. jejuna, E. laredana, E. lasiocarpa, E. lata, E. lathyris, E. longicruris, E. lurida, E. macropus, E. maculata, E. marginata, E. meganaesos, E. melanadenia, E. mendezii, E. mercurialina, E. mesembrianthemifolia, E. micromera, E. misera, E. missurica, E. myrsinites, E. nephradenia, E. nutans, E. oblongata, E. ocellata, E. ophthalmica, E. ouachitana, E. parishii, E. parryi, E. pediculifera, E. peplidion, E. peplus, E. perennans, E. pergamena, E. pinetorum, E. platyphyllos, E. platysperma, E. polycarpa, E. polygonifolia, E. porteriana, E. prostrata, E. pubentissima, E. purpurea, E. radians, E. rayturneri, E. revoluta, E. roemeriana, E. rosescens, E. schizoloba, E. serpens, E. serpillifolia, E. serrata, E. serrula, E. setiloba, E. simulans, E. spathulata, E. stictospora, E. strictior, E. telephioides, E. terracina, E. tetrapora, E. texana, E. theriaca, E. thymifolia, E. tithymaloides, E. trachysperma, E. trichotoma, E. vallis-mortae, E. velleriflora, E. vermiculata, E. villifera, E. virgata, E. wrightii, E. yaquiana
E. aaron-rossii, E. abramsiana, E. acuta, E. agraria, E. albomarginata, E. alta, E. angusta, E. antisyphilitica, E. arizonica, E. astyla, E. austrotexana, E. bicolor, E. bifurcata, E. bilobata, E. blodgettii, E. bombensis, E. brachycera, E. capitellata, E. carunculata, E. chaetocalyx, E. chamaesula, E. cinerascens, E. commutata, E. conferta, E. cordifolia, E. corollata, E. crenulata, E. cumulicola, E. cuphosperma, E. curtisii, E. cyathophora, E. cyparissias, E. davidii, E. deltoidea, E. dendroides, E. dentata, E. discoidalis, E. eriantha, E. exigua, E. exserta, E. exstipulata, E. falcata, E. fendleri, E. florida, E. floridana, E. garberi, E. georgiana, E. geyeri, E. glyptosperma, E. golondrina, E. gracillima, E. graminea, E. helioscopia, E. helleri, E. heterophylla, E. hexagona, E. hirta, E. hooveri, E. humistrata, E. hypericifolia, E. hyssopifolia, E. indivisa, E. innocua, E. inundata, E. ipecacuanhae, E. jaegeri, E. jejuna, E. laredana, E. lasiocarpa, E. lata, E. longicruris, E. lurida, E. macropus, E. maculata, E. marginata, E. meganaesos, E. melanadenia, E. mendezii, E. mercurialina, E. mesembrianthemifolia, E. micromera, E. misera, E. missurica, E. myrsinites, E. nephradenia, E. nutans, E. oblongata, E. ocellata, E. ophthalmica, E. ouachitana, E. parishii, E. parryi, E. pediculifera, E. peplidion, E. peplus, E. perennans, E. pergamena, E. pinetorum, E. platyphyllos, E. platysperma, E. polycarpa, E. polygonifolia, E. polyphylla, E. porteriana, E. prostrata, E. pubentissima, E. purpurea, E. radians, E. rayturneri, E. revoluta, E. roemeriana, E. rosescens, E. schizoloba, E. serpens, E. serpillifolia, E. serrata, E. serrula, E. setiloba, E. simulans, E. spathulata, E. stictospora, E. strictior, E. telephioides, E. terracina, E. tetrapora, E. texana, E. theriaca, E. thymifolia, E. tithymaloides, E. trachysperma, E. trichotoma, E. vallis-mortae, E. velleriflora, E. vermiculata, E. villifera, E. virgata, E. wrightii, E. yaquiana
Synonyms Tithymalopsis polyphylla Galarhoeus lathyris, Tithymalus lathyris
Name authority Engelmann ex Chapman: Fl. South. U.S. ed. 2, repr. 2, 694. (1892) Linnaeus: Sp. Pl. 1: 457. (1753) — (as lathyrus)
Web links