Euphorbia hyssopifolia

Hyssopleaf sandmat
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Rosids
Order:	Malpighiales
Family:	Euphorbiaceae
Genus:	Euphorbia
Species:	E. hyssopifolia
Binomial name
	Euphorbia hyssopifolia; L. (1759)
Synonyms
	Anisophyllum hyssopifolium (L.) Haw. (1812) ; Chamaesyce hyssopifolia (L.) Small (1905) ; Chamaesyce brasiliensis (Lam.) Small (1903) ; Chamaesyce jenningsii Millsp. ex Britton (1916) ; Chamaesyce jonesii (Millsp.) Millsp. (1916) ; Chamaesyce nirurioides Millsp. (1914) ; Euphorbia blanchetii Miq. ex Boiss. (1850) ; Euphorbia brasiliensis Lam. (1788) ; Euphorbia brasiliensis var. hyssopifolia (L.) Boiss. (1862) ; Euphorbia domingensis Spreng. ex Boiss. (1862) ; Euphorbia hypericifolia var. falciformis Klotzsch (1843) ; Euphorbia jonesii Millsp. (1890) ; Euphorbia klotzschiana Miq. (1851) ; Euphorbia nirurioides (Millsp.) (1920) ; Euphorbia pulchella Kunth (1817) ; Euphorbia serrulata Vell. (1829) ; Euphorbia stenomeres S.F.Blake (1922) ;

Euphorbia hyssopifolia, known by the common name of hyssopleaf sandmat in English and hierba de pollo ("chicken grass") in Spanish, is a member of the spurge family, Euphorbiaceae. It is an annual herb, native to Central and South America and the Southeastern United States.^[2] It has also been introduced to west Tropical Africa, India, and Australia.^[1]

Description

Arching annual to 80 cm with leaf-bases oblique. Flowers and fruits in small loose clusters. Because it is rather confusable with the usually slightly hairier E. nutans, fruit capsules should always be opened for seeds. The seeds are cross-ridged and rather square-edged in comparison to the more irregular rounder-edged seeds of E. nutans.

Seeds: "brown to grayish white, ovoid, slightly 4-angled in cross section, abaxial faces convex, adaxial faces slightly concave to slightly convex, 1–1.4 × 0.7–1.1 mm, with 2–3 prominent transverse ridges that do not interrupt adaxial keel, or coarsely and inconspicuously pitted-reticulate." FNA (see also FNA nutans)

References

^ ^a ^b ^c "Euphorbia hyssopifolia L.", Plants of the World Online, Royal Botanic Gardens, Kew, retrieved 4 December 2022
^ "Euphorbia hyssopifolia". Global Biodiversity Information Facility. Retrieved 4 December 2022.

Media related to Euphorbia hyssopifolia at Wikimedia Commons Data related to Euphorbia hyssopifolia at Wikispecies

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[POWO_101676-2-1] "Euphorbia hyssopifolia L.", Plants of the World Online, Royal Botanic Gardens, Kew, retrieved 4 December 2022

[2] "Euphorbia hyssopifolia". Global Biodiversity Information Facility. Retrieved 4 December 2022.

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