FNA: Gomphrena sonorae

	Gomphrena sonorae
	Sonoran globe-amaranth
Habit	Plants perennial or annual, not cespitose, 1.5–6 dm; roots primary, woody or fibrous.
Stems	erect or ascending, sparsely pilose, glabrate.
Leaves	sessile or petiolate; petiole to 0.9 cm; blade green, elliptic, oblong, oblanceolate, or linear, 3–10 × 0.5–1.2 cm, sparsely pilose.
Inflorescences	heads white, globose, 0.8–1.3 mm diam., subtended by 2 leaves; bractlets white, not crested.
Flowers	tube densely lanose proximally; perianth lobes white, oblong, 3.5–4 mm, hyaline, apex rounded to emarginate.
Seeds	1–1.5 mm.
Utricles	ovoid, 2.2 mm, apex acute.

	Gomphrena sonorae
Phenology	Flowering late summer–winter.
Habitat	Sandy slopes, open woodlands, scrub, dry streambeds
Elevation	900-1800 m (3000-5900 ft)
Distribution	AZ; NM; Mexico [WildflowerSearch map] [BONAP county map]
Source	FNA vol. 4, p. 453.
Parent taxa	Amaranthaceae > Gomphrena
Sibling taxa	G. caespitosa, G. globosa, G. haageana, G. martiana, G. nealleyi, G. nitida, G. serrata, G. viridis
Name authority	Torrey: in W. H. Emory, Rep. U.S. Mex. Bound. 2(1): 181. (1859)
Web links	WildflowerSearch iNaturalist (observations) USDA Plants Database LBJ Wildflower Center SEINet Plants of the World Online Encyclopedia of Life Wikipedia Google Image Search

Sonoran globe-amaranth

Habit

Plants perennial or annual, not cespitose, 1.5–6 dm; roots primary, woody or fibrous.

Stems

erect or ascending, sparsely pilose, glabrate.

Leaves

sessile or petiolate;

petiole to 0.9 cm;

blade green, elliptic, oblong, oblanceolate, or linear, 3–10 × 0.5–1.2 cm, sparsely pilose.

Inflorescences

heads white, globose, 0.8–1.3 mm diam., subtended by 2 leaves;

bractlets white, not crested.

Flowers

tube densely lanose proximally;

perianth lobes white, oblong, 3.5–4 mm, hyaline, apex rounded to emarginate.

Seeds

1–1.5 mm.

Utricles

ovoid, 2.2 mm, apex acute.

Phenology

Flowering late summer–winter.

Habitat

Sandy slopes, open woodlands, scrub, dry streambeds

Elevation

900-1800 m (3000-5900 ft)

Distribution

AZ; NM; Mexico

Source

Parent taxa

Sibling taxa

Name authority

Torrey: in W. H. Emory, Rep. U.S. Mex. Bound. 2(1): 181. (1859)

Web links

Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).

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