Flora of North America species comparison

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Grayia

hop-sage
Habit Shrubs, dioecious or monoecious, spinescent; herbage scurfy-puberulent when young, mostly with branched hairs, becoming glabrate.
Stems

erect, much branched, woody throughout, not jointed, forming a rounded bush;

younger branches ribbed, rigid;

lateral branches becoming spinescent.
Leaves

alternate, succulent or coriaceous;

blade with midveins prominent, spatulate to oblanceolate, sometimes narrowly so, base gradually tapering to petiole, margins entire, apex rounded to obtuse.
Inflorescences

terminal, spikelike clusters.
Flowers

unisexual;

staminate in 2–5-flowered clusters in bract axils, perianth 4(–5)-parted, equaling or slightly longer than stamens, stamens 4–5;

pistillate in 1–few-flowered clusters per glomerule, each closely invested by 2 wholly united bracts, perianth absent;

stigma 2-lobed.
Seeds

vertical, compressed-lenticular, seed coat brown, tuberculate;

embryo annular;

perisperm copious.
Fruiting

structure: bracts forming flattened, samaralike fruiting structure around utricle, margins thickened, spongy within;

pericarp free.
x

= 18.

Grayia
Distribution
from USDA
w United States
[BONAP county map]
Discussion

Species 1.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 4, p. 306. Author: Noel H. Holmgren.
Parent taxa Chenopodiaceae
Subordinate taxa
G. spinosa
Name authority Hooker & Arnott: Bot. Beechey Voy., 387. (1841)
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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