Grayia

Hooker & Arnott

Bot. Beechey Voy., 387. 1841.

Common names: Hopsage
Etymology: for Asa Gray, 1810–1888, botany professor at Harvard, for many years the pre-eminent American botanist
Treatment appears in FNA Volume 4. Treatment on page 306. Mentioned on page 260, 304.

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. Fruiting structure: bracts forming flattened, samaralike fruiting structure around utricle, margins thickened, spongy within; pericarp free. Seeds vertical, compressed-lenticular, seed-coat brown, tuberculate; embryo annular; perisperm copious. x = 18.

Distribution

w United States

Discussion

Species 1.

Selected References

None.

Lower Taxa

... more about "Grayia"
Rounded (?) +  and Obtuse (?) +
Noel H. Holmgren +
Hooker & Arnott +
slippery +
aromatic +
tapering +
spatulate +  and oblanceolate +
persistent +  and deciduous +
reddish-brown +, black +, brown +  and green +
Hopsage +
w United States +
for Asa Gray, 1810–1888, botany professor at Harvard, for many years the pre-eminent American botanist +
flattened +
glabrate +  and scurfy-puberulent +
coriaceous +  and succulent +
not winged +  and winged +
lobed +  and serrate-dentate +
inferior +, half-inferior +  and superior +
crassinucellate +  and bitegmic +
campylotropous +
1 +  and single +
slightly longer +
persistent +  and deciduous +
4(-5)-parted +
papery +  and chartaceous +
Bot. Beechey Voy., +
pointing +  and ascending +
basal +, median +  and position +
bulbous +  and taprooted +
fusiform +
fleshy +  and fibrous +
tuberculate +
compressed-lenticular +
cylindric +
4 (?) +  and 5 (?) +
not jointed +  and branched +
opposite +  and alternate +
rounded +
sessile +  and petiolate +
reduced;small +
horizontal +  and vertical +
verrucate +
Chenopodiaceae +
deciduous +, evergreen +, perennial +  and annual +
monoecious +  and dioecious +