Grayia spinosa

(Hooker) Moquin-Tandon in A. P. de Candolle and A. L. P. P. de Candolle.

in A. P. de Candolle and A. L. P. P. de Candolle., Prodr. 13(2): 119. 1849.

IllustratedEndemic
Basionym: Chenopodium spinosum Hooker Fl. Bor.-Amer. 2: 127. 1838
Synonyms: Atriplex grayi Collotzi ex W. A. Weber
Treatment appears in FNA Volume 4. Treatment on page 307. Mentioned on page 304.

Plants dioecious (rarely monoecious). Stems 3–10 (–15) dm, becoming reddish-brown with whitish ribs exfoliating in strips, older bark dark gray. Leaves of main-stems 1–2.5 (–4.2) cm × 1.5–6 (–10) mm; blade green, apex often whitish. Staminate flowers: perianth segments ± enclosing stamens, 1.5–2 mm; filaments shorter than anthers. Pistillate flowers: stigma protruding through opening in covering formed by accrescent bracts. Fruiting bracts wholly connate, sessile, orbicular to broadly elliptic, 7.5–14 × 6–12 mm, base often abruptly cuneate and stipelike, margins entire, apex retuse, glabrous; wing somewhat thickened near margin, yellowish green, whitish, or pink to red-tinged, smooth, glabrous. Utricles brown, 1.5–2 mm. 2n = 36.


Phenology: Flowering spring–summer.
Habitat: Valleys, foothills, dry, alkaline or scarcely alkaline soils, sagebrush, shadscale, and creosote bush communities
Elevation: 500-2400 m

Distribution

V4 589-distribution-map.gif

Ariz., Calif., Colo., Idaho, Mont., Nev., Oreg., Utah, Wash., Wyo.

Discussion

Grayia spinosa is rarely a codominant. Its fruits are still present through July.

Selected References

None.

Lower Taxa

None.

"dm" is not declared as a valid unit of measurement for this property.

... more about "Grayia spinosa"
Noel H. Holmgren +
(Hooker) Moquin-Tandon in A. P. de Candolle and A. L. P. P. de Candolle. +
slippery +
aromatic +
stipelike +  and cuneate +
Chenopodium spinosum +
spatulate +  and oblanceolate +
persistent +  and deciduous +
reddish-brown +, black +, brown +  and green +
Ariz. +, Calif. +, Colo. +, Idaho +, Mont. +, Nev. +, Oreg. +, Utah +, Wash. +  and Wyo. +
500-2400 m +
pistillate +  and staminate +
flattened +
Valleys, foothills, dry, alkaline or scarcely alkaline soils, sagebrush, shadscale, and creosote bush communities +
glabrate +  and scurfy-puberulent +
2.5 cm25 mm <br />0.025 m <br /> (4.2 cm42 mm <br />0.042 m <br />) +
0.6 cm6 mm <br />0.006 m <br /> (1 cm10 mm <br />0.01 m <br />) +
1cm;2.5cm +
coriaceous +  and succulent +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
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 +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
4(-5)-parted +
papery +  and chartaceous +
Flowering spring–summer. +
in A. P. de Candolle and A. L. P. P. de Candolle., Prodr. +
pointing +  and ascending +
basal +, median +  and position +
exfoliating +
bulbous +  and taprooted +
fusiform +
fleshy +  and fibrous +
tuberculate +
compressed-lenticular +
Illustrated +  and Endemic +
cylindric +
4 (?) +  and 5 (?) +
not jointed +  and branched +
opposite +  and alternate +
reddish-brown +
rounded +
sessile +  and petiolate +
reduced;small +
horizontal +  and vertical +
verrucate +
Atriplex grayi +
Grayia spinosa +
species +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
orbicular;broadly elliptic +
deciduous +, evergreen +, perennial +  and annual +
pink +  and red-tinged +