Boerhavia wrightii

A. Gray

Amer. J. Sci. Arts, ser. 2, 15: 322. 1853.

Treatment appears in FNA Volume 4. Treatment on page 25. Mentioned on page 18.

Herbs, annual; taproot tapered, soft or ± woody. Stems erect or ascending, unbranched in small plants to ca. 1–5 times branched throughout, 20–60 dm, densely glandular-pubescent throughout. Leaves mostly in basal 1/2; larger leaves with petiole 5–35 mm, blade ovate-triangular, ovate, or broadly lanceolate, 15–55 × 7–35 mm (distal leaves smaller, proportionately narrower), adaxial surface usually pubescent, often glandular, sometimes glabrate but with hairs along midrib, abaxial surface similar, somewhat paler, both surfaces often finely punctate with groups of brown cells, base usually round to obtuse, occasionally subtruncate, margins ± sinuate, apex acute, occasionally obtuse. Inflorescences terminal, branched ca. 1–4 times unequally, without sticky internodal bands; branches strongly ascending, terminating in spicate or racemose flower clusters, axis 10–35 mm. Flowers: pedicel 0.3–0.7 mm; bracts at base of perianth persistent, 1–2, ovate-acuminate, 1.5–4 mm; perianth whitish to pale-pink (rarely golden yellow), campanulate distal to constriction, 1.2–1.4 mm; stamens 2–3, included or barely exserted. Fruits 4–15 per cluster, well spaced to completely overlapping, straw colored to tan at maturity, broadly obovoid, 2.1–2.5 × 1–2 mm (l/w: 1.3–2.1), apex rounded, glabrous; ribs 4 (–5), broadly acute, never winged, slightly rugose adjacent to sulci; sulci 0.5–1 times as wide as base of ribs, coarsely transversely rugose, not papillate. 2n = 54.


Phenology: Flowering summer.
Habitat: Sandy soils, among desert shrubs
Elevation: 400-1200 m

Distribution

V4 37-distribution-map.gif

Ariz., Calif., Nev., N.Mex., Tex., Utah, Mexico (Chihuahua), Mexico (Sonora)

Discussion

Selected References

None.

Lower Taxa

None.

"thin" is not a number.

... more about "Boerhavia wrightii"
glabrate +  and pubescent +
spaced +  and completely overlapping +
straw colored;tan +
2.1mm +  and 2.5mm +
rounded;obovoid;obtuse;acute +
1mm +  and 2mm +
Richard W. Spellenberg +
A. Gray +
1 cm10 mm <br />0.01 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
glutinous +
persistent +
1 +  and 2 +
usually round +  and obtuse +
unequal +
woody +, leathery +  and fleshy +
1.5 cm15 mm <br />0.015 m <br /> (5.5 cm55 mm <br />0.055 m <br />) +
lanceolate;ovate;lanceolate;ovate;ovate-triangular +
0.7 cm7 mm <br />0.007 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
deciduous +  and persistent +
distinct +
ovate-acuminate +
minute +  and not accrescent +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
corollalike +  and petaloid +
Ariz. +, Calif. +, Nev. +, N.Mex. +, Tex. +, Utah +, Mexico (Chihuahua) +  and Mexico (Sonora) +
400-1200 m +
curved +  and straight +
inconspicuous +  and showy +
1 +  and 80 +
chasmogamous +  and bisexual +
4 +  and 15 +
obpyramidal +, obovoid +, oblong-clavate +, clavate +  and fusiform +
coriaceous +
Sandy soils, among desert shrubs +
1-4 times without sticky internodal bands +
unequal +
(4-)5-lobed +
pubescent +  and glabrous +
0.03 cm0.3 mm <br />3.0e-4 m <br /> (?) +  and 0.07 cm0.7 mm <br />7.0e-4 m <br /> (?) +
whitish;pale-pink +
campanulate +
constricted +
0.12 cm1.2 mm <br />0.0012 m <br /> (0.14 cm1.4 mm <br />0.0014 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
Flowering summer. +
1-5 times branched 20-60 dm densely glandular-pubescent +
Amer. J. Sci. Arts, ser. +
glandular-pubescent +, glabrous +  and smooth +
thick +  and thin +
fibrous;fleshy +
membranaceous +
ribbed +, 10-ribbed +  and 5-ribbed +
pubescent +, glabrous +  and warty +
wrinkled +
exserted +  and included +
ascending +  and erect +
1-5 times branched 20-60 dm densely glandular-pubescent +
fusiform +  and linear +
filiform +
not papillate +  and rugose +
0.5-1 times as wide as base +
woody +  and soft +
Boerhavia wrightii +
Boerhavia +
species +
umbellate +, subumbellate +, spicate +  and cymose +
capitate +  and subcapitate +
singly +  and racemose +
gland-tipped +
expanded +
pubescent +, glabrous +  and glandular +
fusiform +  and ropelike +