Boerhavia linearifolia

A. Gray

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

Synonyms: Boerhavia lindheimeri Standley Boerhavia tenuifolia A. Gray ex J. M. Coulter
Treatment appears in FNA Volume 4. Treatment on page 22. Mentioned on page 18.

Herbs, perennial, sometimes slightly woody at base; taproot long, ropelike, ± woody. Stems usually erect or ascending, occasionally decumbent, sparingly branched throughout, 2–5 (–9) dm, hirsute, puberulent, or glandular basally, hair types often mixed, glandular-puberulent, glabrous, or occasionally puberulent and sparsely hispid distally. Leaves mostly in basal 2/3 of plant; larger leaves with petiole 1–5 mm, blade lanceolate to linear, rarely ovate, 15–35 × 1–15 mm (distal leaves usually longer, narrower), adaxial surface glabrous or sparsely hispid, occasionally glandular-pubescent, sometimes punctate, abaxial surface usually paler than adaxial, glabrous or sparsely hispid, occasionally glandular-pubescent, usually punctate with small patches of large gray to dark-brown cells, base obtuse, truncate, or rounded, margins entire and revolute, apex usually acute, sometimes obtuse or rounded. Inflorescences terminal and axillary, forked ca. 2–4 times unequally, open, without sticky internodal bands; branches strongly ascending, terminating in loose, 1–few-flowered, cymose clusters. Flowers: pedicel 1–2 (–5) mm; bracts at base of perianth persistent, 3, lanceolate to ovate-acuminate, 1–2 mm; perianth purplish-pink, widely funnelform beyond constriction, 4–7 mm; stamens 5 (–6), well exserted. Fruits borne singly (or 2–3 in open clusters), dark gray-brown, oblong-clavate, 2.5–3.5 × 1.2–1.5 mm (l/w: (1.7–) 2.1–3.5), apex round, usually glabrous; ribs (4–) 5, broadly rounded, smooth, edges sharp and slightly overhanging sulcus; sulci about as wide as base of ribs, smooth, not papillate (very rarely minutely and sparsely puberulent). 2n = ca. 52.


Phenology: Flowering mid spring–late summer.
Habitat: Open, calcareous soils or rock in arid grasslands or shrublands
Elevation: 400-1700 m

Distribution

V4 31-distribution-map.gif

N.Mex., Tex., Mexico (Chihuahua), Mexico (Coahuila)

Discussion

Boerhavia linearifolia has been reported from Alabama, but no documenting specimen has been seen.

Selected References

None.

Lower Taxa

None.

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

... more about "Boerhavia linearifolia"
glandular-pubescent +, hispid +  and glabrous +
glandular-pubescent +, hispid +  and glabrous +
Richard W. Spellenberg +
A. Gray +
glutinous +
symmetric +  and asymmetric +
persistent +
rounded +, truncate +  and obtuse +
unequal +
woody +, leathery +  and fleshy +
1.5 cm15 mm <br />0.015 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
ovate;lanceolate;linear +
1mm;15mm +
deciduous +  and persistent +
distinct +
lanceolate +  and ovate-acuminate +
minute +  and not accrescent +
corollalike +  and petaloid +
gray +  and dark-brown +
N.Mex. +, Tex. +, Mexico (Chihuahua) +  and Mexico (Coahuila) +
400-1700 m +
curved +  and straight +
inconspicuous +  and showy +
1 +  and 80 +
chasmogamous +  and bisexual +
5 (?) +, 2.1 (?) +  and 3.5 (?) +
rounded +
coriaceous +
Open, calcareous soils or rock in arid grasslands or shrublands +
hispid +, puberulent +, glabrous +  and glandular-puberulent +
thyrsiform +, cymose +  and pedunculate +
2-4 times open without sticky internodal bands +
dark gray-brown +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
oblong-clavate +
0.12 cm1.2 mm <br />0.0012 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
unequal +
(4-)5-lobed +
pubescent +  and glabrous +
sinuate +  and entire +
0.2 cm2 mm <br />0.002 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
0.1 cm1 mm <br />0.001 m <br /> (?) +  and 0.2 cm2 mm <br />0.002 m <br /> (?) +
widely +  and campanulate +
constricted +
0.4 cm4 mm <br />0.004 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
0.1 cm1 mm <br />0.001 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
Flowering mid spring–late summer. +
Amer. J. Sci. Arts, ser. +
not papillate +
dark gray-brown +
glandular-pubescent +, glabrous +  and smooth +
oblong-clavate +
1.2mm +  and 1.5mm +
thick +  and thin +
fibrous;fleshy +
membranaceous +
ribbed +, 10-ribbed +  and 5-ribbed +
pubescent +, glabrous +  and warty +
wrinkled +
ascending +  and erect +
fusiform +  and linear +
filiform +
rugose +  and smooth +
Boerhavia lindheimeri +  and Boerhavia tenuifolia +
Boerhavia linearifolia +
Boerhavia +
species +
umbellate +, subumbellate +, spicate +  and cymose +
capitate +  and subcapitate +
singly +  and racemose +
gland-tipped +
expanded +
pubescent +, glabrous +  and glandular +
fusiform +  and ropelike +