Tidestromia suffruticosa var. oblongifolia

(S. Watson) Sánchez del Pino & Flores Olvera

Novon 12: 406. 2002.

Common names: Honeysweet
Basionym: Cladothrix oblongifolia S. Watson Proc. Amer. Acad. Arts 17: 376. 1882
Synonyms: Cladothrix cryptantha S. Watson Tidestromia oblongifolia (S. Watson) Standley Tidestromia oblongifolia subsp. cryptantha (S. Watson) Wiggins
Treatment appears in FNA Volume 4. Treatment on page 441.

Leaf-blades usually oblong (ovate-oblong, circular, lanceolate, or ovate). Internodes of secondary branches subtending involucres in fruit usually reduced and crowded.


Phenology: Flowering year-round.
Habitat: Desert shrub, mesquite dunes, creosote bush scrub, crevices of lava rocks, roadsides, in sandy, clayey, gravelly, limestone, travertine, alluvial, and saline soils, basaltic rocky loam
Elevation: 0-1300 m

Distribution

V4 868-distribution-map.gif

Ariz., Calif., Nev., Tex., Utah, Mexico (Baja California), Mexico (Sonora)

Discussion

F. Shreve and I. L. Wiggins (1964) recognized two subspecies of Tidestromia oblongifolia: subsp. oblongifolia characterized by oblong leaf blades 2–15 mm wide and involucres ca. 1 mm, and subsp. cryptantha, with orbiculate leaf blades 2–7 mm wide and involucres ca. 3–4 mm. These characters show a wide range of variation; the described taxa do not appear to be distinct subspecies.

Selected References

None.

Lower Taxa

None.
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.09 cm0.9 mm <br />9.0e-4 m <br />) +
glabrous +  and lanuginose +
obtuse;acute;crenate;obtuse;acute;obtuse;acute +
Ivonne Sánchez del Pino +  and Steven E. Clemants +
(S. Watson) Sánchez del Pino & Flores Olvera +
oblique +, attenuate +, cordate +  and cuneate +
Cladothrix oblongifolia +
0.2 cm2 mm <br />0.002 m <br /> (2.7 cm27 mm <br />0.027 m <br />) +
reniform +, circular +, ovate +, lanceolate +  and ovate-oblong +
chartaceous +  and fleshy +
0.2 cm2 mm <br />0.002 m <br /> (2.1 cm21 mm <br />0.021 m <br />) +
0.08 cm0.8 mm <br />8.0e-4 m <br /> (?) +  and 0.16 cm1.6 mm <br />0.0016 m <br /> (?) +
depressed-ovate +  and ovate +
0.08 cm0.8 mm <br />8.0e-4 m <br /> (?) +  and 0.16 cm1.6 mm <br />0.0016 m <br /> (?) +
0.09 cm0.9 mm <br />9.0e-4 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
0.06 cm0.6 mm <br />6.0e-4 m <br /> (0.14 cm1.4 mm <br />0.0014 m <br />) +
Honeysweet +
Ariz. +, Calif. +, Nev. +, Tex. +, Utah +, Mexico (Baja California) +  and Mexico (Sonora) +
0-1300 m +
peripheral +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
short-pedicellate +  and sessile +
hypogynous +
minute +  and small +
0.17 cm1.7 mm <br />0.0017 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
reduced +
not +  and dehiscent +
Desert shrub, mesquite dunes, creosote bush scrub, crevices of lava rocks, roadsides, in sandy, clayey, gravelly, limestone, travertine, alluvial, and saline soils, basaltic rocky loam +
coriaceous +  and scarious +
petiolate +  and exstipulate +
subopposite +
involucral +
connate +
0 cm0 mm <br />0 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
indurate +
triangular +
crenate +  and entire +
0.03 cm0.3 mm <br />3.0e-4 m <br /> (0.07 cm0.7 mm <br />7.0e-4 m <br />) +
0.5mm;0.9mm +
membranous +
0 cm0 mm <br />0 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
Flowering year-round. +
petiolate +  and sessile +
0.01 cm0.1 mm <br />1.0e-4 m <br /> (0.03 cm0.3 mm <br />3.0e-4 m <br />) +
0.09 cm0.9 mm <br />9.0e-4 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
obovoid +
0.08 cm0.8 mm <br />8.0e-4 m <br /> (0.14 cm1.4 mm <br />0.0014 m <br />) +
0.04 cm0.4 mm <br />4.0e-4 m <br /> (0.09 cm0.9 mm <br />9.0e-4 m <br />) +
suffruticulose +  and suffrutescent +
indehiscent +
subglobose +, deltoid +, 3-fid +  and 2-fid +
0.02 cm0.2 mm <br />2.0e-4 m <br /> (0.05 cm0.5 mm <br />5.0e-4 m <br />) +
membranous +
0 cm0 mm <br />0 m <br /> (0.01 cm0.1 mm <br />1.0e-4 m <br />) +
Cladothrix cryptantha +, Tidestromia oblongifolia +  and Tidestromia oblongifolia subsp. cryptantha +
Tidestromia suffruticosa var. oblongifolia +
Tidestromia suffruticosa +
variety +
yellowish-brown +  and yellowish +
distinct +
1.7mm;2.7mm +
densely lanuginose +  and glabrous +
indurate +, membranaceous +, chartaceous +  and scarious +
0.6mm +  and 1.3mm +
candelabriform +
0.1 cm1 mm <br />0.001 m <br /> (0.18 cm1.8 mm <br />0.0018 m <br />) +
0.8mm +  and 1.6mm +
rhizomatous;rhizomatous +
reddish +, grayish +  and gray-green +
densely lanuginose +  and glabrate +