Lenophyllum texanum

(J. G. Smith) Rose

Smithsonian Misc. Collect. 47: 162. 1904,.

Illustrated
Basionym: Sedum texanum J. G. Smith Rep. (Annual) Missouri Bot. Gard. 6: 114, plate 50. 1895
Treatment appears in FNA Volume 8. Treatment on page 225.

Plants tufted, with shoots from axils of basalmost leaves, dying to base. Stems 1–4 (–7) dm × 1–3 mm, with 5–8 leaf pairs near base and to 15 pairs in all. Leaves easily detached and rooting; blade 4–10 mm wide, 3–5 mm thick, apex acuminate with tip 1 mm. Inflorescences of compact, 1 (–3) -flowered cincinni, 5–20-branched, 2–15 cm × 12–20 mm; branches mostly 1-flowered. Flowers: sepals 2.5–4 × 1–2.5 mm; petals 5–6 × 2 mm; corolla 3.5 × 5–7 mm (open). Follicles brown, 7–8 mm. Seeds ca. 0.6 mm. 2n = 88.


Phenology: Flowering fall–spring.
Habitat: Sand or sandy soil and on "clay dunes" near coast
Elevation: 0-50 m

Distribution

V8 470-distribution-map.gif

Tex., Mexico (Nuevo León), Mexico (Tamaulipas)

Discussion

Lenophyllum texanum is abundant locally, forming mats, often under cacti and other shrubs on the coastal plain and in the lower Rio Grande valley. J. N. Rose (1923) wrote that it grew most prolifically under glass and was in danger of becoming a pernicious weed in greenhouses, the leaves easily dropping off and each at once starting a new colony.

Selected References

None.

Lower Taxa

None.

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

... more about "Lenophyllum texanum"
perigynous +  and hypogynous +
acuminate +
Reid V. Moran +
(J. G. Smith) Rose +
Sedum texanum +
lobed +  and toothed +
planoconvex +, ovatelanceolate +  and oblanceolate +
1 cm10 mm <br />0.01 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
0.4 cm4 mm <br />0.004 m <br /> (1 cm10 mm <br />0.01 m <br />) +
not circumscissile +
whorled +, opposite +  and alternate +
not circumscissile +
3.5 cm35 mm <br />0.035 m <br /> (?) +
0.5 cm5 mm <br />0.005 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
Tex. +, Mexico (Nuevo León) +  and Mexico (Tamaulipas) +
0-50 m +
5-merous +  and subsessile +
0.7 cm7 mm <br />0.007 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
Sand or sandy soil and on "clay dunes" near coast +
2 cm20 mm <br />0.02 m <br /> (15 cm150 mm <br />0.15 m <br />) +
axillary +  and terminal +
1.2 cm12 mm <br />0.012 m <br /> (2 cm20 mm <br />0.02 m <br />) +
detached +
subquadrate +
semi-inferior +  and superior +
tenuinucellate +, crassinucellate +  and bitegmic +
perigynous +  and hypogynous +
yellow often marked with red +, dull +  and buff +
distinct +
2 cm20 mm <br />0.02 m <br /> (?) +
Flowering fall–spring. +
(3-)4-5(-12)[-30+]-carpellate +
Smithsonian Misc. Collect. +
ellipsoid +
0.6 cm6 mm <br />0.006 m <br /> (?) +
distinct +
subequal +
0.1 cm1 mm <br />0.001 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
1 +  and many +
Illustrated +
adnate +  and free +
antipetalous +
1mm +  and 3mm +
distinct +
outcurved +
2+ times shorter than ovaries +
Lenophyllum texanum +
Lenophyllum +
species +
outcurved +
1 cm10 mm <br />0.01 m <br /> (?) +
not conspicuous +
perennial +, biennial +  and annual +