Leucophyllum frutescens

(Berlandier) I. M. Johnston

Contr. Gray Herb. 70: 89. 1924.

Common names: Texas barometer-bush or silver-leaf purple sage
WeedyIllustrated
Basionyms: Terania frutescens Berlandier Mem. Comis. Limites, 4. 1832
Treatment appears in FNA Volume 17. Treatment on page 333. Mentioned on page 334.

Shrubs erect, not intricately branched, rounded, 5–20 (–30) dm, not appearing thorny. Young stems densely canescent-tomentose, hairs conic to cylindric, dendritic, uneven in height. Leaves alternate, rarely opposite; petiole 1–2 mm; blade obovate to oblong-obovate or obovate-orbiculate, 10–25 (–35) mm, base cuneate, midvein and major lateral-veins raised abaxially, abaxial surface silvery gray, adaxial more greenish, hairs conic to cylindric, dendritic, uneven in height. Flowers: calyx lobes oblong-lanceolate, 3–5 mm; corolla rose lavender to light violet, pink, and rose-pink, rarely white, campanulate, 18–26 mm, tube not notably narrowed. 2n = 34.


Phenology: Flowering (Mar–)May–Sep(–Oct).
Habitat: Rocky and gravelly hillsides, talus, arroyos, ridges, flats, roadcuts, clay dunes, scrub, chaparral, thorn scrub, riparian communities.
Elevation: 10–1200 m.

Distribution

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

Discussion

Leucophyllum frutescens is widely cultivated; horticultural varieties differ in habit, vestiture, and corolla color. The plants are cold hardy and can withstand moderate frosts. As in most or all Leucophyllum species, plants usually flower in response to rain.

In Texas, Leucophyllum frutescens is known from much of the southwestern half of the state.

Selected References

None.

Lower Taxa

None.

... more about "Leucophyllum frutescens"
funnelform-campanulate +
slightly smaller +
James Henrickson +  and Guy L. Nesom +
(Berlandier) I. M. Johnston +
cuneate +
Terania frutescens +
2.5 cm25 mm <br />0.025 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
obovate;oblong-obovate or obovate-orbiculate +
1 cm10 mm <br />0.01 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
not +, leathery +  and fleshy +
0.3 cm3 mm <br />0.003 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
campanulate +
alternate;opposite or subopposite +
Texas barometer-bush or silver-leaf +  and purple sage +
bilabiate +, regular +  and symmetric +
white +, rose-pink +, pink +, rose lavender +  and light violet +
1.8 cm18 mm <br />0.018 m <br /> (2.6 cm26 mm <br />0.026 m <br />) +
Tex. +, Mexico (Coahuila) +, Mexico (Nuevo León) +  and Mexico (Tamaulipas) +
10–1200 m. +
curved +  and straight +
not +  and abundant +
pilose +  and glabrous +
loculicidal +  and septicidal +
Rocky and gravelly hillsides, talus, arroyos, ridges, flats, roadcuts, clay dunes, scrub, chaparral, thorn scrub, riparian communities. +
appressed-stellate +
glabrescent +
conic;cylindric +
opposite +  and alternate +
persistent +
cauline +  and basal +
linear +  and oblong-lanceolate or oblong +
slightly smaller +
tenuinucellate +, unitegmic +  and hemitropous +
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
Flowering (Mar–)May–Sep(–Oct). +
Contr. Gray Herb. +
connate +  and distinct +
Weedy +  and Illustrated +
1/4 (?) +  and 1/3 (?) +
Leucophyllum frutescens +
Leucophyllum +
species +
narrowed +
not thorny +  and branched +
perennial +, biennial +  and annual +