Anulocaulis eriosolenus

(A. Gray) Standley

Contr. U.S. Natl. Herb. 12: 375. 1909.

Basionyms: Boerhavia eriosolena A. Gray Amer. J. Sci. Arts, ser. 2, 15: 322. 1853
Treatment appears in FNA Volume 4. Treatment on page 29.

Herbs, stout or slender, short-lived perennial or annual. Stems 0.2–1.8 m. Leaves: 2–3 pairs near base; petiole 2–7 cm; blade broadly ovate to almost round, 2–11 × 2–13 cm, base shallowly cordate to ± truncate, apex rounded or obtuse, adaxial surface yellow-green, abaxial surface much paler, both surfaces sparsely villous-hispid with blackish based hairs. Flowers usually borne singly on branchlets of inflorescence; perianth 8–9 mm, tube white to pink or pale lavender [magenta], finely pubescent, limbs white to pink or pale lavender [magenta], gradually flared from tube; stamens 5, exserted 4–6 mm. Fruits bluntly 5-angled, turbinate, 2.6–3.8 × 2.4–3.4 mm, sometimes secreting mucilage (especially southern populations) when wetted; ribs 10, faint, linear; equatorial flange or ridge absent. 2n = 24.


Phenology: Flowering late spring-mid fall.
Habitat: Sandy, gravelly limestone outwash fans, or calcareous silty soils, gypsum
Elevation: 600-1200 m

Distribution

V4 46-distribution-map.gif

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

Discussion

The perianth tube of Anulocaulis eriosolenus elongates two to seven times its length after the limb of the perianth wilts.

Selected References

None.

Lower Taxa

None.

"thick" is not a number.

... more about "Anulocaulis eriosolenus"
wrinkled +  and smooth +
coriaceous +
Richard W. Spellenberg +
(A. Gray) Standley +
glutinous +
shallowly cordate +  and more or less truncate +
unequal +
woody +, leathery +  and fleshy +
Boerhavia eriosolena +
2 cm20 mm <br />0.02 m <br /> (11 cm110 mm <br />0.11 m <br />) +
round;ovate to almost;ovate +
succulent +  and fleshy +
2cm;13cm +
opaque +  and dark +
persistent +
distinct +
lanceolate +
minute +  and not accrescent +
corollalike +  and petaloid +
Tex. +, Mexico (Chihuahua) +  and Mexico (Coahuila) +
600-1200 m +
curved +  and straight +
inconspicuous +  and showy +
1 +  and 80 +
chasmogamous +  and bisexual +
2.6mm;3.8mm +
turbinate +  and 5-angled +
constricted +
0.24 cm2.4 mm <br />0.0024 m <br /> (0.34 cm3.4 mm <br />0.0034 m <br />) +
Sandy, gravelly limestone outwash fans, or calcareous silty soils, gypsum +
blackish based +
lateral +  and terminal +
white +  and pink or pale lavender +
pubescent +  and glabrous +
sinuate +  and entire +
tubular-funnelform +
constricted +
0.8 cm8 mm <br />0.008 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
2 cm20 mm <br />0.02 m <br /> (7 cm70 mm <br />0.07 m <br />) +
Flowering late spring-mid fall. +
Contr. U.S. Natl. Herb. +
glandular-puberulent +
thick +  and thin +
fibrous;fleshy +
membranaceous +
ribbed +, 10-ribbed +  and 5-ribbed +
pubescent +, glabrous +  and warty +
wrinkled +
erect +  and ascending +
20 cm200 mm <br />0.2 m <br /> (180 cm1,800 mm <br />1.8 m <br />) +
fusiform +  and linear +
filiform +
villous-hispid +
Anulocaulis eriosolenus +
Anulocaulis +
species +
gland-tipped +
white;pink or pale lavender +
abruptly flared;5-lobed +
annual +, perennial +  and short-lived +
pubescent +  and glabrate +
slender +  and stout +