Aristolochia tomentosa

Sims

Bot. Mag. 33: plate 1369. 1811.

Common names: Pipevine
Endemic
Synonyms: Isotrema tomentosa (Sims) H. Huber
Treatment appears in FNA Volume 3.

Lianas, twining, to 25 m, woody. Young stem ribbed, tomentose. Leaves: petiole 1-5.5 cm. Leaf-blade ovate to reniform, 9-20 × 8-15 cm, base cordate, sinus depth 1-2 cm, apex obtuse to acute; surfaces abaxially tomentose; venation palmate-pinnate. Inflorescences on new growth, axillary, solitary flowers; peduncle not bracteolate, 1-7 cm. Flowers: calyx yellow-green, sharply bent; utricle pendent, globose to cylindric, 0.5-1 × 0.5-0.8 cm; syrinx absent; tube bent, cylindric, 1-3 × 0.5 cm; annulus rugulose; limb yellow, 3-lobed, lobes triangular, 2 × 2 cm, glabrous; gynostemium 3-lobed, globose, 3 mm; anthers 6; ovary 6-locular, 1-7 cm. Capsule ellipsoid to cylindric, 6-8 × 4-6 cm, dehiscence basipetal; valves 3; septa entire, not attached to valves. Seeds flat, triangular, 1 × 1 cm. 2n = 28.


Phenology: Flowering late spring–summer.
Habitat: Alluvial soils along rivers and streams
Elevation: 0–500 m

Distribution

V3 175-distribution-map.gif

Ala., Ark., Fla., Ga., Ill., Ind., Kans., Ky., La., Miss., Mo., N.C., Okla., Tenn., Tex.

Discussion

Aristolochia tomentosa has escaped from cultivation in various places, including Virginia; this is not documented.

Selected References

None.

Lower Taxa

None.

"broad" is not a number.

... more about "Aristolochia tomentosa"
obtuse;acute +
Kerry Barringer +  and Alan T. Whittemore +
red +, green +, brown +  and purple +
cordate +
not fleshy +
merous +  and petaloid +
yellow-green +
enlarged +
4cm +  and 6cm +
ellipsoid +  and cylindric +
Pipevine +
fan--shaped +
Ala. +, Ark. +, Fla. +, Ga. +, Ill. +, Ind. +, Kans. +, Ky. +, La. +, Miss. +, Mo. +, N.C. +, Okla. +, Tenn. +  and Tex. +
0–500 m +
indehiscent +  and loculicidal +
globose +  and 3-lobed +
3 cm30 mm <br />0.03 m <br /> (?) +
Alluvial soils along rivers and streams +
9 cm90 mm <br />0.09 m <br /> (20 cm200 mm <br />0.2 m <br />) +
ovate;reniform +
membranous;leathery +
petiolate +  and simple +
3-lobed +
triangular +
2 cm20 mm <br />0.02 m <br /> (?) +
parietal +, axile +  and placentation +
1 cm10 mm <br />0.01 m <br /> (7 cm70 mm <br />0.07 m <br />) +
not bracteolate +
1 cm10 mm <br />0.01 m <br /> (7 cm70 mm <br />0.07 m <br />) +
1 cm10 mm <br />0.01 m <br /> (5.5 cm55 mm <br />0.055 m <br />) +
Flowering late spring–summer. +
4-6-carpellate +
1 cm10 mm <br />0.01 m <br /> (?) +
triangular +
1 cm10 mm <br />0.01 m <br /> (?) +
not attached +
1 cm10 mm <br />0.01 m <br /> (2 cm20 mm <br />0.02 m <br />) +
procumbent +  and twining +
6 +, 5 +  and 3 +
Isotrema tomentosa +
cylindric +
Aristolochia tomentosa +
Aristolochia +
species +
1 cm10 mm <br />0.01 m <br /> (3 cm30 mm <br />0.03 m <br />) +
cylindric +  and bent +
extended +
0.5 cm5 mm <br />0.005 m <br /> (?) +  and 1 cm10 mm <br />0.01 m <br /> (?) +
globose +  and cylindric +
0.5cm;0.8cm +
liana +  and twining +
8 +, 7 +  and 6 +