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Aristolochia tomentosa Sims

Kingdom: Plantae Rank: Species Parent: Aristolochia Status: Invalid Reason: unverified

Common Names:

  • WOOLLY DUTCHMAN'S-PIPE - English, United States of America
  • PIPEVINE - English, United States of America

Morphological Description

Diagnosis: Vine to 25 m long, densely pubescent except on old growth; leaf blades cordate, 3- ribbed from base; petioles 1-5.5(-9) cm long; flowers solitary (rarely paired), axillary; perianth green or yellowish green with brown or purplish stripes inside, with curved, funnelform tube abruptly inflated above the ovary, and flaring limb; stamens 6, united with style; anthers sessile; pistil 1; ovary appearing inferior (tightly enclosed by base of perianth tube); fruit a cylindric capsule to 8 cm long and 3 cm in diam.; seeds flat, triangular.


Ecology: This species is presumed poisonous in nature.

Notes: Thickets and woods, sandy or silty soils, frequent, but not often found in flower; Denton, Grayson, Hood, Somervell, Tarrant, and Wise cos., also Dallas Co. (Pfeifer 1966); se and e TX w to West Cross Timbers Apr. Presumably contains aristolochic acid. (tomentosa: densely woolly, with matted hairs)