Metaplexis japonica (Thunb.) Makino

  • Authority

    Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.

  • Family

    Apocynaceae

  • Scientific Name

    Metaplexis japonica (Thunb.) Makino

  • Description

    Species Description - Twining perennial herb to 4 m, glabrous or nearly so; lvs cordate-ovate, 5–10 cm, glaucous beneath; peduncles 3–6 cm; fls in short, raceme-like or irregular cymes on pedicels 5–10 mm; cor lavender or purplish or whitish, the flaring tube only 2–3 mm, the lobes 7–8 mm; style-tip prolonged 6–8 mm, shortly bifurcate; fr lance-ovoid, 4–7 cm, tuberculate; 2n=22. Native of e. Asia, intr. as a cornfield-weed in Io. June, July.