(L.) S. F. Blake in Standl., Contr. U.S. Natl. Herb. 23:594.1923
Bejuco amarrar, Bejuco mulato, Elsota
Scandent shrub or liana, usually to 4 m but sometimes also in canopy; strigose all over but the upper leaf surface glabrate; stems bearing raised round glands at the base of each petiole. Petioles 5-10 mm long; blades ovate-elliptic, bluntly acuminate at apex, rounded to obtuse at base, 6-11 cm long, 3-4.5 cm wide (much reduced and oval on flowering branches). Racemes terminal or axillary, to 11 cm long; pedicels ca 5 mm long; flowers 1.5-2 cm broad; enlarged sepals 2, petaloid, lavender, ± rounded and clawed, the other 3 ovate, to ca 3 mm long; petals 3, red-violet, the upper petals subspatulate, 5-7 mm long, the lower 1 keeled, 7.5-10 mm long, enclosing sexual parts, the apex with a folded, fimbriate crest; stamens 8, united basally into a thick sheath, the apical one-third free, tapered, the inside pubescent; anthers much shorter than stigma; style curved inward; stigmas bilobed. Samaras 4-6 cm long; wing ± oblanceolate, 3-5 cm long, 1-1.5 cm wide; seed apical, 5-8 mm long, margined above, the margin extended above into a small triangular lobe partly free from rest of wing. Croat 8660.
Occasional, along the edge of the lake, in older clearings, or at the edges of clearings; rarely high in the forest. Flowers in the dry season, usually from February to April (rarely in May in the early rainy season). Most fruits are mature in the late dry season.
Stems sometimes twine in a manner characteristic of the Hippocrateaceae (78).
Mexico to Peru; Lesser Antilles. In Panama, known from tropical dry forest in Coclé and Panama, from premontane moist forest in Los Santos and Panama, from tropical moist forest in the Canal Zone, Bocas del Toro, Panama, and Darien, and from premontane wet forest in Coclé and Panama.
See Fig. 314.