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balsam apple, concombre grimpant, prickly cucumber, wild cucumber

Leaves

petiole 1–4 cm;

blade 2–8(–12) cm, lobe apex acute, sinuses rounded, surfaces glabrous or slightly scabrous, hair bases pustulate.

Inflorescences

staminate racemes 8–14 cm; pistillate peduncles 2–5 cm.

Flowers

lightly fragrant;

corolla 8–12(–16) mm diam.

Seeds

12–20 mm.

Pepos

3–5 cm, spinules 4–6 mm, glabrous or slightly scabrous.

2n

= 32.

Echinocystis lobata

Phenology Flowering May–Sep(–Oct).
Habitat Bottomland forests and thickets, riparian woods, marshes and marsh edges, thickets in pastures, fencerows, ditches, lake shores, railroad banks, dunes
Elevation 0–2000 m (0–6600 ft)
Distribution
from FNA
AZ; CO; CT; DC; DE; IA; ID; IL; IN; KS; KY; MA; MD; ME; MI; MN; MO; MT; NC; ND; NE; NH; NJ; NM; NY; OH; OK; PA; RI; SD; UT; VA; VT; WA; WI; WV; WY; AB; BC; MB; NB; NS; ON; PE; QC; SK
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Discussion

Echinocystis lobata is sometimes cultivated in arbors for its showy white flowers (staminate) in long inflorescences. Its occurrence in the western United States is sporadic.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Source FNA vol. 6, p. 19.
Parent taxa Cucurbitaceae > Echinocystis
Synonyms Sicyos lobatus, Micrampelis lobata
Name authority (Michaux) Torrey & A. Gray: Fl. N. Amer. 1: 542. (1840)
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