Flora of North America species comparison

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Sicyos angulatus

bur cucumber, nimble-kate, one-seed bur or star cucumber, one-seed burr-cucumber, oneseed bur cucumber, sicyos anguleux
Stems

moderately to densely villous-puberulent, hairs glandular-viscid, mixed with stipitate-glandular hairs.
Leaves

petiole 1–7(–10) cm;

blade orbiculate-angulate to broadly ovate-angulate or shallowly (3–)5-lobed, 4–12 × 6–17 cm, terminal lobe deltate-acuminate to ovate-acuminate, basal sinus narrow to broad, margins evenly and minutely green-apiculate-mucronulate, ± ciliate, hairs gland-tipped, surfaces hispidulous-hirsute;

proximal pair of lateral veins divergent from edge of basal sinus.
Inflorescences

staminate 10–21(–34)-flowered, peduncle plus floral axis 30–220 mm; pistillate 8–16-flowered, peduncle 20–50 mm.
Flowers

staminate: corolla white to greenish white, 4–5 mm, stamens prominently exserted; pistillate: sepals not foliaceous, linear to linear-triangular, 0.5–1 mm, corolla 1–2 mm (essentially without a tube);

stigmas 3-lobed.
Pepos

ovoid-beaked, 9–15 mm, echinate, spinules retrorsely barbellate, also densely arachnoid-villous to minutely villosulous, hairs often gland-tipped.

Sicyos angulatus
Phenology Flowering Jun–Oct(–Nov).
Habitat Stream banks, alluvial floodplains, disturbed woods, thickets, clearings, vacant lots, fallow fields, railroad banks
Elevation 0–300 m (0–1000 ft)
Distribution
from FNA
AL; AR; CT; DC; DE; FL; GA; IA; IL; IN; KS; KY; LA; MA; MD; ME; MI; MN; MO; MS; NC; ND; NE; NH; NJ; NY; OH; OK; PA; RI; SC; SD; TN; TX; VA; VT; WI; WV; ON; QC [Introduced in Europe (Austria, Czech Republic, England, Finland, France, Hungary, Italy, Russia, Spain), e Asia (Japan, South Korea, Taiwan)]
[WildflowerSearch map]
[BONAP county map]
Discussion

In Texas, at the southwestern corner of its range, Sicyos angulatus occurs in a narrow band along the eastern margin of the Edwards Plateau, continuing northward into Oklahoma, with a broad gap through eastern Texas and eastward to central Louisiana. The peculiar distribution in Texas appears to be real. Fruits in Texas may average slightly smaller, but there appears to be no other difference between the Texas plants and those elsewhere in the range.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 6, p. 26.
Parent taxa Cucurbitaceae > Sicyos
Sibling taxa
S. glaber, S. laciniatus, S. microphyllus
Name authority Linnaeus: Sp. Pl. 2: 1013. (1753)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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