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FNA | Family List | FNA Vol. 6 | Cucurbitaceae | Sicyos

3. Sicyos microphyllus Kunth in A. von Humboldt et al., Nov. Gen. Sp. 2(fol.): 95; 2(qto.): 119. 1817.

Little-leaf burr cucumber Little-leaf burr cucumber

Sicyos deppei G. Don

Stems: young sparsely puberulent, stipitate-glandular, often also hirsute-villous, hairs viscid, strongly to weakly glabrescent, becoming glabrate to sparsely minutely stipitate-glandular. Leaves: petiole (1–)2–4(–7) cm; blade orbiculate-pentagonal to deeply 5-lobed, sinuses (1/3–)1/2–2/3 to base, 4–10 × (4–)6–12 cm, terminal lobe deltate-acuminate to oblong-oblanceolate or obtrullate, basal sinus narrow to broad, margins not dentate, sometimes with few shallow, serrate teeth, evenly sharply indurate-apiculate, barely scabrous, not ciliate, surfaces hirsute to hispid-hirsute; proximal pair of lateral veins divergent from edge of basal sinus. Inflorescences: staminate 10–16-flowered, peduncle plus floral axis 40–140 mm; pistillate 4–10-flowered, peduncle (0–)1–5(–20) mm. Flowers: staminate: corolla greenish white, 2–3 mm, stamens not exserted; pistillate: sepals not foliaceous, mostly triangular, 0.2–2 mm, corolla 1–2 mm (essentially without a tube), stigmas 3-lobed. Pepos ovoid, 5–8 mm, echinate and sparsely, finely villous, spinules retrorsely barbellate.

Flowering Sep–Oct. Rocky slopes and ridges, cliff bases, stream sides, yellow pine woodlands, thickets; 2200–2600 m; N.Mex., Tex.; Mexico (Chihuahua, Coahuila, Durango, Nuevo León, San Luis Potosí, Sinaloa, Sonora, Zacatecas).


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