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FNA | Family List | FNA Vol. 6 | Malvaceae | Corchorus

1. Corchorus hirsutus Linnaeus, Sp. Pl. 1: 530. 1753.

Jackswitch, woolly corchorus, mallet, cadillo Jackswitch, woolly corchorus, mallet, cadillo

Plants shrubs. Stems erect to semiprostrate, mostly unbranched, 5–10(–15) dm, densely tawny-pubescent, hairs stellate. Leaves persistent; petiole 2–8 mm; blade oblong to oblong-elliptic or elliptic-lanceolate, 1–3.5(–6) cm, base rounded-truncate, margins crenate, proximal teeth not prolonged, apex obtuse to acute, surfaces densely tawny-pubescent, hairs stellate. Inflorescences fasciculate, 2–8-flowered. Pedicels 5–7 mm. Flowers: sepals linear-oblong, 4–6 mm, not awned, stellate-pubescent; petals 5–6 mm; stamens 50–60. Capsules subglobose to short-ellipsoid, not wing-angled, 4-valved, without awns, 7–9(–12) × 7–8 mm, densely tawny-pubescent, hairs stellate. 2n = 14.

Flowering Jul–Oct. Lake edges, disturbed pine rocklands; 0–50 m; introduced; Fla.; West Indies; introduced also in Mexico, Central America, South America, Africa.

Corchorus hirsutus is known only by collections from Hillsborough and Miami-Dade counties.


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