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Sida cordifolia L.

S. altheifolia Sw., S. conferta Link, S. herbacea Cav.

Eng.: Flannel weed, heart-leaf sida.   Fre.: Balai poilu, herbe à paniers, sida à feuilles en cœur.

Small shrub, up to 1(1.5) m in height, erect, velvety in appearance. Branches, petiole and pedicel with stellate hairs mixed in with simple hairs. Leaves with stipules. Stipule 2-6 mm long, filiform, with stellate hairs. Petiole 0.5-3 cm long, with tomentum of stellate hairs. Leaf blade 1-4.5 × 0.5-3.5 cm wide, normally ovate, sometimes orbicular or lanceolate, rounded or slightly cordate at the base, acute at the apex, crenate to serrated, with stellate hairs on both sides, also mixed in with simple hairs along the veins, velvety in appearance. Flowers axillary, solitary or in terminal branches in groups of 2 or more flowers; pedicel 4-7 mm. Calyx 5-10 mm long, fused halfway, densely covered with tomentose stellate hairs on the outside, with some simple hairs; lobes triangular or deltoid. Petals yellow, slightly exceeding the calyx, obovate. Staminal column with about 3 mm. Fruit discoid, between 5-8 mm, stellate-pubescent on the upper part, dehiscent; mericarps 9-10 mm, reticulated, 3-3.5 mm long in radius, c. 2.5 mm wide, with 2 edges 3-5 mm long, retrorse hairs. Seeds brown to dark brown, c. 2 mm.