Sida rhombifolia
Sida ciliaris
arrowleaf sida, axocatzín, Cuba jute, Cuban jute, escobilla, huinar, rhombus-leaf sida, sida
bract fanpetals, bract or fringe or salmon sida, bract sida, huinar
stipules free from petiole, 1-veined, subulate, 5–6 mm, subequal to petiole;
petiole 5–7 mm, 1/10–1/4 length of blade, stellate-puberulent;
blade ± rhombic, 2.5–9 cm, smaller distally, 2–3(–4) times longer than wide, base usually cuneate, sometimes somewhat truncate to subcordate, margins serrate distally, entire basally, apex acute to subobtuse, surfaces stellate-puberulent or glabrescent adaxially.
usually crowded at stem apex;
stipules partially adnate to petiole, 1-veined, linear to oblanceolate, 4–12 mm, usually longer than petiole;
petiole 2–10 mm, 1/4–1/2 length of blade, with appressed stellate hairs;
blade narrowly elliptic, 1–2 cm, usually 2–3 times longer than wide, base truncate to subcordate, margins dentate apically, entire basally, apex acute or obtuse, surfaces stellate-hairy abaxially, glabrous adaxially.
axillary solitary flowers.
terminal, subsessile, usually 1–10-flowered, flowers crowded at branch apices because of shortening of internodes, obscurely solitary, axillary.
slender, (1–)3–4 cm, 4–6 times length of calyx, much shorter than to ± equaling subtending leaf, at least distalmost.
adnate to petiole of leaflike bract, 0.1–0.4 cm, shorter than calyx.
calyx ribbed, 5–6 mm, puberulent, lobes ovate;
petals yellow, 7–9 mm;
staminal column hairy;
style 10–14-branched.
calyx obscurely angulate, 4–6 mm, hirsute, lobes ovate;
petals usually salmon-pink, red-orange, sometimes yellowish, 5–11 mm;
staminal column hairy;
style 5–8-branched.
subconic, 4–5 mm diam., glabrous;
mericarps 10–14, 3–4 mm, laterally reticulate, apex muticous to spined, sometimes 1-spined through failure of dehiscence, glabrous.
conic, 5–6 mm diam., subglabrous;
mericarps 5–8, prominently muricate, otherwise glabrous.
= 14, 28.
= 16.
Sida rhombifolia
Sida ciliaris
Sida rhombifolia is found occasionally on ballast in New Jersey and Pennsylvania. It is a common weed in warm-temperate, subtropical, and tropical areas; its genetic diversity seems to indicate that it was introduced from the Old World. The species has been cultivated for medicinal and cordage use.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Sida ciliaris is found in Broward and Miami-Dade counties and the Florida Keys and in central and southern Texas. The stems can be procumbent but not distinctly mat-forming, and they are often ascending, not flexible, and tufted. The flowers are sometimes described as being salmon-colored; that feature, the congested terminal leaves and flowers, and the adnate stipules are quite distinctive.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
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