Sida rhombifolia |
Sida longipes |
|
---|---|---|
arrowleaf sida, axocatzín, Cuba jute, Cuban jute, escobilla, huinar, rhombus-leaf sida, sida |
long-stalk sida, stockflower fanpetals |
|
Habit | Subshrubs, 1 m. Stems erect, stellate-puberulent, hairs to 0.1 mm. | Herbs or subshrubs, perennial, to 0.5 m. Stems ascending to erect, with stellate 0.1 mm hairs and glandular hairs. |
Leaves | 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. |
stipules free from petiole, 1-veined, subulate, 3–4 mm, 1/2–1 times length of petiole; petiole 6.3–40 mm, 1/4–1/2 length of blade, minutely stellate-hairy; blade narrowly linear, 2.5–8 cm, 6–20 times longer than wide, base truncate, margins dentate to base, apex subacute, surfaces stellate-hairy. |
Inflorescences | axillary solitary flowers. |
axillary solitary flowers. |
Pedicels | slender, (1–)3–4 cm, 4–6 times length of calyx, much shorter than to ± equaling subtending leaf, at least distalmost. |
slender, 8–12(–16) cm, usually 2+ times length of subtending leaves, much longer than calyx. |
Flowers | calyx ribbed, 5–6 mm, puberulent, lobes ovate; petals yellow, 7–9 mm; staminal column hairy; style 10–14-branched. |
calyx obscurely 10-ribbed basally, 6–8 mm, stellate-hairy, lobes triangular; petals pale orange, 12 mm; staminal column minutely hairy; style 8–10-branched. |
Schizocarps | 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. |
subconic, 5–7 mm diam., minutely glandular-puberulent to subglabrous; mericarps 8–10, 3.5 mm, strongly reticulate laterally, apex muticous. |
2n | = 14, 28. |
|
Sida rhombifolia |
Sida longipes |
|
Phenology | Flowering year-round in warmer localities. | Flowering spring–fall. |
Habitat | Disturbed sites, roadsides, pastures, urban areas | Arid shrublands, often on limestone |
Elevation | 0–1500 m (0–4900 ft) | 1000–1800 m (3300–5900 ft) |
Distribution |
AL; AR; FL; GA; KS; LA; MS; NC; OK; SC; TX; VA; s Asia (China) [Introduced in North America; introduced also in Mexico, West Indies, Central America, South America, tropical Africa, Pacific Islands (Philippines, Polynesia), Australia]
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TX; Mexico (Coahuila) |
Discussion | 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 longipes is known from at least six counties in the Big Bend region of southwestern Texas. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 6, p. 317. | FNA vol. 6, p. 315. |
Parent taxa | Malvaceae > subfam. Malvoideae > Sida | Malvaceae > subfam. Malvoideae > Sida |
Sibling taxa | ||
Synonyms | S. hondensis, S. rhomboidea | |
Name authority | Linnaeus: Sp. Pl. 2: 684. (1753) | A. Gray: Smithsonian Contr. Knowl. 3(5): 19. (1852) |
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